摘要
本文研究了测定薄壁筒形件残余应力分布的曲率挠度法(贝尔格法),提出了内外剥层法残余应力分布的统一计算公式,补充了径向残余应力计算式和原贝尔格法的切向附加应力计算式中漏掉的δ(x)因子。文中还介绍了应用该方法测定强力旋压薄壁简形件残余应力分布得到的实验结果。所得结果与实际变形相符,综合测量误差约为6%,能满足工程应用的要求。
In this paper, the authors have studied curvature-deflection method (Birger's method)for determining the distribution of residual stresses in a thin walled cylinder, and have developed unified calculative-equations for the outside-and insidestripping tier method. Calculative-equations for the radial residual stresses are provided with and the missed factor δ (x) in the calculative-equation on the added cirumference-stresses for the original Birger's method is supplemented. Besidos, the authors have obtianed and reported the experimental results for the distribution of residual stresses in thin-walled cylinder produced by the power spinning process. It is in agreement with the actual forming conditions. The overall error is of the order of 6%, It is shown that this can satify the engineering requirements.
出处
《兵工学报》
EI
CAS
1987年第3期49-56,共8页
Acta Armamentarii
