摘要
对制动盘材料的疲劳裂纹扩展速率进行了试验研究。以Paris公式为理论依据,采用三点弯曲法确定了疲劳裂纹扩展速率da/dN公式,得到疲劳裂纹扩展速率da/dN公式中的材料参数C、m,分别为C=4.94×10-15,m=3.536 7。该测定参数可用于锻钢制动盘剩余寿命评估。
Fatigue crack propagation rate of the forge steel brake disc is studed with a test in the paper.The fatigue crack propagation rate da/dN is determined with SE （B） test based on Paris, and the values of material parameter C, m are computed, which are the 4.94 × 10^-15 and 3.536 7 respectively. The fatigue crack propagation rate can be used to predict the forge steel brake disc residual life.
出处
《铁道机车车辆》
2007年第5期1-2,45,共3页
Railway Locomotive & Car
基金
国家高新技术产业发展项目(2001J001H)
