A Multiscale Computational Formulation for Gradient Elasticity Problems of Heterogeneous Structures
A Multiscale Computational Formulation for Gradient Elasticity Problems of Heterogeneous Structures
复制标题
异质结构梯度弹性问题的多尺度计算公式
DOI:
10.1142/s0219876216500304
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发表时间:
2016-08
影响因子:
1.7
通讯作者:
Xu Yuanjie
中科院分区:
文献类型:
--
作者:
Fu Ping;Liu Hui;Chu Xihua;Xu Yuanjie
In this paper, a multiscale computational formulation is developed for modeling two- and three-dimensional gradient elasticity behaviors of heterogeneous structures. To capture the microscopic properties at the macroscopic level effectively, a numerical multiscale interpolation function of coarse element is constructed by employing the oversampling element technique based on the staggered gradient elasticity scheme. By virtue of these functions, the equivalent quantities of the coarse element could be obtained easily, resulting in that the material microscopic characteristics are reflected to the macroscopic scale. Consequently, the displacement field of the original boundary value problem could be calculated at the macroscopic level, and the corresponding microscopic gradient-enriched solutions could also be evaluated by adopting the downscaling computation on the sub-grids of each coarse element domain, which will reduce the computational cost significantly. Furthermore, several representative numerical experiments are performed to demonstrate the validity and efficiency of the proposed multiscale formulation.
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DOI:
10.1002/nag.2296
发表时间:
2015-01
影响因子:
4
作者:
Zhang H.W.;Lu M.K.;Zheng Y.G.;Zhang S.
通讯作者:
Zhang S.
DOI:
--
发表时间:
2010-07
期刊:
--
影响因子:
--
作者:
V. monchiet;G. Bonnet
通讯作者:
V. monchiet;G. Bonnet
影响因子:
3.3
作者:
Liu H.;Zhang L.;Yang D.S.;Zhang H.W.
通讯作者:
Zhang H.W.
DOI:
10.1016/s0045-7825(01)00353-x
发表时间:
2002-01-01
影响因子:
7.2
作者:
Amanatidou, E;Aravas, N
通讯作者:
Aravas, N
影响因子:
6.3
作者:
Y.F. Xing;C.Y. Du
通讯作者:
C.Y. Du