摘要
通过试验研究机车车辆零部件的常用钢种 35 Cr Mo钢和 4 2 Cr Mo钢在不同应力比下 ( r=0 .1 ,r=0 .3)三点弯曲缺口试件的短裂纹扩展规律 ,得出短裂纹扩展规律为 da/d N =C(Δσ) na.
The short fatigue crack growth laws of two medium carbon alloying structural steels -35CrMo and 42CrMo,were investigated under the different stress ratios( r =0.1,0.3))and three point bending condition.The small crack growth laws d a /d N = C (Δ σ ) na were obtained for these steels.
出处
《河北师范大学学报（自然科学版）》
CAS
2001年第4期459-463,共5页
Journal of Hebei Normal University：Natural Science
基金
甘肃省自然科学基金资助项目 ( 2 910 8)
