Universiti Teknologi Malaysia Institutional Repository

Ductile failure prediction of spot welded lap joint

Tamin, Mohd. Nasir and Ayob, Amran (2011) Ductile failure prediction of spot welded lap joint. In: Regional Conference on Automotive Research (ReCAR) 2011, 14-16 December 2011, Kuala Lumpur, Wilayah Persekutuan, Malaysia.

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Official URL: http://dx.doi.org/10.4028/www.scientific.net/AMM.1...

Abstract

A finite element (FE) model incorporating a progressive material damage with Rice-Tracey damage initiation criterion is developed in this study. The relationship between local ductility reduction and stress triaxiality was established experimentally. The FE model was validated by comparisons of load-displacement response of the spot welded lap joint specimen at displacement rate of 5 mm/min and the observed ductile failure mechanism. Results show that Rice-Tracey damage initiation criterion used is sufficient to reproduce the observed ductile failure response of the specimen. Failure of the spot welded lap joint is initiated at the HAZ/fusion zone interface with localized necking.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:ductile failure, Finite Element Method (FEM), Rice-Tracey Model, spot welded joint, stress triaxiality
Divisions:Mechanical Engineering
ID Code:45771
Deposited By: Haliza Zainal
Deposited On:10 Jun 2015 03:00
Last Modified:04 Sep 2017 05:38

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