HR job title
- Professor
- Contact Info
Lacy, Thomas Professor
Positions
- Professor, Mechanical Engineering, College of Engineering
Dr. Lacy is interested in multifunctional composite materials for extreme environments, multiscale modeling, hypervelocity impacts, durability and damage tolerance.
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Overview
Publications
selected publications
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academic article
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Mote, A., Lacy, T. E., & Newman, J. C.
(2024).
Assessing fatigue crack growth thresholds for a Ti-6Al-4V (STOA) alloy using two experimental methods. Engineering Fracture Mechanics.
301, 110006-110006.
-
Lawrence, C., Thamburaja, P., Srinivasa, A., Reddy, J. N., & Lacy, T. E.
(2024).
Determination of total crack free surface area creation and failure in quasi-brittle microcracking solids using 2D GraFEA simulations. Mechanics of Materials.
191, 104946-104946.
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Boushab, D., Mote, A., Harrison, K., Lee, J., Pittman, C. U., & Lacy, T. E.
(2024).
Understanding lightning damage formation in a carbon-epoxy Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) composite. Advanced Composites and Hybrid Materials.
7(2), 58.
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Rogers, J. A., Bass, N. T., Wiest, M. L., Wantz, Z., Wilkerson, J. W., & Lacy, T. E.
(2024).
The pursuit of hypervelocities: A review of two-stage light gas gun aeroballistic ranges. International Journal of Impact Engineering.
185, 104861-104861.
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Rogers, J. A., Mead, P. T., Lukasik, G., Mote, A., Kulatilaka, W. D., Wilkerson, J. W., & Lacy Jr., T. E.
(2023).
Mechanics of hypervelocity simultaneously launched distributed particles br. International Journal of Impact Engineering.
180, 104671-104671.
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Harich, N., Priddy, M. W., Lacy Jr, T., Pittman Jr, C., & Kundu, S.
(2023).
Effects of cyclic absorption-desorption of model fuels by aerospace-grade carbon/epoxy composites. Polymer Composites.
44(8), 5018-5028.
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Shin, H. Y., Lawrence, C., Kota, K. R., Thamburaja, P., Srinivasa, A., Lacy, T. E., & Reddy, J.
(2022).
Experimental, theoretical and numerical studies on plain concrete fracture in the low-strain rate regime-A state-of-the-art review. Mechanics of Advanced Materials and Structures.
29(28), 7115-7159.
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Rogers, J. A., Bass, N., Mead, P. T., Mote, A., Lukasik, G. D., Intardonato, M., ... Lacy, T. E.
(2022).
The Texas A&M University Hypervelocity Impact Laboratory: A modern aeroballistic range facility. Review of Scientific Instruments.
93(8), 085106-085106.
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He, G. e., Liu, Y., Lacy, T. E., & Horstemeyer, M. F.
(2022).
A historical review of the traditional methods and the internal state variable theory for modeling composite materials. Mechanics of Advanced Materials and Structures.
29(18), 2617-2638.
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Rogers, J. A., Mote, A., Mead, P. T., Harrison, K., Lukasik, G. D., Kota, K. R., ... Lacy, T.
(2022).
Hypervelocity impact response of monolithic UHMWPE and HDPE plates. International Journal of Impact Engineering.
161, 104081-104081.
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Harich, N., Bassou, R., Priddy, M. W., Lacy Jr, T. E., Pittman Jr, C. U., & Kundu, S.
(2022).
Effects of alternative jet fuel blends on aerospace-grade carbon/epoxy composites. Materials and Design.
221, 110993-110993.
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Boushab, D., Gharghabi, P., Lee, J., Lacy, T. E., Pittman, C. U., Mazzola, M. S., & Velicki, A.
(2021).
Lightning arc channel effects on surface damage development on a PRSEUS composite panel: An experimental study. Composites Part B: Engineering.
224, 109217-109217.
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Lee, J., Lacy, T., & Pittman, C.
(2021).
Lightning mechanical damage prediction in carbon/epoxy laminates using equivalent air blast overpressure. Composites Part B: Engineering.
212, 108649-108649.
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Lee, J., Lacy, T., & Pittman, C.
(2021).
Coupled thermal electrical and mechanical lightning damage predictions to carbon/epoxy composites during arc channel shape expansion. Composite Structures.
255, 112912-112912.
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Peterson, L. A., Horstemeyer, M. F., Lacy, T. E., & Moser, R. D.
(2020).
Experimental characterization and constitutive modeling of an aluminum 7085-T711 alloy under large deformations at varying strain rates, stress states, and temperatures. Mechanics of Materials.
151, 103602-103602.
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Daghigh, V., Lacy, T., Daghigh, H., Gu, G., Baghaei, K. T., Horstemeyer, M. F., & Pittman, C.
(2020).
Machine learning predictions on fracture toughness of multiscale bio-nano-composites. Journal of Reinforced Plastics and Composites.
39(15-16), 587-598.
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Kota, K. R., Ricks, T., Gomez, L., de los Monteros, J. E., Olivares, G., & Lacy, T.
(2020).
Development and validation of finite element impact models of high-density UAS components for use in air-to-air collision simulations. Mechanics of Advanced Materials and Structures.
27(13), 1178-1199.
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Daghigh, V., Lacy, T., Daghigh, H., Gu, G., Baghaei, K. T., Horstemeyer, M. F., & Pittman, C.
(2020).
Heat deflection temperatures of bio-nano-composites using experiments and machine learning predictions. Materials Today Communications.
22, 100789-100789.
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Upadhyaya, P., Kumar, S., Reddy, J. N., & Lacy, T.
