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简介了循环Ｊ积分ΔＪ＊ｐａｔｈ体系，以１６ＭｎＲ钢单边椭圆孔边裂纹试件进行了６种循环应力比的恒幅应变疲劳裂纹扩展试验，采用材料应变疲劳循环加载条件下的应力－应变关系，通过弹塑性有限元素法计算ΔＪ＊ｐａｔｈ参量，研究了孔边高应变区裂纹塑性应变疲劳扩展规律。结果表明：ΔＪ＊ｐａｔｈ能够作为缺口高应变区裂纹塑性应变疲劳扩展的控制参量，与裂纹扩展速率ｄａ／ｄＮ之间的指数关系，可通过相同材料的标准试件应力疲劳裂纹扩展由Ｐａｒｉｓ公式与ΔＪ＊ｐａｔｈ＝ΔＫ２／Ｅ转换得到。
In this paper, the cyclic J-integral ΔJ * path system is introduced. Six kinds of constant-strain fatigue crack propagation tests with cyclic stress ratio are carried out with 16MnR steel single-side elliptical hole edge crack specimens. The stress-strain relationship , The ΔJ * path parameters were calculated by the elasto-plastic finite element method, and the fatigue propagation law of plastic strain in the high strain region near the hole edge was studied. The results show that ΔJ * path can be used as a control parameter for the fatigue propagation of plastic strain in high strain zone and the exponential relationship between crack growth rate da / dN and stress fatigue crack propagation of standard specimen of the same material can be calculated by Paris formula and ΔJ * path = ΔK2 / E conversion.