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用数值方法比较了圆筒外表面刻环形窄槽底端部与实心圆柱体中心处圆盘状窄槽底端部的应力分布,证明二者仅差一个常系数,从而以带圆盘状裂纹实心圆柱体的解为基础,给出了圆筒外表面刻环形窄槽底端部应力强度因子K1的有限元分析,为弹丸控制破片刻槽深度和刻槽宽度及弹体材料性能研究提供了重要参考。
The stress distribution between the bottom end of circular groove and the bottom of disk-shaped groove at the center of solid cylinder is compared by numerical method. It is proved that the two are only one constant coefficient, Based on the solution of the solid cylinder, the finite element analysis of the stress intensity factor K1 at the bottom of the annular groove is given, which provides the research on the depth and groove width of the projectile control fragment and the material properties of the projectile Important reference.