Application of the Indirect Fictitious-Boundary Integral Method to Thermal Stress Problems

Abstract

This paper describes the applicability of the indirect fictitious-boundary integral method to thermal elastic stress problems with simply-connected regions. As examples, a thermal contact problem of notched bar constrained by two hot rigid surfaces in contact with its both end surfaces, and a thermal stress problem of a wall having a concavity (notch) or convexity (protrusion) on one side and heated on either side are treated. As a result, the isothermal line and the thermal stresses are obtained. The influence of shape parameters on stress distributions is also shown.