HR job title
- Assistant Professor
- Contact Info
- 4097404526
Paredes Tobar, Lenin Assistant Professor
Positions
- Assistant Professor, Ocean Engineering, College of Engineering
Marcelo Paredes is an assistant professor in Ocean Engineering Department at Texas A&M University. Paredes joined TAMU after five years at MIT as a research scientist in the Impact and Crashworthiness Laboratory (ICL). Paredes obtained his Ph.D. in 2012 from University of Sao Paulo (USP) in the area of fracture mechanics. His research interests lie in the interface of physics and mechanics to develop predictive analytical and numerical models for solid materials (e.g. metals) with special application to ductile crack propagation in thick-walled components and stress corrosion cracking assessment and ductile-to-brittle transition behavior.
Research Areas
- Overview
- Publications
- Teaching
- Works By Students
- Background
- Contact
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Overview
Publications
selected publications
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academic article
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Xue, L., Cai, W., Sun, Y., Paredes, M., Sun, C., & Bai, Y.
(2024).
The influence of heat treatment on microstructure and mechanical response of a newly developed non-equimolar AlCrCuFeNi high-entropy alloy: Experiments and numerical modeling. Materials Characterization.
207, 113544-113544.
-
Ruggieri, C., Sarzosa, D., & Paredes, M.
(2023).
A local stress criterion to assess the effects of hydrogen embrittlement on the fracture strength of notched tensile specimens. Theoretical and Applied Fracture Mechanics.
127, 104045-104045.
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Li, Y., Sakonder, C., & Paredes, M.
(2023).
Plastic collapse analysis in multiaxially loaded defective pipe specimens at different temperatures. 3(1), 100092-100092.
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Xue, L., Ding, Y., Pradeep, K. G., Case, R., Castaneda, H., & Paredes, M.
(2022).
Development of a non-equimolar AlCrCuFeNi high-entropy alloy and its corrosive response to marine environment under different temperatures and chloride concentrations. Journal of Alloys and Compounds.
928, 167112-167112.
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Xue, L., Ding, Y., Pradeep, K. G., Case, R., Castaneda, H., & Paredes, M.
(2022).
The grain size effect on corrosion property of Al2Cr5Cu5Fe53Ni35 high-entropy alloy in marine environment. Corrosion Science.
208, 110625-110625.
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Sarzosa, D., Paredes, M., Savioli, R., Ruggieri, C., Leite, L., da Silva, N. S., & Garmbis, A. G.
(2022).
Experimental and numerical study on the ductile fracture response of X65 girth-welded joint made of Inconel 625 alloy. Theoretical and Applied Fracture Mechanics.
121, 103533-103533.
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Santos, I., Sarzosa, D., & Paredes, M.
(2022).
Ductile fracture modeling using the modified Mohr-Coulomb model coupled with a softening law for an ASTM A285 steel. Thin Walled Structures.
176, 109341-109341.
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Sakonder, C., Xue, L., Paredes, M., Savioli, R., & Sarzosa, D.
(2022).
Directional dependence of critical axial strain in X65 pipeline steel subject to combined internal pressure and bending loading. International Journal of Pressure Vessels and Piping.
196, 104610-104610.
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Xue, L., Keim, V., Paredes, M., Nonn, A., & Wierzbicki, T.
(2021).
Anisotropic effects on crack propagation in pressurized line pipes under running ductile fracture scenarios. Engineering Fracture Mechanics.
249, 107748-107748.
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Paredes, M., & Wierzbicki, T.
(2020).
On mechanical response of Zircaloy-4 under a wider range of stress states: From uniaxial tension to uniaxial compression. International Journal of Solids and Structures.
206, 198-223.
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Keim, V., Paredes, M., Nonn, A., & Muenstermann, S.
(2020).
FSI-simulation of ductile fracture propagation and arrest in pipelines: Comparison with existing data of full-scale burst tests. International Journal of Pressure Vessels and Piping.
182, 104067-104067.
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Paredes, M., Grolleau, V., & Wierzbicki, T.
(2020).
On ductile fracture of 316L stainless steels at room and cryogenic temperature level: An engineering approach to determine material parameters. Materialia.
10, 100624-100624.
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Paredes, M., Lian, J., Wierzbicki, T., Cristea, M. E., Muenstermann, S., & Darcis, P.
(2018).
Modeling of plasticity and fracture behavior of X65 steels: seam weld and seamless pipes. INTERNATIONAL JOURNAL OF FRACTURE.
213(1), 17-36.
