tension-active element

At first we explain the fundamental theory of perturbation method and derive all the formulae which are necessary to solve nonlinear problems using perturbation boundary element method. Then a plate subjected simple tension load is used to check the accuracy of employed theories and computer programs.

文中阐述了摄动法的基本理论，推导了摄动边界元法的全部公式，并以简单拉伸板为例对全部理论及计算机程序进行了检验。

Analytical and finite element solutions of cantilever beam with different tension and compression modulus

不同模量悬臂梁的解析解及有限元数值解

After finite element analysis of the coupled thermo-mechanical models of tube tension reducing, the tube deforming rule, the temperature change and the distributions of stress and strain are gained.

通过对管坯变形过程的分析，得到了管坯的成形规律、温度变化及应力应变分布。

The tension fracture finite element procedure to be possible provides the new method for the research mining coal suggestion crack mechanism and the crack expansion rule.

拉张破裂有限元程序可为研究采煤诱发地裂缝机理和裂纹的扩展规律提供新的方法。

The deforming situation of seamless steel tube in the tension reducing process was simulated by means of a large-scale and common finite-element analysis software ANSYS/ LS-DYNA, this simulation could present the deforming situation objectively.

采用ANSYS/LS-DYNA大型通用有限元分析软件对无缝钢管张力定径过程的金属变形行为进行了模拟，较直观适时地反映了该过程的金属变形状态。