Finite element analysis on constrained buckling of spring members in reactor 反应堆弹簧组件约束失稳现象有限元分析
Therefore, the paper puts aside the small deformation hypothesis, and the spring deformation is calculated according to its large strain when it is compressed, and moreover the buckling load of spring with simply supported ends is calculated. 为此文章撇开小变形假设,考虑到它的大应变就其压缩时的变形及其两端铰支时的稳定性进行了计算。
The local buckling model of steel plate is determined according to the assumption that the core concrete is considered as a rigid body and the steel plate of concrete-filled square steel tubular column is subjected to spring constrain at the unloading edge. 假定核心混凝土为刚性以及方钢管混凝土柱的钢管板件在非加载边受到弹性约束,确定出了钢管壁板的局部屈曲模型。