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Paredes, M., Sarzosa, D., Savioli, R., Wierzbicki, T., Jeong, D. Y., & Tyrell, D. C.
(2018).
Ductile tearing analysis of TC128 tank car steel under mode I loading condition. Theoretical and Applied Fracture Mechanics.
96, 658-675.
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Paredes, M., Wierzbicki, T., & Zelenak, P.
(2016).
Prediction of crack initiation and propagation in X70 pipeline steels. Engineering Fracture Mechanics.
168, 92-111.
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Qian, L., Paredes, M., Wierzbicki, T., Sparrer, Y., Feuerstein, M., Zeng, P., & Fang, G.
(2016).
Experimental and numerical study on shear-punch test of 6060 T6 extruded aluminum profile. International Journal of Mechanical Sciences.
118, 205-218.
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Bardadyn, M., Paredes, M., Wrobel, M., Paradowski, K., Zagrski, A., & Kurzydowski, K. J.
(2016).
New Environmentally Friendly Solutions to Prevent Oil Pipelines Disasters. Applied Mechanics and Materials.
797, 334-344.
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Paredes, M., Wierzbicki, T., & Roth, C. C.
(2015).
Three dimensional, flexural-torsional dynamic buckling of long wires after tensile fracture and implications on deep water riser dynamics. International Journal of Impact Engineering.
86, 27-39.
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Paredes, M., & Ruggieri, C.
(2015).
Engineering approach for circumferential flaws in girth weld pipes subjected to bending load. International Journal of Pressure Vessels and Piping.
125, 49-65.
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Paredes, M.
(2014).
Plastic limit load and its application to the fracture toughness testing for heterogeneous single edge notch tension specimens. Fatigue & Fracture of Engineering Materials & Structures (FFEMS).
37(3), 265-279.
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Paredes, M., & Ruggieri, C.
(2012).
Further results in J and CTOD estimation procedures for SE(T) fracture specimens - Part II: Weld centerline cracks. 89, 24-39.
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Xue, L., Cai, W., Sun, Y., Paredes, M., Sun, C., & Bai, Y.
(2024).
The influence of heat treatment on microstructure and mechanical response of a newly developed non-equimolar AlCrCuFeNi high-entropy alloy: Experiments and numerical modeling. Materials Characterization.
207, 113544-113544.
-
conference paper
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Paredes Tobar, L. M., Sarzosa, D., & Ruggieri, C.
(2023).
Effects of hydrogen embrittlement on the fracture strength of notched tensile specimens: An Engineering Approach
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Esmacher, O., Narayanan, D., Paredes, M., & Castaneda, H.
(2023).
Corrosion Behavior Assessment and Comparison of UNS S31603 Stainless Steel, Nickel-Titanium Shape Memory Alloy, and Al2Cr5Cu5Fe53Ni35 High-Entropy Alloy in Biomedical Environments. AMPP-2023-19413.
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Paredes, M.
(2023).
High Entropy Alloys as a New Alternative to Corrosion-Resistant Alloys For Marine Applications
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Sakonder, C., & Paredes, M.
(2022).
Selective Patterns for Circular Dimples Distribution As a Means to Enhance Structural Mechanical Response of Tubular Components
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Li, Y., & Paredes, M.
(2022).
Numerical Investigation of Ductile Crack Propagation of Circumferentially Cracked Pipes Subjected to Multiaxial Loading at Room and Low Temperatures
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Paredes, M.
(2022).
Modeling Aspects of Running Ductile Fracture Propagation in High Pressure Line Pipes
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Sakonder, C., & Paredes, M.
(2020).
ANISOTROPIC EFFECT ON DUCTILE CRACK GROWTH OF PRESSURIZED PIPES UNDER FULLY BENDING MOMENT
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Fudlailah, P., & Paredes, M.
(2020).
Fracture Behavior of X65 Q&T Seamless Pipeline Steel Under Different Strain Rates and Stress States
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Xue, L., Paredes, M., Nonn, A., & Wierzbicki, T.
(2020).
Modeling of Crack Propagation in Defective X100 Line Pipes
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Nonn, A., Paredes, M., Keim, V., & Wierzbicki, T.
(2018).
COMPARISON OF FRACTURE MODELS TO QUANTIFY THE EFFECTS OF MATERIAL PLASTICITY ON THE DUCTILE FRACTURE PROPAGATION IN PIPELINES. v003t05a005-v003t05a005.
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Paredes, M., Zelenak, P., & Wierzbicki, T.
