Experimental–theoretical study of high-cycle failure of structural elements of VZh-159 alloy

Abstract

The results of an experimental–theoretical investigation of high-cycle fatigue of a VZh-159 alloy at a temperature of 850°C are represented. A model and algorithm for the prediction of fatigue damages are proposed, which, with respect to relationships of damaged-medium mechanics, permit the simulation of processes of high-cycle structural failure subject to general factors affecting the cyclic strength of structural material. The results of the numerical simulation of high-cycle failure of structural elements are given that verify the working capacity of the proposed model, algorithms, and software environment developed based on it.