Singular Stress Field in Jointed Materials due to Thermal Residual Stress.

Abstract

In this paper, a simple method for analyzing the singular thermal stress field near the corner tip in jointed materials caused by the thermal mismatch of different moduli was developed. It is found that the singular thermal stress fields can be replaced by the singular elastic stress fields caused by biaxial tension. This finding enables us to obtain the stress intensity factors of a singular thermal stress field from the available data on the stress intensity factors of a singular elastic stress field caused by biaxial tension.