CLOSURE EFFECT OF FATIGUE CRACK IN RESIDUAL STRESS FIELD
残余应力场中疲劳裂纹的闭合作用

Fatigue crack propagation in a compressive residual stress field can be char-acterized with the closure effect.The closure force under cyclic loading as well as crackgrowth rate may be determined by experiments.Results show that the minimun crackgrowth ra