Effective variation analysis model for the riveting press process of a flush rivet

Jun Zhang, Yuan Li, Hui Cheng, Kaifu Zhang

科研成果: 书/报告/会议事项章节会议稿件同行评审

2 引用 (Scopus)

摘要

Most of the fatigue damage in aircraft structures can be linked to the stress concentration arising at the rivet joints. Interference-fit riveting of a flush rivet can form the uniform interference fit. Thanks to the uniform interference fit, large stress concentration can be avoided. The radial deformation, which is directly relative to interference fit, is therefore of prime importance. Parameters associated with a riveting process that directly affect the quality of rivets must be taken into account to observe the effect on radial deformation at rivet holes. This paper presents an effective variation analysis to calculate radial deformation at rivet holes by assuming that the axial stresses are constant both along the axial and radius of the rivet slug. Firstly, the rivet process model is built before variation analysis. Secondly, theoretical relationships between radial deformations and contact loads are proposed using elasto-plastic analysis. Later, the expressions of the contact loads are given according to geometrical relationships and analysis of deforming forces. Thirdly, an instance made up of the rivet, top sheet and bottom sheet is used to verify the analysis model. The model paves an efficient way to study the deforming law of the riveting press process and build the pre-estimate model of the rivet deformations and the parameter optimization model.

源语言英语
主期刊名Manufacturing Science and Technology
6762-6768
页数7
DOI
出版状态已出版 - 2012
活动2011 International Conference on Manufacturing Science and Technology, ICMST 2011 - Singapore, 新加坡
期限: 16 9月 201118 9月 2011

出版系列

姓名Advanced Materials Research
383-390
ISSN(印刷版)1022-6680

会议

会议2011 International Conference on Manufacturing Science and Technology, ICMST 2011
国家/地区新加坡
Singapore
时期16/09/1118/09/11

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