含He泡液态金属铝的动态拉伸断裂机制与损伤模型

周婷婷, 赵福祺, 周洪强, 张凤国, 殷建伟

Mechanism and Damage Model for the Dynamic Tensile Fracture of Liquid Aluminum Containing He Bubbles

ZHOU Tingting, ZHAO Fuqi, ZHOU Hongqiang, ZHANG Fengguo, YIN Jianwei

图4 应变率为3.0 × 108 s-1时纯Al样品与含He泡铝样品在拉伸过程中的拉伸应力及He泡/孔洞体积随时间的变化

Fig.4 Time evolutions of P (a) and volume of voids/He bubble (b) during the dynamic tension process at ε˙ = 3.0 × 108 s-1 for pure Al sample and Al-He sample