Open AccessExperimental Study on Fatigue Performance of High Strength Bolts of Rail Vehicles Under Axial Alternating Load
Author(s) -
Fuxing Tan,
Dongsheng Xuan,
Zhiwei Zheng,
Peng Zhang,
Hui Liang Shen
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/714/3/032055
Subject(s) - thread (computing) , test bench , structural engineering , service life , engineering , key (lock) , computer science , automotive engineering , mechanical engineering , computer security
Lots of key parts of rail vehicles are connected by screw thread fastening. Therefore, it is very important to evaluate the service performance of bolt correctly and efficiently. Through the evaluation of the service performance of bolts, a series of engineering application problems of bolt connection can be well solved. In this paper, model building, theory checking, simulation analysis and bench test verification are studied in a unified way, so as to get the theory and research method of engineering application. According to the bench fatigue test, the 10.9 grade bolt was fractured after loading about 3 million times, so the bolt could not meet the life cycle requirement under this working condition.