Unified Space-Time Finite Element Methods for Dissipative Continua Dynamics

被引：8
|
作者：
Kim, Jinkyu [1 ]
Dargush, Gary F. [2 ]
Roh, Hwasung [3 ]
Ryu, Jaeho [4 ]
Kim, Dongkeon [5 ]
机构：
[1] Hanyang Univ, Sch Architecture & Architectural Engn, 55 Hanyangdaehak Ro, Kyeonggi Do 426791, South Korea
[2] SUNY Buffalo, Dept Mech & Aerosp Engn, Buffalo, NY 14260 USA
[3] Chonbuk Natl Univ, Dept Civil Engn, 567 Baekje Daero, Jeonju Si 561756, Jeollabuk Do, South Korea
[4] Korea Univ, Sch Civil Environm & Architectural Engn, Anam Dong5 Ga1, Seoul 136713, South Korea
[5] Dong A Univ, Dept Architectural Engn, 37 Nakdong Daero 550 Beon Gil, Busan 604714, South Korea
来源：
INTERNATIONAL JOURNAL OF APPLIED MECHANICS | 2017年 / 9卷 / 02期
基金：
新加坡国家研究基金会;
关键词：
Continuum dynamics; viscoelasticity; viscoplasticity;
D O I：
10.1142/S1758825117500193
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Based upon the extended framework of Hamiltons principle, unified space-time finite element methods for viscoelastic and viscoplastic continuum dynamics are presented, respectively. For numerical efficiency, mixed time-step algorithm in time- and displacement-based algorithm in space are adopted. Through analytical investigation, we demonstrate that the Newmarks constant average acceleration method and the present method are the same for viscoelasticity. With spatial eight-node brick elements, some numerical simulations are undertaken to validate and investigate the performance of the present non-iterative space-time finite element method for viscoplasticity.
引用
收藏
页数：37
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