Nonlinear explicit layered shell element and its GPU parallel computing implementation

被引：0
|
作者：
Cao S. [1 ,2 ]
Li Z. [2 ]
Yang Z. [1 ]
机构：
[1] China Academy of Building Research, Beijing
[2] Guangdong Provincial Key Laboratory of Earthquake Engineering and Applied Technology, Guangzhou University, Guangzhou
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2019年 / 38卷 / 22期
关键词：
CPU+GPU parallel computing; Damage mode of concrete; Elastoplastic damage model; Nonlinear explicit layered shell element; Shear wall damage mode;
D O I：
10.13465/j.cnki.jvs.2019.22.009
中图分类号：
学科分类号：
摘要：
Based on an elastoplastic damage model of concrete under plane stress, the damage of concrete was classified into three types, tension, compression and shear, according to the concrete stress state and the demands of engineering practice, and a method for the computation of nonlinear physical hourglass force and drilling force was given. Then, a quadrilateral nonlinear explicit layered shell element with 4 nodes-24 degrees of freedom including in-plane drilling was proposed. The proposed shell element was implemented in a nonlinear analysis software which was independently-developed and based on CPU+GPU parallel computing. By comparing the results of benchmark example by the ABAQUS and the software, the correctness of the shell element was verified. The rationality of the shell element was also proved by the monotonic loading experimental results on a shear wall. In addition, the seismic nonlinear time history analysis of a high-rise frame-tube structure in Shanghai was carried out by using the software and ABAQUS respectively. The results show that: the results by the software and ABAQUS are basically the same, and the computational efficiency of the software is 5.69 times that of the ABAQUS, moreover, the tension damage, compression damage and shear damage shown by the software are more useful to reveal the damage evolution and failure of the tube. © 2019, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：60 / 69and84
页数：6924
相关论文
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