An experimental study of the elastic-plastic deformation of double 'V' butt welds

Lee, M.M.K and Luxmoore, A.R. (1990) An experimental study of the elastic-plastic deformation of double 'V' butt welds. The Journal of Strain Analysis for Engineering Design, 25, (4), 255-265. (doi:10.1243/03093247V254255).


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The elastic-plastic fracture behaviour of undermatched double ‘V’ weldments with defects was investigated experimentally. Undermatching occurs when the yield stress of the weld is lower than that of the parent plate. Five notched specimens subjected to tension and four-point bending were tested, and deformation and strains were measured using the moiré fringe technique. Results of the study indicated that the COD in weldments with a large undermatch remained constant for a temporary period, giving a ‘flattening’ effect of the COD curve. This effect arose from the weld being shielded from further deformation by the gradual strain build-up and subsequent yielding of the parent metal.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1243/03093247V254255
ISSNs: 0309-3247 (print)
2041-3130 (electronic)
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Q Science > QC Physics
Divisions : University Structure - Pre August 2011 > School of Civil Engineering and the Environment
ePrint ID: 75351
Accepted Date and Publication Date:
Date Deposited: 11 Mar 2010
Last Modified: 31 Mar 2016 13:08

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