toughness factor

The experimental results show that foe values of strain intensity factor and strain fracture toughness are more stable and useful or determining the thermal fracture property of the concrete.

实验表明，作者提出的应变强度因子及应变断裂韧性的概念对反映混凝土材料的断裂特性更稳定更具实际意义。

Dynamic stress intensity factor impulse response curves are obtained. The dynamic initial fracture time, tf, can be received by RKR local stress fracture criterion. The material dynamic fracture toughness is successfully obtained from numerical simulation.

起裂时问通过RKR局部应力断裂准则获得，结合计算得到的动态应力强度因子冲击响应曲线，最终得到材料动态断裂韧性，并验证了其有效性。

The quenched and tempered steel WH80Q offers high strength, excellent low temperature impact toughness, lamellar tearing resistance and lower aging sensitivity factor.

舞钢研制开发的调质钢WH80Q具有高强度、良好的低温冲击韧性、抗层状撕裂性能、较低的时效敏感性系数。