時間ステップ境界要素法による二次元非定常熱弾性解析

概要

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This paper is concerned with a new boundary element approach based on the time-stepping scheme for two-dimensional thermoelasticity in unsteady heat conduction states. The uncoupling is assumed for the temperature and displacement fields. The time derivative in the differential equations is approximated by the time-stepping scheme. The reduced differential equations are transformed into a set of boundary integral equations by using the exact fundamental solutions which can be derived by the Hormander method. The standard boundary element method is applied to obtain numerical solutions at each time step. Computation is started from the initial state, and advanced by a time-marching procedure until the final state is realized. The mathematical formulation is presented in detail. The proposed solution procedure is applied to some example problems, whereby its potential usefulness is demonstrated.
一般社団法人日本機械学会の論文
1991-12-25