This article use nonlinear finite element method, considering the non-linearity both in material properties and in geometry of deformations.
本文采用的是非线性有限元法，它计及了材料和几何的非线性因素。
The model include material nonlinear, geometry nonlinear and state nonlinear.
模型包括材料非线性、几何非线性、状态非线性。
Geometry nonlinear and material nonlinear and state nonlinear and dynamic load are involved in simulate course.
在模拟过程中涉及几何非线性、材料非线性、状态非线性和动态加载等问题。
Geometry nonlinear and material nonlinear and state nonlinear and dynamic load were involved in simulating course.
在模拟过程中涉及几何非线性、材料非线性、状态非线性和动态加载等问题。
Because of material nonlinear, geometry nonlinear and contacting nonlinear, the small time step is adopted to improve convergence of the calculation.
由于计算中存在着材料非线性、几何非线性以及接触非线性问题，为了提高计算的收敛性能，采用了小时间计算步长。
So the effect of the material nonlinear and geometry nonlinear should be considered when the stability issue is analyzed.
所以在计算稳定问题的时候，应该计入几何非线性和材料非线性的影响。
Hysteretic behavior of steel beam-column web connections in steel frames under cyclical load is simulated by finite element method involving material, geometry and status nonlinear.
考虑材料、几何和状态三重非线性，对钢框架梁柱腹板连接在循环荷载作用下的滞回性能进行了有限元模拟。
Based on example analysis and results comparison, the geometry-material nonlinear method is considered as the most reasonable one.
本文通过算例分析和对比，认为双非线性分析法可得出更合理的结果。
Both nonlinear effects of material and geometry are taken into account.
同时考虑材料和几何两方面的非线性。
Both nonlinear effects of material and geometry are taken into account.
同时考虑材料和几何两方面的非线性。
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