𝔖 Bobbio Scriptorium
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Modeling fracture of resin matrix composites

✍ Scribed by Carl T. Herakovich

Publisher
Society for Plastic Engineers
Year
1990
Tongue
English
Weight
667 KB
Volume
11
Category
Article
ISSN
0272-8397

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✦ Synopsis

Abstract

Characteristics of the fracture of resin matrix fibrous composites are discussed with emphasis on the physical parameters influencing fracture and the requirements of a suitable model for predicting crack growth. The influences of notch geometry, fiber orientation, specimen geometry, and far field loading on crack growth in unidirectional resin matrix composites are discussed. The normal stress ratio theory is reviewed and its applicability for crack initiation in unidirectional resin matrix composites is considered. Experimental results from a variety of tests on resin matrix composites are reviewed and compared with theoretical predictions. It is shown that the normal stress ratio theory correctly predicts the initiation site and direction of crack growth from an existing notch. Predictions of critical stress are less consistent being quite accurate in some cases, but less accurate in others.

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