A hybrid algorithm of partitioned finite element and interface element for dynamic contact problems with discontinuous deformation

被引：11
|
作者：
Fan, Shujie [1 ]
Li, Tongchun [1 ,2 ]
Liu, Xiaoqing [1 ]
Zhao, Lanhao [1 ]
Niu, Zhiwei [1 ]
Qi, Huijun [1 ]
机构：
[1] Hohai Univ, Coll Water Conservancy & Hydropower Engn, Nanjing 210098, Jiangsu, Peoples R China
[2] Natl Engn Res Ctr Water Resource Efficient Utiliz, Nanjing 210098, Jiangsu, Peoples R China
来源：
COMPUTERS AND GEOTECHNICS | 2018年 / 101卷
关键词：
Finite element model; Localized discontinuous deformation; Rigid displacement; Contact problem; Dynamic analysis; BOUNDARY ELEMENTS; EARTHQUAKE; MODEL;
D O I：
10.1016/j.compgeo.2018.04.022
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
This work introduces the interactive method of partitioned finite element and interface element (PFE/TE) to analyse the dynamic behaviours of structures with discontinuous deformations. The dynamic IE equations can be derived by combining the nonlinear equation based on the Newmark method and the dynamic equilibrium equation. The nodal displacement can be solved via PFE by combining the contact force into the total force vector; consequently, the failure state can be procured. PFE/IE improves the computational efficiency as nonlinear iteration is limited to the possible contact region. Dynamic results obtained with other techniques or experiments are introduced and compared to validate the accuracy and robustness of PFE/IE.
引用
收藏
页码：130 / 140
页数：11
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