Stress Field Around Interface Free Edge of Elastic/Elastic-Plastic Material Joints

Abstract

Characteristics of singular stress field around an interface free edge between elastic and elastic-plastic materials, especially for the ceramic/metal joints with a interlayer were investigated theoretically. Finite element simulations have also been conducted to accomplish the quantitative examinations of the theoretical results. Elastic/linear hardening predictions and elastic/power-law hardening predictions were considered in the analysis. The simulation results of stress distribution clearly showed that the singular fields exist around the interface free edge between the elastic and elastic-plastic materials. Variables separable form functions of stress distribution were examined around the interface free edge. The availability of the elastic/linear hardening materials interface edge prediction was discussed.