(2020).
Multiscale modeling of strength and failure behavior of carbon nanostructure reinforced epoxy composite adhesives in bonded systems. European Journal of Mechanics, A/Solids.
80, 103932-103932.
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Daghigh, H., Daghigh, V., Milani, A., Tannant, D., Lacy, T., & Reddy, J. N.
(2020).
Nonlocal bending and buckling of agglomerated CNT-Reinforced composite nanoplates. Composites Part B: Engineering.
183, 107716-107716.
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Lee, J., Lacy, T., Pittman, C., & Reddy, J. N.
(2019).
Numerical estimations of lightning-induced mechanical damage in carbon/epoxy composites using shock wave overpressure and equivalent air blast overpressure. Composite Structures.
224, 111039-111039.
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Ouidadi, H., Lacy, T., & Newman, J.
(2019).
Evaluation of the twoparameter fracture criterion for various crack configurations made of 7075T6 aluminium alloy using finiteelement fracture simulations. Fatigue & Fracture of Engineering Materials & Structures (FFEMS).
42(8), 1743-1759.
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Mishra, S., Prado, R., Zhang, S., Lacy, T. E., Gu, X., & Kundu, S.
(2019).
Mechanical Properties and Failure Behavior of Physically Assembled Triblock Copolymer Gels with Varying Midblock Length. Journal of Polymer Science, Part B: Polymer Physics.
57(15), 1014-1026.
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Lee, J., Lacy, T., Pittman, C., & Mazzola, M. S.
(2019).
Comparison of lightning protection performance of carbon/epoxy laminates with a non-metallic outer layer. Journal of Reinforced Plastics and Composites.
38(7), 301-313.
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Abuomar, O., Nouranian, S., King, R., & Lacy, T.
(2019).
Application of materials informatics to vapor-grown carbon nanofiber/vinyl ester nanocomposites through self-organizing maps and clustering techniques. COMPUTATIONAL MATERIALS SCIENCE.
158, 98-109.
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Lee, J., Gharghabi, P., Boushab, D., Ricks, T. M., Lacy, T., Pittman, C., Mazzola, M. S., & Velicki, A.
(2018).
Artificial lightning strike tests on PRSEUS panels. Composites Part B: Engineering.
154, 467-477.
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Lee, J., Lacy, T. E., Pittman, C. U., & Mazzola, M. S.
(2018).
Temperaturedependent thermal decomposition of carbon/epoxy laminates subjected to simulated lightning currents. Polymer Composites.
39(S4), e2185-e2198.
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Lee, J., Lacy, T. E., Pittman, C. U., & Mazzola, M. S.
(2018).
Thermal response of carbon fiber epoxy laminates with metallic and nonmetallic protection layers to simulated lightning currents. Polymer Composites.
39(S4), e2149-e2166.
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Mishra, S., Badani Prado, R. M., Lacy, T. E., & Kundu, S.
(2018).
Investigation of failure behavior of a thermoplastic elastomer gel. SOFT MATTER.
14(39), 7958-7969.
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Chen, S., Sun, S., Li, C., Pittman, C. U., Lacy, T. E., Hu, S., & Gwaltney, S. R.
(2018).
Molecular dynamics simulations of the aggregation behaviour of overlapped graphene sheets in linear aliphatic hydrocarbons. Molecular Simulation.
44(12), 947-953.
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Daghigh, V., Lacy, T. E., Pittman, C. U., & Daghigh, H.
(2018).
Influence of maleated polypropylene coupling agent on mechanical and thermal behavior of latania fiberreinforced PP/EPDM composites. Polymer Composites.
39(S3), e1751-e1759.
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Mishra, S., Lacy, T. E., & Kundu, S.
(2018).
Effect of surface tension and geometry on cavitation in soft solids. International Journal of Non-Linear Mechanics.
98, 23-31.
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Newman, J., Kota, K., & Lacy, T. E.
(2018).
Fatigue and crack-growth behavior in a titanium alloy under constant-amplitude and spectrum loading. Engineering Fracture Mechanics.
187, 211-224.
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Ricks, T. M., Lacy, T. E., Bednarcyk, B. A., Robens-Radermacher, A., Pineda, E. J., & Arnold, S. M.
(2018).
Solution of the Nonlinear High-Fidelity Generalized Method of Cells Micromechanics Relations via Order-Reduction Techniques. Mathematical Problems in Engineering.
2018, 1-11.
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Zabet, M., Trinh, K., Toghiani, H., Lacy, T. E., Pittman, C. U., & Kundu, S.
(2017).
Anisotropic Nanoparticles Contributing to Shear-Thickening Behavior of Fumed Silica Suspensions. ACS Omega.
2(12), 8877-8887.
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Dou, Y., Ricks, T. M., DuBien, J. L., Lacy, T. E., & Liu, Y.
(2017).
Response surface modeling to facilitate the parametric study of transversely impacted pressurized pipelines. Thin Walled Structures.
119, 646-652.
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Lee, J., Thompson, S. M., & Lacy, T. E.
(2017).
Thermal spreading analysis of a transversely isotropic heat spreader. International Journal of Thermal Sciences.
118, 461-474.
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Chen, S., Sun, S., Li, C., Pittman, C. U., Lacy, T. E., Hu, S., & Gwaltney, S. R.
(2017).
Molecular dynamics simulations of the graphene sheet aggregation in dodecane. Journal of Nanoparticle Research.
19(6), 195.
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DuPont, J., Yamada, Y., Lacy, T. E., & Newman, J. C.
(2017).
Prediction of fatigue-crack growth for 7075-T7351 aluminum alloy under various flight-load spectra. Engineering Fracture Mechanics.
