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Multiscale Fatigue Modeling of Composite Materials

PAUL DAVIDSON, ARMANJ HASANYAN, ANTHONY M. WAAS

Abstract


In this paper an experimental procedure for determining the in-situ matrix response in fatigue, to be used in a micro-mechanics framework, is described. The procedure utilizes only a [±45] tensile test to back out complete equivalent matrix stress-strain behavior. Quasi-static tests on interrupted fatigue tests were conducted to obtain equivalent matrix response as a function of number of cycles and stress ratio. The result of the test procedure is an easy to implement formulation of the in-situ matrix response, in a multi-scale modeling framework.


DOI
10.12783/asc34/31283

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