珠光体重轨钢疲劳裂纹尖端的应力应变场

岑耀东, 计春娇, 包喜荣, 王晓东, 陈林, 董瑞

Stress-Strain Field at the Fatigue Crack Tip of Pearlite Heavy Rail Steel

CEN Yaodong, JI Chunjiao, BAO Xirong, WANG Xiaodong, CHEN Lin, DONG Rui

表8 最大等效应变

Table 8 Maximum equivalent strain results

Crack length 1 mm 2 mm 3 mm Method and error rate Simulation Strain test Error rate Simulation Strain test Error rate Simulation Strain test Error rate 1# 0.049 0.051 3.9% 0.069 0.061 13.1% 0.074 0.082 9.7% 2# 0.042 0.036 16.7% 0.060 0.050 20% 0.067 0.064 4.7% 3# 0.021 0.021 0 0.035 0.049 28.6% 0.055 0.058 5.1%