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Aluminium Self-Piercing Rivet's Failure: Testing and Numerical Analyses

Abstract

In the present study, the behaviour of aluminium rivets in alloy AA7278-T6 during the riveting process when used to join two aluminium plates was investigated experimentally and numerically. It was observed by Hoang et al. that a rivet in alloy AA7278-T6 may fracture in shear when undergoing high pressure during the riveting process. A damage-based failure model was adopted for studying the shear fracture behaviour of the rivet. A calibration procedure of the damage parameters was suggested based on two tests (i.e. material tension tests and rivet compression tests). The model was implemented in the finite element code LS-DYNA as a user-defined subroutine. Numerical results showed that the model seemed to be able to capture the shear fracture mode in the rivets as observed in the tests.

Category

Academic article

Client

  • Research Council of Norway (RCN) / 174834

Language

English

Author(s)

Affiliation

  • Norwegian University of Science and Technology
  • SINTEF Industry / Materials and Nanotechnology

Year

2014

Published in

Applied Mechanics and Materials

ISSN

1660-9336

Publisher

Trans Tech Publications

Volume

541 - 542

Page(s)

1355 - 1359

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