|Title:||BEM analysis of thin structures for thermoelastic problems||Authors:||Yao-Ming Zhang
|Keywords:||BEM;Singular integral;Nearly singular integral;Thermoelastic problem;Thin structure problem||Issue Date:||Feb-2013||Publisher:||ScienceDirect||Journal Volume:||37||Journal Issue:||2||Start page/Pages:||441-452||Source:||Engineering Analysis with Boundary Elements||Abstract:||
A new boundary element method is developed for solving thin-body thermoelastic problems in this paper. Firstly, the novel regularized boundary integral equations (BIEs) containing indirect unknowns are proposed to cancel the singularity of fundamental solutions. Secondly, a general nonlinear transformation available for high-order geometry elements is introduced in order to remove or damp out the near singularity of fundamental solutions, which is crucial for accurate solutions of thin-body problems. Finally, the domain integrals arising in both displacement and its derivative integral equations, caused by the thermal loads, are regularized using a semi-analytical technique. Six benchmark examples are examined. Results indicate that the proposed method is accurate, convergent and computationally efficient. The proposed method is a competitive alternative to existing methods for solving thin-walled thermoelastic problems.
|Appears in Collections:||河海工程學系|
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