A NEW ALGORITHM OF TIME STEPPING IN DYNAMIC VISCOELASTIC PROBLEMS

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A NEW ALGORITHM OF TIME STEPPING IN DYNAMIC VISCOELASTIC PROBLEMS

A new scheme of time stepping for solving the dynamic viscoelastic problems are presented. By expanding variables at a discrete time interval, FEM based recurrent formulae are derived. A self-adaptive algorithm for different sizes of time steps can be carried out to improve computing accuracy. Numerical validation shows satisfactory performance.水利论文;oDV)w/n

作 者: 杨海天 高强 郭杏林 邬瑞锋  
作者单位:State Key Laboratory of Structural Analysis of Industrial Equipment,Department of Engineering Mechanics, Dalian University of Technology, Dalian 116023, P R China 
刊 名:应用数学和力学(英文版)  EI SCI
英文刊名:APPLIED MATHEMATICS AND MECHANICS(ENGLISH EDITION) 
年,卷(期):2001 22(6) 
分类号:O345 O322 
关键词:viscoelasticity   dynamic problem   finite element  
机标关键词:TIME STEPPINGtime steppingdiscrete time 
基金项目:Oversea returnee's starting Fund of National Education Department of China 
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