Author: Golub V. P. Krizhanovskii V. I. Pogrebniak A. D.
Publisher: Springer Publishing Company
ISSN: 0191-5665
Source: Mechanics of Composite Materials, Vol.40, Iss.1, 2004-01, pp. : 45-56
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Abstract
The fatigue failure of reinforced plastics and unoriented polymers under a joint action of static and high-cycle loadings is considered. The fatigue failure strength is estimated from stress range diagrams with a static tensile component. The models of ultimate state are constructed based on the hypothesis of existence of a unified ultimate diagram invariant with respect to the number of cycles to failure. The unified diagram is given by a transcendental power function whose exponent characterizes the sensitivity of the material to the stress-cycle asymmetry. The models of ultimate state make it possible to span practically all forms of ultimate diagrams of composite and polymer materials, including concave, rectilinear, S-shaped, and convex ones.
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