止裂韧性预测模型数据文件：Vc为裂纹扩展速度；R为断裂阻力；σ_flow为流变应力；P_d为裂纹尖端动态压力；P_a为止裂压力；c、m为回填常数；t为钢管壁厚；r为钢管半径；σ_arrest为止裂应力；M_T为膨胀因子；E为钢管弹性模量； C_eff为有效裂纹长度；D为钢管外径；Cv为CVN冲击功；Ac为冲击试样韧带面积；σ_YS为钢管的屈服强度。

Data file of crack arrest toughness prediction model: Vc for Crack Propagation Velocity; R for fracture resistance; σ_floww for flow stress;P_d for Crack Tip Dynamic Pressure;P_a for Crack Arrest Pressure; c、m for backfill constant; t for Pipe Wall Thickness; r for Pipe Radius; The results show that σ_arrest is the crack arrest stress, the expansion factor, E is the elastic Modulus, C_eff is the effective crack length, D is the pipe outer diameter, Cv is the CVN impact work, Ac is the impact sample ligament area, σ_YS is the pipe yield strength.