Calculation of the Ultimate State of Reinforced Plastics and Unoriented Polymers in Asymmetric High-Cycle Tension–Compression |
| |
Authors: | Golub V. P. Krizhanovskii V. I. Pogrebniak A. D. |
| |
Affiliation: | (1) Timoshenko Institute of Mechanics, Ukrainian National Academy of Sciences, Kiev, Ukraine |
| |
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. |
| |
Keywords: | reinforced plastics unoriented polymers high-cycle loading asymmetric cycle fatigue failure stress range diagrams fatigue life |
本文献已被 SpringerLink 等数据库收录! |