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对LY12CZ铝合金材料的组合强化性能进行了测试。提出了一种基于试验的组合强化模型 ,编制了应用试验组合强化模型的弹塑性有限元程序 ,并对冷胀孔边的残余应力分布进行了计算。本文的试验组合强化模型在弹塑性有限元分析中的应用 ,对计算工程中的弹塑性问题有着实际的应用价值。
The combination strengthening properties of LY12CZ aluminum alloy were tested. A test-based combined reinforcement model is proposed. The elasto-plastic finite element program is developed and the residual stress distribution along the side of the cold bulge is calculated. The application of the experimental combination reinforcement model in the elasto-plastic finite element analysis has practical application value in the elastoplastic problem in computational engineering.