ISSN: 0884-6804
Page Count: 4

Generic Aspects of Three-Dimensional Internal-Damage Development in Fatigue-Loaded Composite Laminates
Reifsnider, KL
Materials Response Group, Virginia Polytechnic Institute and State University, VA

Abstract

Fatigue loading is a common and important engineering problem in applications involving loads that vary in amplitude with time. Cyclic loads, a common type of variable load, can be characterized as cyclic stress amplitudes superimposed on “steady” stresses. It is well known that fatigue-load amplitudes of roughly half the ultimate strength of a given material can cause the material to fail after a large number (on the order of 10⁶) of load cycles. The weakness of such a loaded material indicates a corresponding degree of damage development. The amount of damage and its consequences must be great to reduce the strength of long-life specimens to the low level of applied stress corresponding to most engineering applications.

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Paper ID: CTR10796J
DOI: 10.1520/CTR10796J
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