Journal
INTERNATIONAL JOURNAL OF FATIGUE
Volume 26, Issue 6, Pages 597-604Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijfatigue.2003.10.016
Keywords
polymer matrix composites; delamination; fatigue crack growth; fatigue modelling
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An empirical model is proposed for the stress ratio effect on the fatigue delamination growth rate in composite laminates under single-mode loading, intending to provide a simple and accurate description tool in engineering application. The model is based on heuristic considerations of damage accumulation ahead of the crack. Linear cumulative assumption is used for damage estimation. Comparison of the prediction based on the proposed model with the test results for different carbon, glass, and alumina fibre-reinforced composites at several stress ratios shows reasonable agreement. (C) 2003 Elsevier Ltd. All rights reserved.
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