摘要
采用非线性蠕变本构关系和夹层模型,对具初始缺陷压杆蠕变屈曲进行了几何非线性和几何线性分析,结果表明:几何非线性对蠕变后屈曲路径和临界时间有一定的影响,当初始挠度与载荷较小时,几何非线性对蠕变屈曲临界时间的影响可以忽略不计。
Based on the nonlinear creep theory and sandwich model, geometric linear and nonlinear Creep buckling of compressed column with initial imperfection are studied respectively. The effects of geometric nonlinearity and loads on the critical time of creep buckling are discussed. The effect of geometric nonlinearity can be neglected when the initial imperfection and load are small.
出处
《株洲工学院学报》
2006年第6期94-97,共4页
Journal of Zhuzhou Institute of Technology
关键词
蠕变屈曲
几何非线性
压杆
临界时间
creep buckling
geometric nonlinearity
compressed column
critical time
