Numerical investigation on the fracture failure of a railway axle

被引：19
作者：
Giannella, V [1 ]
Sepe, R. [1 ]
Borrelli, A. [2 ]
De Michele, G. [2 ]
Armentani, E. [3 ]
机构：
[1] Univ Salerno, Dept Ind Engn, Via Giovanni Paolo 2, I-84084 Fisciano, SA, Italy
[2] EAV Srl, Corso Garibaldi 387, I-80142 Naples, Italy
[3] Univ Naples Federico II, Dept Chem Mat & Prod Engn, Piazzale 5 Tecchio 80, I-80125 Naples, Italy
来源：
ENGINEERING FAILURE ANALYSIS | 2021年 / 129卷 / 129期
关键词：
Railway axle; Fracture; Fatigue crack-growth; Non-Destructive Testing; 30NiCrMoV12; BOUNDARY-ELEMENT METHOD; FATIGUE-CRACK GROWTH; PROPAGATION; DERIVATION; LIFETIME; MAGNET;
D O I：
10.1016/j.engfailanal.2021.105680
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Railway axles are designed to be highly reliable so as to ensure even more than 30 years of service. Even though they are periodically inspected by scheduled Non Destructive Testing (NDT) inspections to detect the potential initiation of cracks, failures with disastrous consequences for railway vehicles and human beings can occur. This paper reports an investigation concerning the failure of an axle of a passenger coach due to fatigue crack propagation. Calculations indicated that the need for reliable NDT inspection methods is of crucial importance for the upfront detection of potentially critical cracks. The presented investigation was useful to support the application of the crack propagation simulation for the determination of reliable axle NDT inspection intervals so as to prevent future accidents.
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页数：11
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