Analysis of interface granularity in discontinuous fiber composites Academic Article

abstract

• The state-of-the-art in carbon-nanotube/polymer composites produces only moderate increases in modulus and strength over the performance of neat polymers. The nanotube/polymer interface is granular; therefore, models and concepts based on the continuum assumption may no longer apply. This study uses the finite element method to demonstrate the effect of a granular interface in a discontinuous-fiber/polymer composite. Three strategies for bonding are considered, and modulus distribution and effective composite moduli are obtained. It is found that both the shape of the interface-distribution and the total bond density control the effective modulus of the composite. Results imply that it should be beneficial to increase the number of bonding sites, even if that degrades the fiber's modulus, because the optimum composite modulus might be higher because of better load transfer to the fiber. VSP 2005.

authors

• Creasy, Terry

published proceedings

• JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY

author list (cited authors)

• Suryanarayan, S., & Creasy, T. S.

citation count

• 0

complete list of authors

• Suryanarayan, S||Creasy, TS

publication date

• January 2005

publisher

• Taylor & Francis  Publisher

published in

• Journal of Adhesion Science and Technology  Journal

keywords

• Composite
• Continuum
• Discontinuous Fiber
• Interface
• Modulus

Digital Object Identifier (DOI)

• 10.1163/156856105774429118

start page

• 1175

end page

• 1188

volume

• 19

issue

• 13-14

URL

• http%3A%2F%2Fdx.doi.org%2F10.1163%2F156856105774429118