177, 79-94.
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Nasihatgozar, M., Daghigh, V., Lacy, T. E., Daghigh, H., Nikbin, K., & Simoneau, A.
(2016).
Mechanical characterization of novel latania natural fiber reinforced PP/EPDM composites. Polymer Testing.
56, 321-328.
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Chen, S., Sun, S., Li, C., Pittman, C. U., Lacy, T. E., Hu, S., & Gwaltney, S. R.
(2016).
Behavior of protruding lateral plane graphene sheets in liquid dodecane: molecular dynamics simulations. Journal of Nanoparticle Research.
18(11), 317.
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Ricks, T. M., Lacy, T. E., Pineda, E. J., Bednarcyk, B. A., & Arnold, S. M.
(2016).
Computationally efficient High-Fidelity Generalized Method of Cells micromechanics via order-reduction techniques. Composite Structures.
156, 2-9.
-
Warren, J. M., Lacy, T., & Newman, J. C.
(2016).
Validation of the Two-Parameter Fracture Criterion using 3D finite-element analyses with the critical CTOA fracture criterion. Engineering Fracture Mechanics.
151, 130-137.
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Simsiriwong, J., Sullivan, R. W., Lacy, T. E., & Hilton, H. H.
(2015).
A statistical approach to characterize the viscoelastic creep compliances of a vinyl ester polymer. Polymer Testing.
48, 183-198.
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Warren, J., Offenberger, S., Toghiani, H., Pittman, C. U., Lacy, T. E., & Kundu, S.
(2015).
Effect of Temperature on the Shear-Thickening Behavior of Fumed Silica Suspensions. ACS Applied Materials & Interfaces.
7(33), 18650-18661.
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Drake, D. A., Sullivan, R. W., Lacy, T. E., Pittman, C. U., Toghiani, H., DuBien, J. L., Nouranian, S., & Simsiriwong, J.
(2015).
Creep characterization of vaporgrown carbon nanofiber/vinyl ester nanocomposites using a response surface methodology. Journal of Applied Polymer Science.
132(26), n/a-n/a.
-
Abuomar, O., Nouranian, S., King, R., Ricks, T. M., & Lacy, T. E.
(2015).
Comprehensive mechanical property classification of vapor-grown carbon nanofiber/vinyl ester nanocomposites using support vector machines. COMPUTATIONAL MATERIALS SCIENCE.
99, 316-325.
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Zhou, Y., Jeelani, S., & Lacy, T.
(2014).
Experimental study on the mechanical behavior of carbon/epoxy composites with a carbon nanofiber-modified matrix. Journal of Composite Materials.
48(29), 3659-3672.
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Ricks, T. M., Lacy, T. E., Bednarcyk, B. A., Arnold, S. M., & Hutchins, J. W.
(2014).
A multiscale progressive failure modeling methodology for composites that includes fiber strength stochastics. Computers, Materials and Continua.
40(2), 99-129.
-
Lee, J., Nouranian, S., Torres, G. W., Lacy, T. E., Toghiani, H., Pittman, C. U., & DuBien, J. L.
(2013).
Characterization, prediction, and optimization of flexural properties of vaporgrown carbon nanofiber/vinyl ester nanocomposites by response surface modeling. Journal of Applied Polymer Science.
130(3), 2087-2099.
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Yu, J., Lacy, T. E., Toghiani, H., & Pittman, C. U.
(2013).
Micromechanically-based effective thermal conductivity estimates for polymer nanocomposites. Composites Part B: Engineering.
53, 267-273.
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Nouranian, S., Lacy, T. E., Toghiani, H., Pittman, C. U., & DuBien, J. L.
(2013).
Response surface predictions of the viscoelastic properties of vaporgrown carbon nanofiber/vinyl ester nanocomposites. Journal of Applied Polymer Science.
130(1), 234-247.
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AbuOmar, O., Nouranian, S., King, R., Bouvard, J. L., Toghiani, H., Lacy, T. E., & Pittman, C. U.
(2013).
Data mining and knowledge discovery in materials science and engineering: A polymer nanocomposites case study. Advanced Engineering Informatics: the science of supporting knowledge-intensive activities.
27(4), 615-624.
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Jang, C., Lacy, T. E., Gwaltney, S. R., Toghiani, H., & Pittman, C. U.
(2013).
Interfacial shear strength of cured vinyl ester resin-graphite nanoplatelet from molecular dynamics simulations. Polymer.
54(13), 3282-3289.
-
Yu, J., Lacy, T. E., Toghiani, H., & Pittman, C. U.
(2013).
Effective property estimates for composites containing multiple nanoheterogeneities: Part II nanofibers and voids. Journal of Composite Materials.
47(10), 1273-1282.
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Torres, G. W., Nouranian, S., Lacy, T. E., Toghiani, H., Pittman, C. U., & DuBien, J. L.
(2013).
Statistical characterization of the impact strengths of vaporgrown carbon nanofiber/vinyl ester nanocomposites using a central composite design. Journal of Applied Polymer Science.
128(2), 1070-1080.
-
Yu, J., Lacy, T. E., Toghiani, H., & Pittman, C. U.
(2013).
Effective property estimates for composites containing multiple nanoheterogeneities: Part I Nanospheres, nanoplatelets, and voids. Journal of Composite Materials.
47(5), 549-558.
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Nouranian, S., Lee, J., Torres, G. W., Lacy, T. E., Toghiani, H., & Pittman, C. U.
(2013).
Effects of Moulding Condition and Curing Atmosphere on the Flexural Properties of Vinyl Ester. Polymers and Polymer Composites.
