Affiliation:
1. Engineering Science and Mechanics Department Virginia Polytechnic Institute and State University Blacksburg, Virginia 24061
Abstract
Stiffness reductions, resulting from fatigue damage, were measured for unnotched [±45]s, [0/90] s, and [0/90/ ±45 ] s boron/epoxy laminates. Deg radation in the various in-plane stiffnesses (Exx, Byy, Gxy) were measured using a combination of uniaxial tension, rail shear, and flexure tests. An attempt was made to predict stiffness loss at failure from a secant modulus criterion. Damage growth and stiffness loss were load-history dependent, hence, the secant modulus criterion is not a valid criterion for general application.
Subject
Materials Chemistry,Mechanical Engineering,Mechanics of Materials,Ceramics and Composites
Cited by
101 articles.
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