铝合金E形截面轴压杆件屈曲分析方法的探讨

Discussion on methods of buckling analysis for E-section aluminum alloy members under axial compression

分别采用弹性理论公式法、ANSYS软件中的特征值屈曲分析法和非线性屈曲分析法计算两端简支的铝合金E形截面薄壁杆件在轴心受压时的弯扭屈曲临界载荷。计算结果表明,采用梁单元建模并用非线性法对E形截面薄壁杆件进行轴压屈曲分析,是一种既能满足一般工程设计要求又简单易行的计算方法。

In this paper, the elastic theory formula method, eigenvalue buckling analysis method and nonlinear buckling analy- sis method of ANSYS software were used to calculate the critical load of simply supported aluminum alloy E-section thin-walled members which are loaded by axial compression. The calculation results show that it＇ s a simple method that modeling with the beam element and analyzing with the nonlinear method for E-section alu- minum alloy member and it can meet general requirements of engi- neering design.