Computation of Bounds for Exact Quantities of Interest in Elasticity Based on FEM and SFEM
Computation of Bounds for Exact Quantities of Interest in Elasticity Based on FEM and SFEM
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基于 FEM 和 SFEM 的弹性精确兴趣量界限计算
DOI:
10.1007/978-3-642-11842-5_68
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发表时间:
2009-08
期刊:
影响因子:
--
通讯作者:
宣兆成
中科院分区:
文献类型:
--
作者:
宣兆成
We compute lower and upper bounds for the quantities of interest that are the functions of displacements in elasticity by finite element method (FEM) and smoothed finite element method (SFEM). An important feature of FEM based on the minimum potential energy principle is that it bounds the true strain energy of the structure from below, whereas SFEM, which has been found recently, generally provides bounds from above. We use the two methods to compute outputs–local displacements, local reaction and stress intensity factor in the elastic problems, and find that they do give the lower and upper bounds for the true outputs.
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DOI:
10.1007/978-3-0348-8428-0_8
发表时间:
2000
期刊:
--
影响因子:
--
作者:
M. Chipot
通讯作者:
M. Chipot
DOI:
10.1016/0045-7825(90)90168-l
发表时间:
1990-09
期刊:
Applied Mechanics and Engineering
影响因子:
--
作者:
D. Arnold
通讯作者:
D. Arnold
影响因子:
2.9
作者:
Xuan, Z. C.;Quarteroni, A.;Lassila, T.;Rozza, G.
通讯作者:
Rozza, G.
影响因子:
3.1
作者:
R. Gallagher
通讯作者:
R. Gallagher
DOI:
10.1016/0045-7825(90)90136-a
发表时间:
1990-09
影响因子:
7.2
作者:
J. Oden
通讯作者:
J. Oden