The results show that stitching significantly improves critical buckling loads, the buckling loads increase rapidly with increase in equivalent elastic coefficient of stitching thread.
分析结果表明，缝纫对提高临界曲屈载荷的作用十分明显，随着缝线等效弹性系数的增大，临界曲屈载荷迅速提高；
In addition, this paper presents how the diameter reducing rate, the die semicone angle, the friction coefficient and the original wall thickness influence the buckling and the axial elongation rate.
并分析了缩径率、缩径凹模半锥角、摩擦系数、缩径管坯初始壁厚对管端翘曲和轴向伸长率的影响规律。
The concept of the buckling-strength coefficient to determine whether the local buckling occurs in the member is put forward.
为方便判断构件是否发生局部屈曲，提出了屈强系数的概念。
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