【摘要】 本文考虑了材料的应变强化和Bauschinger效应,导出了自增强厚壁筒应力的解析解,根据材料实验,将单轴拉压的应力应变关系作了筒化,对开端自增强的情况,本文给出了一个理论修正系数。本文的理论结果与实验符合较好。更多还原

【Abstract】 Considering the strain hardening and Bauschinger effect of materials, this paper givers the analytical solutions for the poroblem of autofrettage of thick-walled cylinders by using mixed hardening model. According to the experiments of materials, the uniaxial tension-compression stress-strain relationship is simplified. On the condition of open-end autofrettage, the formulae are modified with a theoretical factor. The theoretical results are in good agreement with the experimental results.更多还原