IMPLICIT-EXPLICIT FINITE-ELEMENTS IN NON-LINEAR TRANSIENT ANALYSIS
IMPLICIT-EXPLICIT FINITE-ELEMENTS IN NON-LINEAR TRANSIENT ANALYSIS
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DOI：
10.1016/0045-7825(79)90086-0
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发表时间：
1979-01-01
影响因子：
7.2
通讯作者：
TAYLOR, RL
中科院分区：
文献类型：
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作者：
HUGHES, TJR;PISTER, KS;TAYLOR, RL
隐式-显式有限元“网格划分”是为非线性力学的瞬态问题而开发的。所示的方法具有改进的实现性能，可以很容易地编码到许多现有的隐式计算机程序。文中讨论了方法的稳定性和精度特性，并介绍了在不影响稳定性的情况下提高显式组精度的技术。还介绍了隐式-显式“算子分裂”方法，它能有效地处理瞬态分析中的运动约束（如不可压缩性）。
Implicit-explicit finite-element “mesh partitions” are developed for transient problems of nonlinear mechanics. The methods are shown to have improved implementational properties and may be easily coded into many existing implicit computer programs. The stability and accuracy properties of the methods are discussed, and techniques for improving the accuracy in the explicit group, without adverseley affecting stability, are described.Implicit-explicit “operator splitting” methods, which enable the efficient treatment of kinematic constraints (e.g. incompressibility) in transient analysis, are also presented.