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Journal of Composite Materials
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Finite Element Simulation of the Fiber– Matrix Debonding in Polymer Composites Produced by a Sliding Indentor: Part II – Parallel and Anti-Parallel Fiber Orientation

Tibor Goda

Institute of Machine Design, Budapest University of Technology and Economics, H-1111 Budapest, Müegyetem rkp. 3., Hungary

KÁroly VÁradi

Institute of Machine Design, Budapest University of Technology and Economics, H-1111 Budapest, Müegyetem rkp. 3., Hungaryvaradik{at}eik.bme.hu

Bernd Wetzel

Klaus Friedrich

Institut für Verbundwerkstoffe (IVW GmbH), University of Kaiserslautern, D-67663 Kaiserslautern, Erwin-Schrödinger Str. Geb. 58, Germany

A debonding simulation technique, based on a series of nonlinear FE evaluations, has been developed to study the contact behavior and the debonding process of unidirectional fiber-reinforced polymer composites subjected to a sliding diamond indentor. In Part I, the normal fiber orientation was studied, while in Part II, the parallel and anti-parallel fiber orientations relative to the sliding direction are analyzed. The technique developed can consider both the shear and the tension type debonding events, and also the effect of friction causing limited debonding. The results show a dominant limited shear type debonding under compression for both fiber orientations.

Key Words: fiber–matrix debonding • polymer composites • finite element analysis

Journal of Composite Materials, Vol. 38, No. 18, 1607-1618 (2004)
DOI: 10.1177/0021998304043760
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