The simulation results of stress field show that it is tensile residual stress around the groove, and compressive residual stress with transition to plate edge.
应力场模拟结果显示，清根坡口附近为拉伸残余应力，向板边过渡为压缩残余应力。
Fatigue crack propagation in a compressive residual stress field can be characterized with the closure effect.
疲劳裂纹在残余压应力场中的扩展可借助于裂纹闭合力来描述。
Fatigue crack propagation in a compressive residual stress field can be characterized with the closure effect.
疲劳裂纹在残余压应力场中的扩展可借助于裂纹闭合力来描述。
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