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REVIEW ARTICLES: Failure of Composite Materials

Probabilistic Perspective on the Failure of Composite Laminae

[+] Author and Article Information
J. M. Duva, E. J. Lang, F. Mirzadeh, C. T. Herakovich

Applied Mechanics Program, School of Engineering and Applied Science, University of Virginia, Charlottesville, VA 22903-2442, USA

Appl. Mech. Rev 43(5S), S288-S293 (May 01, 1990) doi:10.1115/1.3120830 History: Online April 30, 2009

Abstract

A probabilistic approach is presented for predicting the applied stress at failure for notched and unnotched unidirectional brittle matrix fibrous composites. It is assumed that failure is caused by the transverse normal stress alone. The mean value of the applied stress at failure can be calculated for any test coupon once the distribution of the transverse normal stress is known. Results are presented for axial and transverse tensile loading of notched coupons and transverse tensile loading of unnotched coupons. The widely observed linear ln–ln relationship between applied stress at failure and notch size is predicted.

Copyright © 1990 by American Society of Mechanical Engineers
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