Multivariate Fatigue Performance Study of 30NiCrMoV12 Defective Axles

doi:10.3901/JME.2023.14.237

Abstract

Abstract: There are many forms of foreign object impact defects on the axle, among which the angular impact has a greater impact on the fatigue performance of the axle and will accelerate the failure of the axle. In order to study the influence of angular impact defects on the fatigue limit of the axles, for the 30NiCrMoV12 axle steel, the combination of software simulation and fatigue test is adopted, the stress field analysis of the impact defect area is carried out with the help of ABAQUS, the fatigue test is carried out on the prefabricated defective axle sample, and the fatigue P-S-N curve of each sample group is fitted according to the test result of the approximate Owen one-side tolerance limit method, and the corresponding fatigue limit is obtained. The fatigue limit of the full-size axle is predicted based on the fatigue test results of each specimen group. Considering the dispersion of the impact defect depth, the two parameters of the defect depth and the fatigue limit of the full-size axle are fitted. Finally, based on the EI-HADDAD formula, a multivariate fatigue limit prediction model of 30NiCrMoV12 axle steel with angle impact defects is established. The model can be used to quickly predict the fatigue limit of full-size axles with different sizes of angular defects.

Key words: high speed train axles, angular impact defect, fatigue limit, multivariable mode

CLC Number:

U270

ZHOU Suxia, DUAN Suyu, WU Yi, SUN Yuduo, LU Junlin. Multivariate Fatigue Performance Study of 30NiCrMoV12 Defective Axles[J]. Journal of Mechanical Engineering, 2023, 59(14): 237-244.

References

[1] Huo Y M,Lin J G,Bai Q,et al. Prediction of microstructure and ductile damage of a high-speed railway axle steel during cross wedge rolling[J]. Journal of Materials Processing Technology,2017(239):359-369.
[2] Klinger C,Bettge D. Axle fracture of an ICE3 high speed train[J]. Engineering Failure Analysis,2013(35):66-81.
[3] 周素霞. 高速列车空心车轴损伤容限理论与方法研究[D]. 北京:北京交通大学, 2010. ZHOU Suxia. Theory and method research on damage tolerance of the hollow axles of high speed trains[D]. Beijing:Beijing Jiaotong University,2010.
[4] LUO Y,Wang H,Li C H,et al. Fatigue strength assessment of high-speed railway axle EA4T steel with foreign object damage[J]. Engineering Failure Analysis,2021:133:105961.
[5] Zhu L,Hu X T,Jiang R. Experimental investigation of small fatigue crack growth due to foreign object damage in titanium alloy TC4[J]. Materials Science & Engineering A,2019(739):214-224.
[6] RIEGER M,MOSER C,BRUNNHOFER P,et al. Fatigue crack growth in full-scale railway axles-Influence of secondary stresses and load sequence effects[J]. International Journal of Fatigue, 2020, 132:105360.
[7] Peters J O,Ritchie R O. Influence of foreign-object damage on crack initiation and early crack growth during high-cycle fatigue of Ti-6Al-4V[J]. Engineering Fracture Mechanics,2000(67):193-207.
[8] 张恒,尹鸿祥,吴毅,等. 含不同尺寸菱形压痕EA4T钢车轴的疲劳性能[J]. 机械工程材料,2021,45(3):61-65,82. ZHANG Heng,YIN Hongxiang,WU Yi,et al. Fatigue performance of EA4T steel axle with diamond indentation of different size[J]. Materials for Mechanical Engineering, 2021,45(3):61-65,82.
[9] WU S C,XU Z W,KANG G Z,et al. Probabilistic fatigue assessment for high-speed railway axles due to foreign object damages[J]. International Journal of Fatigue,2018(117):90-100.
[10] XU Z W,WU S C,WANG X S. Fatigue evaluation for high-speed railway axles with surface scratch[J]. International Journal of Fatigue,2019(123):79-86.
[11] 卜玮杰,高杰维,戴光泽,等. 人工缺陷对S38C车轴钢疲劳极限的影响[J]. 机械工程材料,2020,44(5):16-20. BU Weijie,GAO Jiewei,DAI Guangze,et al. Effect of artificial defects on fatigue limit of S38C axle steel[J]. Materials for Mechanical Engineering,2020,44(5):16-20.
[12] GAO J W,YU M H,LIAO D,et al. Foreign object damage tolerance and fatigue analysis of induction hardened S38C axles[J]. Materials and Design,2021(202):109488.
[13] 吴毅,尹鸿祥,张澎湃,等. 含异物击打伤高速动车组车轴疲劳寿命预测[J]. 中国铁道科学,2021,42(2):116-124. WU Yi,YIN Hongxiang,ZHANG Pengpai,et al. Prediction of fatigue life of axles of high-speed EMU damaged by foreign bodies[J]. China Railway Science, 2021,42(2):116-124.
[14] 吴毅,项彬,张斌,等. 高铁车轴强度设计及全尺寸疲劳试验方法比较[J]. 铁道车辆,2015,53(6):1-5,7. WU Yi,XIANG Bin,ZHANG Bin,et al. Strength design of high-speed railway axle and comparison of full-scale fatigue test methods[J]. Rolling Stock,2015,53(6):1-5,7.
[15] WU S C,LUO Y,SHEN Z,et al. Collaborative crack initiation mechanism of 25CrMo4 alloy steels subjected to foreign object damages[J]. Engineering Fracture Mechanics,2020(225):160884.
[16] 陈传尧. 疲劳与断裂[M]. 武汉:华中科技大学出版社,2002. CHEN Chuanyao. Fatigue and fracture[M]. Wuhan:Huazhong University of Science and Technology Press,2002.
[17] 李伟,李强,鲁连涛,等. 超长寿命疲劳破坏行为的可靠性研究[J]. 工程力学,2009,26(6):36-41. LI Wei,LI Qiang,LU Liantao,et al. Reliability research on the fatigue fracture behavior in very high cycle region[J]. Engineering Mechanics,2009,26(6):36-41.
[18] Shen C L,Wirsching P H,Cashman G T. Design curve to characterize fatigue strength[J]. Journal of Engineering Materials and Technology,1996,118(4):535-541.
[19] 尚德广. 疲劳强度理论[M]. 北京:科学出版社,2017. SHANG Deguang. Fatigue strength theory[M]. Beijing:Science Press,2017.
[20] 吕晓旭. 典型缺陷对车轴应力及疲劳寿命影响研究[D]. 北京:北京交通大学,2019. LÜ Xiaoxu. Study the influence of typical defects on axle's stress and fatigue life[D]. Beijing:Beijing Jiaotong University,2019.
[21] Peters J O,Boyce B L,Chen X,et al. On the application of the Kitagawa-Takahashi diagram to foreign-object damage and high-cycle fatigue[J]. Engineering Fracture Mechanics,2002(69):1425-1446.
[22] Kitagawa H,Takahashi S. Applicability of fracture mechanics to very small crack or crack in early stage[C]//Proceedings of the 2nd International Conference on Mechanical Behavior of Materials,1976:627-631.
[23] Miller K J. The two thresholds of the fatigue behavior[J]. Fatigue & Fracture of Engineering Materials & Structures,2010,16(9):931-939.