Transactions of Materials and Heat Treatment

Title：Influence of riveting conditions on shear properties of composite material riveted parts

Authors： Lin Sen1 Li Gangqing1 Wang Peng1 Ye Jiehe1 Qiu Jixing1 Ni Wenbo2 Liu Yakang2

Unit： 1. CRRC Qingdao Sifang Co. Ltd. 2. School of Mechanical Engineering Southwest Jiaotong University

KeyWords： rail vehicle composite material shear test failure form riveting gap wet installation dry installation

ClassificationCode：U270.6； TH140.7

year,vol(issue):pagenumber：2024,49(8):125-131

Abstract：

In the actual production process, the composite material riveted parts of rail vehicles may appear different working conditions due to the influence of large component assembly or on-site construction conditions. Therefore, in order to study the influence of factors such as riveting gaps and riveting methods on the shear properties of composite material riveted parts, eleven riveting conditions were designed according to the actual situation, and the shear tests were carried out by tensile testing machine to analyze the failure forms, load-displacement curves and shear properties of specimens. The test results show that there are two forms of shear failure for the specimens, namely rivet failure itself and pull-off failure, and the rivet failure itself is the main failure form. The trend of load-displacement curves for each working condition is basically consistent, and different failure forms do not show obvious differences on the curves, the shear process can be divided into four stages. Under the same condition of riveting method, the shear properties of the specimens gradually deteriorate with the increasing of riveting gap, while under the same condition of riveting gap, the shear properties of wet installation specimens are generally better than that of dry installation specimens.

Funds：

中车重大项目（2022CKA323）

作者简介：林森(1990-)，男，博士，高级工程师 E-mail：linsen_phd@163.com 通信作者：倪文波(1969-)，男，博士，教授 E-mail：nwb@home.swjtu.edu.cn

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