File(s) not publicly available

Tensile strength and failure simulation of simplified spot weld models

journal contribution
posted on 15.01.2020, 00:00 authored by Neamul KhandokerNeamul Khandoker, M Takla
A simple model for spot weld joints is desirable in body-in-white automotive structures which contains thousands of them. Hence, comparative performance and failure prediction study of six simplified spot weld models in terms of their geometric and constitutive properties are presented in this paper. The stiffness characteristics of these models under tensile loading condition were compared with the experimental results. It was found that the current spot weld modelling practice in the automotive industry predict the strength with 45.33% of error. To simulate the joint failure a material damage criterion correlating ultimate tensile strength of material was implemented in the developed models. The comparative study with respect to the accuracy was also related with the computational cost incurred by the different models. Hence, suitable modelling conditions to design a finite element model for spot welded joints are established which is very simple to develop, relatively cheap in terms of computational costs but yet predicts reasonably accurate results. © 2013 Elsevier Ltd.

Funding

Other

History

Volume

54

Start Page

323

End Page

330

Number of Pages

8

eISSN

1873-4197

ISSN

0264-1275

Publisher

Elsevier, UK

Peer Reviewed

Yes

Open Access

No

Acceptance Date

19/08/2013

External Author Affiliations

RMIT University; Monash University

Era Eligible

Yes

Journal

Materials and Design