21(2), 61-64.
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Yu, J., Lacy, T. E., Toghiani, H., Pittman, C. U., & Schneider, J.
(2012).
Determination of carbon nanofiber morphology in vinyl ester nanocomposites. Journal of Composite Materials.
46(16), 1943-1953.
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Jang, C., Lacy, T. E., Gwaltney, S. R., Toghiani, H., & Pittman, C. U.
(2012).
Relative Reactivity Volume Criterion for Cross-Linking: Application to Vinyl Ester Resin Molecular Dynamics Simulations. MACROMOLECULES.
45(13), 5619-5619.
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Jang, C., Lacy, T. E., Gwaltney, S. R., Toghiani, H., & Pittman, C. U.
(2012).
Relative Reactivity Volume Criterion for Cross-Linking: Application to Vinyl Ester Resin Molecular Dynamics Simulations. MACROMOLECULES.
45(11), 4876-4885.
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Jang, C., Nouranian, S., Lacy, T. E., Gwaltney, S. R., Toghiani, H., & Pittman, C. U.
(2012).
Molecular dynamics simulations of oxidized vapor-grown carbon nanofiber surface interactions with vinyl ester resin monomers. Carbon.
50(3), 748-760.
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Yohannes, A., Lacy, T. E., & Hwang, Y.
(2012).
Hybrid Boundary Element Method for Two-Dimensional Linear Elastic Fracture Analysis. Mechanics of Advanced Materials and Structures.
19(1-3), 129-143.
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Yu, J., Lacy, T. E., Toghiani, H., Pittman, C. U., & Hwang, Y.
(2011).
Classical micromechanics modeling of nanocomposites with carbon nanofibers and interphase. Journal of Composite Materials.
45(23), 2401-2413.
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Nouranian, S., Toghiani, H., Lacy, T. E., Pittman, C. U., & Dubien, J.
(2011).
Dynamic mechanical analysis and optimization of vapor-grown carbon nanofiber/vinyl ester nanocomposites using design of experiments. Journal of Composite Materials.
45(16), 1647-1657.
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Nouranian, S., Jang, C., Lacy, T. E., Gwaltney, S. R., Toghiani, H., & Pittman, C. U.
(2011).
Molecular dynamics simulations of vinyl ester resin monomer interactions with a pristine vapor-grown carbon nanofiber and their implications for composite interphase formation. Carbon.
49(10), 3219-3232.
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Du, Y., Zhang, J., Yu, J., Lacy, T. E., Xue, Y., Toghiani, H., Horstemeyer, M. F., & Pittman, C. U.
(2010).
Kenaf Bast Fiber BundleReinforced Unsaturated Polyester Composites. IV: Effects of Fiber Loadings and Aspect Ratios on Composite Tensile Properties. Forest Products Journal.
60(7), 582-591.
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Du, Y., Zhang, J., Xue, Y., Lacy, T. E., Toghiani, H., Horstemeyer, M. F., & Pittman, C. U.
(2010).
Kenaf Bast Fiber BundleReinforced Unsaturated Polyester Composites. III: Statistical Strength Characteristics and Cost-Performance Analyses. Forest Products Journal.
60(6), 514-521.
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Du, Y., Zhang, J., Wang, C., Lacy, T. E., Xue, Y., Toghiani, H., Horstemeyer, M. F., & Pittman, C. U.
(2010).
Kenaf Bast Fiber BundleReinforced Unsaturated Polyester Composites. II: Water Resistance and Composite Mechanical Properties Improvement. Forest Products Journal.
60(4), 366-372.
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Du, Y., Zhang, J., Toghiani, H., Lacy, T. E., Xue, Y., Horstemeyer, M. F., & Pittman, C. U.
(2010).
Kenaf Bast Fiber BundleReinforced Unsaturated Polyester Composites. I: Processing Techniques for High Kenaf Fiber Loading. Forest Products Journal.
60(3), 289-295.
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Sullivan, R. W., Hwang, Y., Rais-Rohani, M., & Lacy, T.
(2009).
Structural Analysis and Testing of an Ultralight Unmanned-Aerial-Vehicle Carbon-Composite Wing. Journal of Aircraft.
46(3), 814-820.
-
Yamada, Y., Lacy, T., & Luzar, J.
(2009).
Residual-Strength Assessment of Modified Transport Aircraft Fuselages. Journal of Aircraft.
46(1), 85-94.
-
Ingram, J., Zhou, Y., Jeelani, .., Lacy, T., & Horstemeyer, M. F.
(2008).
Effect of strain rate on tensile behavior of polypropylene and carbon nanofiber filled polypropylene. Materials Science & Engineering: A.
489(1-2), 99-106.
-
Zhou, Y., Akanda, S. R., Jeelani, .., & Lacy, T. E.
(2007).
Nonlinear constitutive equation for vapor-grown carbon nanofiber-reinforced SC-15 epoxy at different strain rate. Materials Science & Engineering: A.
465(1-2), 238-246.
-
Yamada, Y., Lacy, T., Newman, J., Smith, B. L., & Kumar, B.
(2007).
Effects of crack closure on fatigue crack-growth predictions for 2024-T351 aluminum alloy panels under spectrum loading. International Journal of Fatigue.
29(8), 1503-1509.
-
Hwang, Y., & Lacy, T. E.
(2007).
Numerical Estimates of the Compressive Strength of Impact-damaged Sandwich Composites. Journal of Composite Materials.
41(3), 367-388.
-
Samarah, I. K., Weheba, G. S., & Lacy, T. E.
(2006).
