CONTROL OF ELASTIC PLANE-WAVE DISPERSION IN TWO-DIMENSIONAL FINITE-ELEMENT MESHES

被引：5
|
作者：
TA, KD
ROGERS, RJ
机构：
[1] Univ of New Brunswick, Dep of, Mechanical Engineering, Fredericton,, NB, Can, Univ of New Brunswick, Dep of Mechanical Engineering, Fredericton, NB, Can
来源：
COMPUTERS & STRUCTURES | 1985年 / 21卷 / 06期
关键词：
ELASTIC PLANE WAVE DISPERSION - FINITE ELEMENT MESHES;
D O I：
10.1016/0045-7949(85)90169-5
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The control of discretization dispersion and spurious oscillations in finite element plane wave propagation problems is examined. Using a lumped mass spatial discretization and an explicit temporal integration, two-dimensional plane strain and plane stress meshes are considered. The control of the discretization errors in uniform meshes is very effective using a time step exactly equal to the stability limit. The magnitudes of spurious wave reflections in non-uniform meshes depend largely on the ratio of element lengths. Actual stress wave transmissions and reflections in composite bars are accurately predicted.
引用
收藏
页码：1145 / 1151
页数：7
相关论文
共 50 条
12345