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Title
Fatigue damage evolution in laminate composites with balsa wood
Authors
Ion Chincea Anghel Cernescu Liviu Marsavina and Viorel A. Serban
Received
August 3, 2010
Published
Volume 45 Issue 5-6 May-June
Keywords
fatigue damage, stiffness degradation, composite laminate, normalization fatigue life
Abstract
The damage evolution mechanism is one of the most important issues in fatigue behaviour investigation of composite materials, also, it serves as basis for predicting the fatigue life of composite structures for engineering applications. In this paper, the fatigue damage in laminate composites with seven plies of melamine and balsa wood, ? _ ? , was evaluated, based on a phenomenological fatigue damage model ? ?01 m,901 b ,0 b 2,90 b 2 ? ? ?? ??S defined by material stiffness degradation. The results were expressed in terms of fatigue damage parameter as a function of normalized fatigue life, for different stress levels.
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