Second-order two-scale finite element algorithm for dynamic thermo-mechanical coupling problem in symmetric structure
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- 作者：Zhi-Hui Lia ; b ; zhli0097@x263.net" class="auth_mail" title="E-mail the corresponding author ; Qiang Maa ; b ; Junzhi Cuic
- 关键词：Second-order two-scale asymptotic expansion ; Finite-element algorithm ; Dynamic thermo&ndash ; mechanical coupling problem ; Axisymmetric and spherical symmetric structure ; Periodic configuration
- 刊名：Journal of Computational Physics
- 出版年：2016
- 出版时间：1 June 2016
- 年：2016
- 卷：314
- 期：Complete
- 页码：712-748
- 全文大小：3359 K
文摘
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Second-order two-scale (SOTS) expansions for dynamic thermo–mechanical coupling problems in symmetric structure are obtained.
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SOTS finite element algorithm is proposed and unconditional stable implicit scheme is established.
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Anisotropic material is obtained by homogenization with enhanced strength and minor thermal expansion in circumferential direction.
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The mutual interaction and simultaneous vibration of the temperature and displacement field are simulated.
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A new computational tool is presented for analyzing thermo–mechanical response of composites under strong aerothermodynamic environment.