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A new time domain boundary element formulation for generalized dynamic coupled thermoelasticity

Authors
Journal
Engineering Analysis with Boundary Elements
0955-7997
Publisher
Elsevier
Publication Date
Volume
22
Issue
2
Identifiers
DOI: 10.1016/s0955-7997(98)00043-5

Abstract

Abstract A new time domain boundary element formulation and solution procedure for generalized dynamic coupled thermoelasticity is developed. Velocity and acceleration terms in the governig equations are replaced by finite difference type expressions according to the implicit time integration scheme of Wilson θ and the resulting static-like equations are written in integral form in conjuction with (a) the elastostatic and steady-state heat conduction fundamental solutions and (b) the frequency domain fundamental solution pair of coupled thermoelasticity. In both cases boundary and interior domain discretization are necessary. Both of these formulations result in the same matrix equation form and the solution is obtained by a stepwise marching in time procedure.

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