Response surface characterization of the mechanical behavior of impact-damaged sandwich composites. Journal of Applied Statistics.
33(4), 427-437.
-
Cope, D. A., & Lacy, T. E.
(2004).
Modeling Mechanical Fasteners in Single-Shear Lap Joints. Journal of Aircraft.
41(6), 1491-1497.
-
Hijazi, A. L., Lacy, T. E., & Smith, B. L.
(2004).
Comparison of Residual Strength Estimates for Bolted Lap-Joint Panels. Journal of Aircraft.
41(3), 657-664.
-
Hijazi, A. L., Smith, B. L., & Lacy, T. E.
(2004).
Linkup Strength of 2024-T3 Bolted Lap Joint Panels with Multiple Site Damage. Journal of Aircraft.
41(2), 359-364.
-
Lacy, T. E., & Hwang, Y.
(2003).
Numerical modeling of impact-damaged sandwich composites subjected to compression-after-impact loading. Composite Structures.
61(1-2), 115-128.
-
Lacy, T. E., McDowell, D. L., & Talreja, R.
(1999).
Gradient concepts for evolution of damage. Mechanics of Materials.
31(12), 831-860.
-
Lacy, T. E., Talreja, R., & McDowell, D. L.
(1997).
Effects of damage distribution on evolution. ASTM Special Technical Publication.
1315, 131-149.
-
Lacy, T. E., McDowell, D. L., Willice, P. A., & Talreja, R.
(1997).
On Representation of Damage Evolution in Continuum Damage Mechanics. International Journal of Damage Mechanics.
6(1), 62-95.
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Madabhushi, A., Pittman, C. U., Lacy, T. E., Kundu, S., & Priddy, M. W.
A char removal protocol to visualize fiber crosssections of carbon/epoxy composites subjected to flame. Polymer Composites.
-
Feier, I. I., Anderson, M. L., Boudrie, J. R., Jarritt-Izzi, E. M., Gabriel, J. L., Overby, K. D., ... Lacy, T. E.
Design and Evaluation of Additively Manufactured Polyetherimide Orbital Debris Shielding for Spacecraft. International Journal of Impact Engineering.
196, 105150-105150.
-
Murtaugh, M., Rogers, J. A., Allaire, D., & Lacy, T. E.
Empirical Models for Predicting Two-Stage Light Gas Gun Muzzle Velocity. Journal of Dynamic Behavior of Materials.
1-19.
-
Boushab, D., Ouidadi, H., Mote, A., Priddy, M., Kundu, S., Pittman Jr, C., ... Lacy Jr, T.
Fire impact on mechanically failed graphite/epoxy composites
-
Peterson, L., Horstemeyer, M., Lacy, T., & Moser, R.
Using an Internal State Variable Model Framework to Investigate the Influence of Microstructure and Mechanical Properties on Ballistic Performance of Steel Alloys. Metals.
13(7), 1285-1285.
-
Mote, A., Lacy, T. E., & Newman, J. C.
(2024).
Assessing fatigue crack growth thresholds for a Ti-6Al-4V (STOA) alloy using two experimental methods. Engineering Fracture Mechanics.
301, 110006-110006.
-
conference paper
-
Intardonato, M. J., Hay, M. K., Davis, S., Lukasik, G., Rogers, J., Lacy, T. E., & Kulatilaka, W. D.
(2024).
MHz-Rate Spectroscopic Investigation of Hypervelocity Impacts on Metal Targets
-
Boudrie, J., Shea, E., Pyzdrowski, H., Brisker, K., Fiori, P., Anderson, M. L., ... Lacy, T. E.
(2023).
Design and Evaluation of Additively-Manufactured MMOD Satellite Shielding
-
Lukasik, G., Schweizer, C., Rogers, J., Lacy, T. E., & Kulatilaka, W. D.
(2023).
Three-Dimensional Characterization of Hypervelocity Shock-Droplet Interactions Using Digital In-Line Holography
-
Rogers, J., Mead, P. T., Wilkerson, J., Lacy, T. E., & Williams, N.
(2023).
Simulating Hypervelocity Impacts to High-Density Polyethylene
-
Lukasik, G., Rogers, J., Kota, K. R., Bowersox, R. D., Lacy, T. E., & Kulatilaka, W. D.
(2022).
Ultra-Highspeed Optical Diagnostics of Water Droplet Impact, Breakup and Shock Boundary Layer Interactions of Hypervelocity Projectiles
-
Lukasik, G. D., Rogers, J. A., Lacy, T. E., & Kulatilaka, W. D.
(2022).
High-Speed Imaging Diagnostics of Hypervelocity Projectile-Water Droplet Interactions. ltu5b.5.
-
Warren, J., Cole, M., Offenberger, S., Kota, K. R., Lacy, T. E., Toghiani, H., ... Pittman, C.
(2021).
Hypervelocity Impacts on Honeycomb Core Sandwich Panels Filled with Shear Thickening Fluid. International Journal of Impact Engineering.
103803-103803.
-
Lukasik, G., Rogers, J., Kota, K. R., Wilkerson, J. W., Lacy, T. E., & Kulatilaka, W. D.
(2021).
Application of Digital Particle Tracking and Schlieren Imaging to Study Debris Cloud and Shockwave Formation During Hypervelocity Impacts
-
Rogers, J., Mead, P. T., Harrison, K., Kota, K. R., Leaverton, J. D., Lukasik, G., ... Lacy, T. E.
(2021).
Hypervelocity Impact Response of Polyethylene Plates
-
Bowering, M. H., Heard, W. F., Lacy, T., Pittman, C., & Kundu, S.
(2019).
