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Fracture analysis of spot-welds with edge cracks using 2-D hybrid special finite element

journal contribution
posted on 2004-01-01, 00:00 authored by J Song, Chunhui Yang, H Huh, H Kim, S Park
This paper employed a systematic analysis using a 2-D hybrid special finite element containing an edge crack in order to describe the fracture behavior of spot-welds in automotive structures. The 2-D hybrid special finite element is derived form a mixed formulation with a complex potential function with the description of the singularity of a stress field. The hybrid special finite element containing an edge crack can give a better description of its singularity with only one hybrid element surrounding one crack. The advantage of this special element is that it can greatly simplify the numerical modeling of the spot welds. Some numerical examples demonstrate the validity and versatility of the present analysis method. The lap-shear, lap-tension and angle-clip specimens are analyzed and some useful fracture parameters such as the stress intensity factor and the initial direction of crack growth are obtained simultaneously.

History

Journal

Transactions of materials processing

Volume

13

Issue

6

Pagination

484 - 489

Publisher

[Hanʼguk Sosŏng Kagong Hakhoe]

Location

[Korea]

ISSN

1225-696X

Language

eng

Notes

KOI: 'KISTI1.1003/JNL.JAKO200425720317467 '

Publication classification

C1.1 Refereed article in a scholarly journal

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