Growth of Short Fatigue Cracks at Notches in Woven Fiber Glass Reinforced Polymeric Composites

[+] Author and Article Information
S. B. Biner, V. C. Yuhas

Bradley University, Department of Manufacturing, Peoria, Ill. 61625

J. Eng. Mater. Technol 111(4), 363-367 (Oct 01, 1989) (5 pages) doi:10.1115/1.3226480 History: Received February 02, 1988; Revised March 11, 1989; Online September 15, 2009


The fatigue crack initiation and growth characteristics of short cracks emanating from blunt notches with root radius varying from 1.6 to 6.35 mm at various depths in woven fiber-glass reinforced polymeric composites have been investigated. It is demonstrated that the initiation and growth rate of short cracks emanating from blunt notches can be accurately described by an effective stress intensity factor range ΔKeff . The ply orientations studied, did not have any effect on the analysis. The results provide an adequate engineering approach for designing against failure from range of stress concentrations, at least for this composite system.

Copyright © 1989 by ASME
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