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采用动力学有限元法研究了带裂纹圆柱壳两种裂纹长度和十种裂纹方向的临界载荷 ,计算结果表明 ,在不同裂纹长度下 ,裂纹方向对圆柱壳的轴压屈曲强度有较大影响。
The dynamic finite element method is used to study the critical loads of two crack lengths and ten crack directions of the cracked cylindrical shell. The calculated results show that the crack direction has a great influence on the axial buckling strength of the cylindrical shell under different crack lengths.