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

Song, J. H., Yang, C. H., Huh. H, Kim, H. G. and Park , S. H. 2004, Fracture analysis of spot-welds with edge cracks using 2-D hybrid special finite element, Transactions of materials processing, vol. 13, no. 6, pp. 484-489.

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Title Fracture analysis of spot-welds with edge cracks using 2-D hybrid special finite element
Author(s) Song, J. H.
Yang, C. H.
Huh. H
Kim, H. G.
Park , S. H.
Journal name Transactions of materials processing
Volume number 13
Issue number 6
Start page 484
End page 489
Publisher [Hanʼguk Sosŏng Kagong Hakhoe]
Place of publication [Korea]
Publication date 2004
ISSN 1225-696X
Keyword(s) spot weld
edge crack
hybrid special element
stress intensity factors
Summary 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.
Notes KOI: "KISTI1.1003/JNL.JAKO200425720317467 "
Language eng
Field of Research 091006 Manufacturing Processes and Technologies (excl Textiles)
HERDC Research category C1.1 Refereed article in a scholarly journal
Persistent URL http://hdl.handle.net/10536/DRO/DU:30025952

Document type: Journal Article
Collection: School of Engineering and Information Technology
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