【Key words】 aluminum alloy; fracture; crystal plasticity finite element method; crystallographic orientation; void growth; void coalescence; dislocation slip; stress triaxialiry; recrystallization; fracture toughness;
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When the void size is larger, the inertial effect is dominant and the size effect is negligible, and vice versa. Under higher stress triaxiality, both the inertial effect and the size effect suppress markedly the void growth.
在高应力三维度下,惯性效应和尺度效应对孔洞长大具有抑制作用。
参考来源 - 冲击载荷下含孔洞材料屈服及孔洞动态演化的微尺度效应·2,447,543篇论文数据,部分数据来源于NoteExpress
模型对光滑拉伸试件中孔洞长大的预测是不够准确的。
R T model is inaccurate for predicting void growth in a smooth tensile bar.
材料的应变速率敏感性指数与孔洞长大速率通过不同的变形机理图控制着这种过程。
It is controlled by the sensitive index of the strain rate and the cavity growth rate of material.
在高温状态下,镍基单晶超合金的变形、损伤及断裂分析中,孔洞的长大都起着主要的作用。
Void growth behavior plays an important role in the deformation, damage and rupture of the nickel-base single crystal superalloys at high temperature.
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