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使用基于Lee多孔材料屈服模型推导出的韧性损伤模型,对导向器类粉末金属零件成形过程中,在应力、应变、密度分布及其积累因素影响下,材料的损伤状态进行了数值模拟,在不同的加载状态下,压坯各点的损伤状况和破裂过程进行了跟踪,实验证实模拟结果具有较高的精度。
The ductile damage model derived from Lee porous material yield model was used to simulate the damage state of the material under the influence of stress, strain and density distribution and its accumulation factors during the forming process of the guide powder metal parts. Under the loading condition, the damage status and rupture process of the green compacts were tracked. The simulation results show that the simulation results have high accuracy.