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最近几年,国内外对疲劳裂纹起始超载效应的研究尚未能给出长寿命范围内超载对疲劳裂纹起始寿命影响的定量表达式:个别研究给出了短寿命范围内超载对疲劳裂纹起始寿命影响的表达式。
In recent years, domestic and foreign research on fatigue crack initiation overload has failed to give a quantitative expression of fatigue crack initiation life in the long-life range: individual studies have given the fatigue crack The expression of influence of starting life.