Affiliation:
1. Department of Engineering Science and Mechanics Virginia Polytechnic Institute and State University Blacksburg, Virginia 24061
Abstract
A criterion for predicting the direction of crack extension in orthotropic composite materials is presented. The criterion is based upon the normal stress and the anisotropic tensile strength on arbitrary planes about the tip of a crack. Results are ob tained, via finite element solutions, for: (a.) isotropic mixed mode fracture, (b.) cracks in unidirectional off-axis slotted composite tensile coupons and (c.) cracks in cross plied laminates. Comparisons are made with other theories and experimental results.
Subject
Materials Chemistry,Mechanical Engineering,Mechanics of Materials,Ceramics and Composites
Reference12 articles.
1. Material Characterization on the Fracture of Filament-Reinforced Composites
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3. Buczek, M.B. and Herakovich, C.T. "Prediction of the Direction of Crack Growth in Fibrous Composites," Mechanics of Composite Materials, (Dvorak, ed.), ASME AMD 58, Am. Soc. Mech. Engr., p. 75 (1983).
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86 articles.
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