(2017).
A NUMERICAL STUDY ON CRACK GROWTH RESISTANCE CURVE OF X70 STEELS. ASME -Publications- Pvp.
v06bt06a048-v06bt06a048.
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Nonn, A., Paredes, M., Nordhagen, H. O., Munkejord, S. T., & Wierzbicki, T.
(2017).
Challenges in fluid-structure modeling of crack propagation and arrest in modern steel pipelines. 374-375.
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Paredes, M., & Wierzbicki, T.
(2015).
Fracture Behavior of Pressurized Defective Pipes Subjected to Large Tensile Strains. v06bt06a042-v06bt06a042.
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Paredes, M., & Wierzbicki, T.
(2015).
Strain Capacity of X70 Pipeline Steel Subjected to Biaxial Loading Condition. v05bt04a021-v05bt04a021.
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Paredes, M., & Wierzbicki, T.
(2015).
Effect of internal pressure on tensile strain capacity and constraint of defective pipes using damage model. Proceedings of the International Offshore and Polar Engineering Conference.
573-582.
-
Paredes, M., & Wierzbicki, T.
(2015).
FRACTURE BEHAVIOR OF PRESSURIZED DEFECTIVE PIPES SUBJECTED TO LARGE TENSILE STRAINS. ASME -Publications- Pvp.
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Paredes, M., & Wierzbicki, T.
(2015).
STRAIN CAPACITY OF X70 PIPELINE STEEL SUBJECTED TO BIAXIAL LOADING CONDITION
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Paredes, M., & Ruggieri, C.
(2012).
Effects of weld strength mismatch on crack driving forces for circumferential surface crack in pipes under bending. Proceedings of the International Offshore and Polar Engineering Conference.
536-543.
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Mathias, L., Burgos, D., Donato, G., Paredes, M., & Ruggieri, C.
(2012).
CRACK GROWTH TESTING OF AN X80 PIPELINE GIRTH WELD USING SE(T) AND SE(B) FRACTURE SPECIMENS. 43-53.
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Paredes, M., & Ruggieri, C.
(2011).
EFFECTS OF WELD STRENGTH MISMATCH ON J AND CTOD ESTIMATION PROCEDURES FOR SENT FRACTURE SPECIMENS BASED ON PLASTIC ETA-FACTORS. 201-211.
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Paredes, M., & Ruggieri, C.
(2011).
J and CTOD fracture toughness estimation using sent specimens with mismatched welds. Rio Pipeline Conference and Exposition, Technical Papers.
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Paredes Tobar, L. M., Sarzosa, D., & Ruggieri, C.
(2023).
Effects of hydrogen embrittlement on the fracture strength of notched tensile specimens: An Engineering Approach
-
institutional repository document
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Paredes, M., Li, Y., & Sakonder, C.
(2022).
Plastic Collapse Analysis in Multiaxially Loaded Defective Pipe Specimens at Different Temperatures
-
Paredes, M., Li, Y., & Sakonder, C.
(2022).
Plastic Collapse Analysis in Multiaxially Loaded Defective Pipe Specimens at Different Temperatures
Teaching
teaching activities
- CVEN345 Theory Of Structures - Gv Instructor
- CVEN446 Struc Steel Design Instructor
- CVEN446 Struc Steel Design Instructor
- OCEN345 Theory Ocean Engr Structures Instructor
- OCEN361 Applied Numerical Methods - Gv Instructor
- OCEN399 Leadership And Experience Instructor
- OCEN491 Hnr-research Instructor
- OCEN681 Seminar Instructor
- OCEN684 Professional Internship Instructor
- OCEN685 Directed Studies - Gv Instructor
- OCEN689 Sptp: Mech Engr Structures Instructor
- OCEN689 Sptp: Mech Of Ocean Structures Instructor
- OCEN689 Sptp:mech Engr Structures Instructor
- OCEN691 Research Instructor
- OCEN691 Research-gv Instructor
- OCEN691 Research-gv Instructor
Works By Students
chaired theses and dissertations
Background
education and training
- D.Sc. in Ocean and Naval Engineering, University of Sao Paulo - (São Paulo, Brazil) 2012
- B.Sc. in Naval Engineering, Escuela Superior Politecnica del Litoral - (Guayaquil, Ecuador) 2004
Contact
first name
- Lenin
has last name
- Paredes Tobar
mailing address
-
200 Seawolf Parkway
PMEC 117
Galveston, Texas 77554
USA
Other
In the News
- lparedes@tamu.edu