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

页数：37

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