Open Access

ARTICLE

Three-Dimensional Unsteady Thermal Stress Analysis by Triple-Reciprocity Boundary Element Method

by Yoshihiro Ochiai¹, Vladimir Sladek², Jan Sladek²

1 Kinki University, Dept. of Mechanical Engineering, 3-4-1 Kowakae, Higashi-Osaka, Osaka, 577-8502 Japan, E-mail: ochiai@mech.kindai.ac.jp
2 Institute of Construction and Architecture, Slovak Academy of Science, 845 03 Bratislava, Slovakia

Computer Modeling in Engineering & Sciences 2012, 87(1), 41-54. https://doi.org/10.3970/cmes.2012.087.041

Abstract

The conventional boundary element method (BEM) requires a domain integral in unsteady thermal stress analysis with heat generation or an initial temperature distribution. In this paper it is shown that the three-dimensional unsteady thermal stress problem can be solved effectively using the triple-reciprocity boundary element method without internal cells. In this method, the distributions of heat generation and initial temperature are interpolated using integral equations and time-dependent fundamental solutions are used. A new computer program was developed and applied to solving several problems.

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Keywords

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