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W. Van Paepegem, J. Degrieck, "Numerical Modelling of Fatigue Degradation of Fibre-Reinforced Composite Materials", in B.H.V. Topping, (Editor), "Computational Techniques for Materials, Composites and Composite Structures", Civil-Comp Press, Edinburgh, UK, pp 319-326, 2000. doi:10.4203/ccp.67.8.2

Abstract

Fatigue of fibre-reinforced composite materials is a quite complex phenomenon, and the fatigue behaviour of these heterogeneous materials is fundamentally different from the behaviour exposed by metals. Due to the degradation of the stiffness properties during fatigue life, stresses are continuously redistributed across the composite construction, which is clearly not the case for metals.

This paper presents a new finite element approach to model the fatigue behaviour of fibre-reinforced composite materials as well as the continuous stress redistribution due to the stiffness degradation.

First the bending fatigue setup and the experimental results are discussed. Next a local damage model for stiffness degradation is proposed. This model has been implemented in both a numerical software package (Mathcad^TM) and a commercial finite element code (SAMCEF^TM). The latter implementation proves to be a powerful tool to model the fatigue damage of composites and to predict the residual stiffness of the composite construction as a whole.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 67 COMPUTATIONAL TECHNIQUES FOR MATERIALS, COMPOSITES AND COMPOSITE STRUCTURES Edited by: B.H.V. Topping Paper VIII.2 Numerical Modelling of Fatigue Degradation of Fibre-Reinforced Composite Materials W. Van Paepegem and J. Degrieck Mechanics of Materials and Constructions, Ghent University, Gent, Belgium doi:10.4203/ccp.67.8.2 purchase the full-text of this paper Full Bibliographic Reference for this paper W. Van Paepegem, J. Degrieck, "Numerical Modelling of Fatigue Degradation of Fibre-Reinforced Composite Materials", in B.H.V. Topping, (Editor), "Computational Techniques for Materials, Composites and Composite Structures", Civil-Comp Press, Edinburgh, UK, pp 319-326, 2000. doi:10.4203/ccp.67.8.2 Abstract Fatigue of fibre-reinforced composite materials is a quite complex phenomenon, and the fatigue behaviour of these heterogeneous materials is fundamentally different from the behaviour exposed by metals. Due to the degradation of the stiffness properties during fatigue life, stresses are continuously redistributed across the composite construction, which is clearly not the case for metals. This paper presents a new finite element approach to model the fatigue behaviour of fibre-reinforced composite materials as well as the continuous stress redistribution due to the stiffness degradation. First the bending fatigue setup and the experimental results are discussed. Next a local damage model for stiffness degradation is proposed. This model has been implemented in both a numerical software package (Mathcad^TM) and a commercial finite element code (SAMCEF^TM). The latter implementation proves to be a powerful tool to model the fatigue damage of composites and to predict the residual stiffness of the composite construction as a whole. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £92 +P&P)
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