Strain rate effects during ultra-high strain rate penetration of polymeric materials. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY.
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Gharghabi, P., Lee, J., Mazzola, M., Lacy, T., & Kluss, J.
(2017).
Development of an Experimental Setup to Study Carbon/Epoxy Composite Subjected to Simulated Lightning Current. Annual Report Conference on Electrical Insulation and Dielectric Phenomena.
773-776.
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Ricks, T. M., Lacy, T. E., Pineda, E. J., Bednarcyk, B. A., & Arnold, S. M.
(2017).
Order-reduced solution of the nonlinear high-fidelity generalized method of cells micromechanics relations. 1642-1654.
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Gharghabi, P., Lee, J., Mazzola, M. S., & Lacy, T. E.
(2016).
Development of an experimental setup to analyze carbon/epoxy composite subjected to current impulses
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Kabanda Mihigo, C., Warren, J., Zabet, M., Lacy, T. E., Kundu, S., Pittman, C. U., & Toghiani, H.
(2016).
Effect of Suspended Particle Shapes on Shear Thickening Fluid Behavior
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Lee, J., Lacy, T. E., Pittman, C. U., & Mazzola, M. S.
(2016).
Thermal response to simulated lightning currents on stitched composite aircraft structures
-
Jayakody, N., Jha, R., & Lacy, T. E.
(2015).
Damage Diagnostics of Composite Fan Blades Using the Modified Time Reversal Method. v001t05a004-v001t05a004.
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Ricks, T. M., Lacy, T. E., Pineda, E. J., Bednarcyk, B. A., & Arnold, S. M.
(2015).
Computationally efficient solution of the High-Fidelity Generalized Method of cells micromechanics relations
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Warren, J., Kota, K. R., Westberg, S. M., Lacy, T., Kundu, S., Toghiani, H., & Pittman, C.
(2015).
Hypervelocity Impacts of Shear Thickening Fluid Imbibed Metallic Foam Core Sandwich Panels. 1-9.
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Sullivan, R. W., & Lacy, T. E.
(2015).
Laminate strain allowables as design parameters in teaching an introductory course on composite materials
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Khalili, A., Samaratunga, D., Jha, R., Lacy, T. E., & Gopalakrishnan, S.
(2015).
WSFE-based user-defined elements in ABAQUS for modeling 2D laminated composites with complex features
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Khalili, A., Samaratunga, D., Jha, R., Lacy, T. E., & Srinivasan, G.
(2015).
Wavelet Spectral Finite Element Based User-Defined Element in ABAQUS for Modeling Delamination in Composite Beams
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Warren, J., Kundu, S., Offenberger, S., Lacy, T., Toghiani, H., & Pittman, C. U.
(2014).
Effect of temperature on shear thickening fluid rheology
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Mcwilliams, K., Ricks, T. M., Lacy, T. E., Roy, S., & Jha, R.
(2014).
Efficient coupling of micro/macroscale analyses with stochastic variations of constituent properties
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Offenberger, S. A., Warren, J., Lacy, T. E., Al-Ostaz, A., Toghiani, H., Kundu, S., & Pittman, C.
(2014).
Novel Composite Space Shielding Concepts for Hypervelocity Orbital Debris Impact Mitigation
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Feiguel, A., Ricks, T. M., McWilliams, K., Lacy, T. E., Myers, O. J., Donohoe, P., Jha, R., & Sullivan, R. W.
(2014).
On the Viability of Energy Harvesting Piezoelectric Devices for Supplemental Power Generation in Uninhabited Aircraft Systems
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Ricks, T. M., Yu, J., Lacy, T. E., & Sullivan, R. W.
(2013).
Coupled multi-inclusion and multi-coating micromechanics modeling of viscoelastic composite materials. 1709-1719.
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Mcwilliams, K., Lacy, T. E., Roy, S., & Jha, R.
(2013).
Development of an ICME-based airframe digital twin model of an all-composite air vehicle. 114-125.
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Warren, J., Cole, M., Offenberger, S., Lacy, T., Toghiani, H., Burchell, M., Kundu, S., & Pittman, C. U.
(2013).
Hypervelocity impact of honeycomb core sandwich panels filled with shear thickening fluid. 1352-1362.
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Ricks, T. M., Lacy, T. E., Bednarcyk, B. A., & Arnold, S. M.
(2013).
The effect of fiber strength stochastics and local fiber volume fraction on multiscale progressive failure of composites. 77-85.
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Drake, D. A., Sullivan, R. W., Toghiani, H., Lacy, T. E., Pittman, C. U., DuBien, J., & Nouranian, S.
(2013).
Viscoelastic characterization of vinyl ester nano-composites using response surface modeling. 1738-1754.
-
Simsiriwong, J., Sullivan, R. W., Lacy, T. E., & Hilton, H. H.
(2013).
Viscoelastic creep compliance of a vinyl ester polymer with statistical distribution functions. 1720-1737.
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Yu, J., Lacy, T. E., Toghiani, H., & Pittman, C. U.
(2013).
Micromechanically-based effective thermal conductivity estimates for polymer nanocomposites. Composites Part B: Engineering.
267-273.
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Drake, D., Simsiriwong, J., Sullivan, R. W., Lacy, T. E., Pittman, C. U., Toghiani, H., Du Bien, J., & Nouranian, S.
(2013).
Creep compliance characterization of vapor-grown carbon nanofiber/vinyl ester nanocomposites using a central composite design of experiments. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.
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Drake, D. A., Simsiriwong, J., Sullivan, R. W., Toghiani, H., Nouranian, S., DuBien, J., Lacy, T. E., & Pittman, C. U.
