非理想压杆稳定分析的样条函数法

采用样条函数构造的位移模式，出了非理想压杆稳定极限承载力及稳定平衡全过程的样条函数分析法。本方法可以考虑任意实际初始缺陷和材料弹塑性加卸载效应的影响。计算表明，本方法精度高，速度快。

A Spline Function Method for Stability Analysis of Non-Ideal Compressed Members

In this paper a spline function method is presented for the solution of the stability of non-idealcompressed members. All practical initial imperfections can be considered,and,the effect of loading, unloading and reloading to the material of members can be included in analysis. Numerical examplesshow that the method of this paper has high accuracy and high efficiency.