论文部分内容阅读
对简支圆柱弯曲板的弹性屈曲性能进行数值分析,板件纵向边缘无约束和加载边缘约束,研究曲率、长宽比及荷载类型(由纯压缩至全平面弯曲)的影响。随后,考虑曲率的影响,对EN 1993-1-5给出的计算方法进行延伸,以用于内置板材的临界应力计算。基于数值模拟结果所提出的建议方法,能够安全、准确地估算出弹性临界应力(最小值)。
Numerical analysis of the elastic buckling behavior of a simply supported cylindrical curved plate is carried out. The constraint of the longitudinal edge of the plate and the loading edge constraint are used to study the effects of curvature, aspect ratio and load type (pure compression to full plane bending). Subsequently, considering the influence of curvature, the calculation method given in EN 1993-1-5 was extended to calculate the critical stress of the built-in sheet. Based on the proposed method proposed by the numerical simulation results, the elastic critical stress (minimum value) can be safely and accurately estimated.