(2013).
Creep Compliance Characterization of Vapor-Grown Carbon Nanofiber/Vinyl Ester Nanocomposites Using a Central Composite Design of Experiments
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Ricks, T. M., Lacy, T. E., Pineda, E. J., Bednarcyk, B. A., & Arnold, S. M.
(2013).
The Effect of Scale Dependent Discretization on the Progressive Failure of Composite Materials Using Multiscale Analyses. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.
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Ricks, T. M., Lacy, T. E., Pineda, E. J., Bednarcyk, B. A., & Arnold, S. M.
(2013).
The Effect of Scale Dependent Discretization on the Progressive Failure of Composite Materials Using Multiscale Analyses
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Ricks, T. M., Lacy, T. E., Bednarcyk, B. A., & Arnold, S. M.
(2012).
A multiscale modeling methodology for metal matrix composites including fiber strength stochastics
-
Warren, J., Offenberger, S., Lacy, T., Toghiani, H., & Pittman, C. U.
(2012).
Characterization of debris cloud distribution and damage caused by hypervelocity impacts on vapor grown carbon nanofiber reinforced laminate shielding. 524-533.
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Drake, D. A., Simsiriwong, J., Sullivan, R. W., Toghiani, H., Lacy, T. E., & Pittman, C. U.
(2012).
Creep characterization of vinyl ester nano-composites using the digital image correlation technique. 1557-1568.
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Jang, C., Lacy, T. E., Gwaltney, S. R., Tohigani, H., & Pittman, C. U.
(2012).
Interfacial shear strength of a cured vinyl ester resin at graphene sheets from molecular dynamics simulations. 1951-1969.
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Jang, C., Lacy, T. E., Gwaltney, S. R., Pittman, C. U., & Toghiani, H.
(2012).
Molecular dynamics simulations of vinyl ester resin crosslinking
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Ricks, T. M., Lacy, T. E., Bednarcyk, B. A., & Arnold, S. M.
(2012).
On the development of a damage tolerance plan for multifunctional composites. 1378-1391.
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Ricks, T., Lacy, T., Bednarcyk, B., & Arnold, S.
(2012).
A Multiscale Modeling Methodology for Metal Matrix Composites Including Fiber Strength Stochastics. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.
-
Yu, J., Lacy, T., Toghiani, H., & Pittman, C.
(2012).
Micromechanically Based Effective Thermal Conductivity Estimates for Polymer Nanocomposites
-
Jang, C., Lacy, T., Gwaltney, S., Pittman, C., & Toghiani, H.
(2012).
Molecular dynamics simulation of vinyl ester resin crosslinking. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.
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Lacy, T. E., Yu, J., Axe, J., & Luczak, T.
(2012).
The Effect of Driver Mass and Shaft Length on Initial Golf Ball Launch Conditions: A Designed Experimental Study. Procedia Engineering.
379-384.
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Yu, J., Lacy, T. E., Toghiani, H., & Pittman, C. U.
(2011).
Effective property estimates for composites containing multiple nanoheterogeneities. 1448-1466.
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Nouranian, S., Toghiani, H., Swalm, D. C., Lacy, T. E., DuBien, J. L., & Pittman, C. U.
(2011).
Designed experimental study of vapor-grown carbon nanofiber/vinyl ester nanocomposites with focus on the effects of formulation and processing factors on the nanocomposite dynamic mechanical properties over a wide temperature range. 974-975.
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Jang, C., Nouranian, S., Lacy, T. E., Gwaltney, S. R., Toghiani, H., & Pittman, C. U.
(2011).
Molecular dynamics simulations of an oxidized vapor-grown carbon nanofiber and vinyl ester resin interactions leading to a possible interphase formation in the cured nanocomposite. 82-83.
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Jang, C., Nouranian, S., Lacy, T. E., Gwaltney, S. R., Toghiani, H., & Pittman, C. U.
(2011).
Molecular dynamics simulations of an oxidized vapor-grown carbon nanofiber and vinyl ester resin interactions leading to a possible interphase formation in the cured nanocomposite. 108-109.
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Yu, J., Lacy, T. E., Toghiani, H., & Pittman, C. U.
(2010).
Micromechanical modeling of nanoreinforced composites with carbon nanofibers and interphase. 622-636.
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Hutchins, J., Liu, K., Lacy, T., Chattopadhyay, A., & Bednarcyk, B.
(2010).
A Comparison of Triaxially-Braided Composites Using the Generalized Method of Cells. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.
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Yu, J., Lacy, T., Toghiani, H., & Pittman, C.
(2010).
Material Property Estimations and Comparisons of Nano-Reinforced Polymer Composites Using Classical Micromechanics and the Generalized Method of Cells. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.
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Rouhi, M., Rais-Rohani, M., Lacy, T., Garg, M., & Abdi, F.
(2010).
Mechanical Characterization of Nanofiber Enhanced Polymer with Application to Composite Crush Tubes. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.
-
Nouranian, S., Toghiani, H., Lacy, T. E., & Pittman, C. U.
(2009).
Experimental study of the dynamic mechanical properties of vapor-grown carbon nanofiber/vinyl ester nanocomposites fabricated using coupled high-shear mixing and ultrasonication
-
Zhou, Y., Jeelani, S., & Lacy, T. E.
(2009).
Fabrication and characterization of vapor grown carbon nanofiber reinforced polyester. 969-978.
-
Yamada, Y., Newman, J., & Lacy, T.
(2009).
Prediction of fatigue crack growth for 7075-T7351 aluminum alloy under various flight load spectra. 6402-6411.
