对充满液体的薄壁圆柱壳经受轴向压缩时的屈曲载荷和屈曲模态进行了弹塑性屈曲分析。
The elastic plastic buckling analysis is completed on bucking load and buckling mode of thin wall cylindrical shells fully filled with liquid under axial compression.
研究证实：罐壁竖直轴向压应力和由内压（静水和动水压力叠加）所产生的罐壁环向拉应力共同导致罐壁失稳，发生弹塑性屈曲变形；
The research proves that the internal pressure due to the axial compressive stress and the circumferential membrane causes the buckling of the tank wall.
考虑了弹塑性应力波传播对屈曲的影响，建立了该问题横向扰动方程。
The equation of lateral disturbance used to analyize the problem is developed by taking into account the effect of elastic-plastic stress wave.
本文用有限元方法分析了一定初缺陷杆受轴向冲击的弹塑性动态屈曲。
Using the finite element method, the dynamic buckling of a bar with finite initial imperfection under axial impact is analyzed in this paper.
文中提出纤维弹塑性微屈曲的观点，并由弹塑性稳定理论导出层状周期排列的纤维复合材料的临界失稳载荷参数式。
The problem is approachel from the elastoplastic microbuckling viewpoint, which leads to a formula on the critical instability load for periodically assembled layered composites.
利用弹塑性理论推导了各组板试件的屈曲临界载荷。
Critical buckling load of all plate specimens was derived based on elastoplastic theory.
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。
Secondly, with the first mode of eigenvalue analysis on SSRS as the initial disfigurement, nonlinear buckling loads are obtained by nonlinear buckling analysis.
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