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线弹性问题的异质多尺度双线性有限元法

Heterogeneous multiscale bilinear finite element method for linear elasticity problems
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摘要 作者研究了多尺度线弹性问题的异质多尺度方法.在异质多尺度方法的一般框架下,作者首先采用双线性有限元进行宏观求解,得到位移的先验误差估计;然后考虑了微观单胞问题的数值表现,给出了全离散格式的收敛性分析;最后通过数值算例验证了理论结果. This paper is concerned with the heterogeneous multiscale method (HMM ) for multiscale problems in linear elasticity problems .Within the framework of HMM ,the authors choose the bilinear finite element as the macroscopic solver and derive the priori error estimates for the displacement .Then they consider the numerical behavior of the cell problems and give the fully discrete convergence analy-sis .Finally ,some numerical experiments are proposed to verify the theoretical results .
作者 杨成 谢小平
出处 《四川大学学报(自然科学版)》 CAS CSCD 北大核心 2013年第6期1179-1184,共6页 Journal of Sichuan University(Natural Science Edition)
基金 国家自然科学基金(11171239) 四川大学优秀青年学者基金(2011SCU04B28)
关键词 线性弹性问题 异质多尺度方法 双线性有限元 linear elasticity problem, heterogeneous multiscale method, bilinear finite element method
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