-
Nouranian, S., Toghiani, H., Lacy, T. E., & Pittman, C. U.
(2009).
Response surface study of vapor-grown carbon nanoflber/vinyl ester nanocomposites fabricated using high-shear mixing. 643-660.
-
Nouranian, S., Toghiani, H., Lacy, T. E., & Pittman, C. U.
(2009).
Viscoelastic properties of vapor-grown carbon nanofiber/vinyl ester nanocomposites. International Sampe Symposium and Exhibition.
-
Hutchins, J., Sisti, J., Lacy, T., Nouranian, S., Toghiani, H., & Pittman, C.
(2009).
High Strain Rate Behavior of Carbon Nanofiber Reinforced Vinyl Ester. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.
-
Zhou, Y., Shaik, M. S., Jeelani, S., Lacy, T. E., & Horstemeyer, M. F.
(2008).
Experimental study on thermal and mechanical properties of clay modified carbon fiber reinforced epoxy. 1286-1294.
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Shaik, M. S., Zhou, Y., Lacy, T., & Horstemeyer, M. F.
(2008).
Experimental study on strain rate sensitivity of aligned carbon nanofiber reinforced polypropylene. 428-431.
-
Zhou, Y., Jeelani, .., & Lacy, T.
(2008).
Strain Rate Dependent Behavior of Carbon Nanofiber Filled Polypropylene. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.
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Sullivan, R. W., Hwang, Y., Rais-Rohani, M., Lacy, T. E., & Wiwattananon, P.
(2007).
Static response of a composite wing under a whiffletree loading. 1106-1123.
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Yohannes, A., Lacy, T., & Hwang, Y.
(2007).
Hybrid Boundary Element Method for Two-Dimensional Linear Elastic Fracture Analysis. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.
8091-8110.
-
Samarah, I. K., Weheba, G. S., & Lacy, T. E.
(2006).
Characterization of the Effect of Material Configuration and Impact Parameters on Damage Tolerance of Sandwich Composites. SAE Technical Papers.
-
Hwang, Y., & Lacy, T. E.
(2006).
Compression-after-impact strength estimates for finite width sandwich panels. 359-377.
-
Sullivan, R., Rais-Rohani, M., Lacy, T., & Alday, N.
(2006).
Structural Testing of an Ultralight UAV Composite Wing. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.
3403-3412.
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Lacy, T. E., Samarah, I. K., & Tomblin, J. S.
(2002).
Damage Resistance Characterization of Sandwich Composites Using Response Surfaces. SAE Technical Papers.
-
Cope, D., & Lacy, T.
(2000).
Stress intensity determination in lap joints with mechanical fasteners
-
Cope, D. A., & Lacy, T. E.
(2000).
Stress intensity determination in lap joints with mechanical fasteners. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.
274-283.
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Intardonato, M. J., Hay, M. K., Davis, S., Lukasik, G., Rogers, J., Lacy, T. E., & Kulatilaka, W. D.
(2024).
MHz-Rate Spectroscopic Investigation of Hypervelocity Impacts on Metal Targets
-
institutional repository document
-
Gharghabi, P., Lee, J., Colmer, T., Mazzola, M. S., Lacy, T. E., & Kluss, J.
(2018).
Investigating the Composite/Metal Interface and its Influence on the Electrical Resistance Measurement
-
Gharghabi, P., Lee, J., Mazzola, M. S., & Lacy, T. E.
(2016).
Development of an Experimental Setup to Analyze Carbon/Epoxy Composite Subjected to Current Impulses
-
Gharghabi, P., Lee, J., Colmer, T., Mazzola, M. S., Lacy, T. E., & Kluss, J.
(2018).
Investigating the Composite/Metal Interface and its Influence on the Electrical Resistance Measurement
-
report
-
D'Souza, K., Lyons, T., Lacy, T., & Kota, K. R.
(2017).
Volume IV: UAS Airborne Collision Severity Evaluation: Engine Ingestion
-
Olivares, G., Lacy, T., Gomez, L., Espinosa de los Monteros, J., Baldridge, R. J., Zinzuwadia, C., ... Jayakody, N.
(2017).
UAS Airborne Collision Severity Evaluation: Executive Summary Structural Evaluation
-
D'Souza, K., Lyons, T., Lacy, T., & Kota, K. R.
(2017).
Volume IV: UAS Airborne Collision Severity Evaluation: Engine Ingestion
Teaching
teaching activities
- MEEN225 Engineering Mechanics Instructor
- MEEN368 Solid Mech In Mec Design Instructor
- MEEN444 Fin Elmt Anl Mech Engr Instructor
- MEEN471 Elem Of Comp Materials Instructor
- MEEN489 Sptp: Solid Mech Instructor
- MEEN491 Hnr-research Instructor
- MEEN608 Continuum Mechanics Instructor
- MEEN672 Intro Finite Elements Instructor
- MEEN684 Professional Internship Instructor
- MEEN684 Professional Internship Instructor
- MEEN685 Directed Studies Instructor
- MEEN686 Composites Processing Instructor
- MEEN689 Sptp: Mech Of Fract & Fatigue Instructor
- MEEN691 Research Instructor
Background
education and training
- Ph.D. in Mechanical Engineering, Georgia Institute of Technology - (Atlanta, Georgia, United States) 1998
- M.S. in Mechanical Engineering, Georgia Institute of Technology - (Atlanta, Georgia, United States) 1992
- B.S. in Mechanical Engineering, University of New Mexico - (Albuquerque, New Mexico, United States) 1983
Contact
first name
- Thomas
has last name
- Lacy
Other
- telacyjr@tamu.edu