An improved multiscale eigenelement method of periodical composite structures

An improved multiscale eigenelement method of periodical composite structures
复制标题

改进的周期复合结构多尺度特征元法

DOI:
10.1016/j.compstruct.2014.07.035
复制
发表时间:
2014-12
影响因子:
6.3
通讯作者:
C.Y. Du
C.Y. Du
中科院分区:
工程技术1区
文献类型:
--
作者:
Y.F. Xing;C.Y. Du

文献摘要

参考文献

被引文献

相似文献

多尺度特征元方法(MEM)是基于特征向量展开法和子结构方法提出的。利用摄动的思想,提出了两种提高多尺度特征元方法精度的方法。一种方法是从单胞的微观模型中选取几个内部节点作为特征元的附加宏节点,另一种方法是在特征元的位移函数中考虑固支单胞的第一阶振型。比较了MEM方法与渐近展开均匀化方法的计算量。通过数值比较,验证了改进的MEM对静力和动力问题的高精度。
Multiscale eigenelement method (MEM) proposed by the authors and co-workers is based on the eigenvector expansion method and substructure approach. Using the idea of perturbation, two methods are proposed to improve the accuracy of the multiscale eigenelement method. One method is choosing a few interior nodes from the micro model of unit cell as additional macro nodes of eigenelement; the other is taking the firstmmodes of the unit cell with clamped edges into account in the displacement functions of eigenelement. The computational cost of MEM is compared with that of asymptotic expansion homogenization method. Numerical comparisons are conducted to validate the high accuracy of the improved MEM for static and dynamic problems.
DOI: 10.1016/j.cam.2007.04.041
发表时间: 2008-08
影响因子: 2.4
作者:
I. Babuska;V. Nistor;Nicolae Ţarfulea
通讯作者: I. Babuska;V. Nistor;Nicolae Ţarfulea
DOI: 10.1090/s0025-5718-06-01909-0
发表时间: 2007
期刊: Math. Comput.
影响因子: --
作者:
通讯作者: --
DOI: 10.1016/j.compstruct.2009.08.006
发表时间: 2010-08
影响因子: 6.3
作者:
Y. Xing;Ying Yang;Xiaodong Wang
通讯作者: Y. Xing;Ying Yang;Xiaodong Wang
DOI: 10.1016/j.compstruct.2010.08.029
发表时间: 2011
影响因子: 6.3
作者:
Y. Xing;Ying Yang
通讯作者: Y. Xing;Ying Yang
DOI: 10.1016/s0045-7825(01)00188-8
发表时间: 2001-05
影响因子: 7.2
作者:
T. Strouboulis;K. Copps;I. Babuska
通讯作者: T. Strouboulis;K. Copps;I. Babuska