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Full Field Non-Contact Investigation of Deformation Fields in Fillet and Plug Welds
ISSN: 1946-3979, e-ISSN: 1946-3987
Published January 15, 2014 by SAE International in United States
Citation: Song, K., Roehrich, D., and El-Hajjar, R., "Full Field Non-Contact Investigation of Deformation Fields in Fillet and Plug Welds," SAE Int. J. Mater. Manf. 7(1):157-161, 2014, https://doi.org/10.4271/2013-01-9096.
Fillet and plug weld are commonly used in structural applications in commercial heavy vehicles. This paper is primarily concerned with an investigation of the full field deformations fields in fillet and plug welds using three dimensional digital image correlation (3D-DIC). Two identical vehicle parts are constructed using a fillet weld for one specimen, and a plug weld for the other. The specimens are loaded under quasi-static conditions with simultaneous measurement of load, displacements and strain gage measurements. Strain gage locations are selected based on the results of a finite element analysis model. 3D-DIC measurements are constructed using a two camera setup. Thus, 3D-DIC measurements are compared to strain gage measurements and finite element predictions. The effectiveness of the non-contact full field method is evaluated for application to studying the weld details considered and potential for fatigue damage and durability.
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