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9 模型计算与MD模拟得到的不同应变率下含He泡铝样品的拉伸应力和He泡半径随时间的变化，及动态拉伸强度

Fig.9 Time evolutions of P (a) and R (b), and dynamic tensile strength (c) at various strain rates obtained from MD simulations and the present continuum model