具有反向屈服自紧厚壁圆筒的残余应力及其对厚壁强度的影响

The Residual Stress in a Reverse Yielding Autofrettaged Thick-walled Cylinder and its Influence tothe Strength of the Thick-walled Cylinder

本文用理想弹塑性材料模型给出了具有反向屈服自紧厚壁圆筒的残余应力和工作应力的解,给出了反向屈服半径的计算公式并讨论了厚壁圆筒所能承受的压力,以及残余应力的影响。

Using ideal elastic-plastic model, the solusion for the residual stress and working stress in a reverse yielding autofrettaged thick-walled cylinder were derived and the formulation calculating the reverse yielding radius is obtained. The pressure borne by the thick-walled cylinder and the influence of the residual stress were discussed .