Failure behaviour of bolted structures under cyclic transverse displacement

被引：9

作者：

Fan, Jianfei ^{[1
]}

Li, Hechang ^{[1
]}

Zhang, Yunqiao ^{[1
]}

Li, Tao ^{[2
]}

Liu, Jianhua ^{[1
]}

Peng, Jinfang ^{[2
]}

Zhu, Minhao ^{[1
]}

机构：

[1] Southwest Jiaotong Univ, Key Lab Adv Technol Mat, Minist Educ, Chengdu 610031, Peoples R China

[2] Southwest Jiaotong Univ, Tract Power State Lab, Chengdu 610031, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2023年 / 178卷

基金：

中国国家自然科学基金;

关键词：

Bolted structures; Loosening behaviour; Fatigue life; Wear mechanism; FINITE-ELEMENT-ANALYSIS; LOOSENING MECHANISM; FASTENERS; JOINTS;

D O I：

10.1016/j.triboint.2022.108030

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Thread damage of the bolts used in the skirt board structures of a high-speed train is analyzed in this study. An experimental study on the loosening behaviour and fatigue fracture of bolted structures is conducted. After the tests, the thread damage and the fracture morphology of bolts are studied. The experimental results show that fatigue wear is the main wear mechanism of the used bolts. The increase in the amplitude of cyclic transverse displacement worsens the thread damage and increases the loosening degree of bolted structures. The bolts fracture in fatigue, and the fatigue life obeys normal distribution when the amplitude of cyclic transverse displacement is large. The fracture morphology of bolts exhibits ductile fracture with dimples.

引用

页数：11

共 30 条

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