泡沫铝主要性能特征研究及工业应用 关键词：泡沫铝；性能；塑性屈服；导热性能；电磁屏蔽 [gap=7104]Keywords：Foamed aluminum，Peformance，Plastic yield，Thermal conductivity，EIectrOmagnetic shield
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用广义应力表达了框架柱的塑性屈服条件。
The plastic yield condition of frame column is rep - resented in stress resultants.
断口主要分为塑性屈服变形区和弹性变形区两部分。
Fracture surface consists of plastic yield deformation area and elastic deformation area.
提出了一种新的损伤塑性本构模型，强调了应力三轴比对塑性屈服的影响。
A plastic constitutive damage model was proposed with special concerns being put on simulating the stress triaxiality-dependent hardening phenomena.
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