Secondly, with the first mode of eigenvalue analysis on SSRS as the initial disfigurement, nonlinear buckling loads are obtained by nonlinear buckling analysis.
采用弹塑性有限元法，结合非线性屈曲理论，分析了受初始几何缺陷影响的管线钢管在内压作用下的非线性屈曲。
Secondly, with the first mode of eigenvalue analysis on SSRS as the initial disfigurement, nonlinear buckling loads are obtained by nonlinear buckling analysis.
采用弹塑性有限元法，结合非线性屈曲理论，分析了受初始几何缺陷影响的管线钢管在内压作用下的非线性屈曲。
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