Effects of Multiple Defects on Welded Joint Behaviour under the Uniaxial Tensile Loading: Fem and Experimental Approach

Mihajlo Aranđelović, Ana Petrović, Branislav Đorđević (), Simon Sedmak, Aleksandar Sedmak, Stefan Dikić and Dorin Radu
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Mihajlo Aranđelović: Innovation Centre of Faculty of Mechanical Engineering, Kraljice Marije, 11120 Belgrade, Serbia
Ana Petrović: Faculty of Mechanical Engineering, University of Belgrade, Kraljice Marije, 11120 Belgrade, Serbia
Branislav Đorđević: Innovation Centre of Faculty of Mechanical Engineering, Kraljice Marije, 11120 Belgrade, Serbia
Simon Sedmak: Innovation Centre of Faculty of Mechanical Engineering, Kraljice Marije, 11120 Belgrade, Serbia
Aleksandar Sedmak: Faculty of Mechanical Engineering, University of Belgrade, Kraljice Marije, 11120 Belgrade, Serbia
Stefan Dikić: Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
Dorin Radu: Faculty of Civil Engineering, Transilvania University of Brașov, Turnului Street 5, 500036 Brașov, Romania

Sustainability, 2022, vol. 15, issue 1, 1-18

Abstract: The research represents the ongoing investigation of the welded joints behavior made of low-carbon low-alloyed steel in the presence of different multiple defects. Following the initial experimental and numerical analyses performed on low-grade steel, a set of experiments were performed with specimens made of steel EN 1.0044 (commercial designation S275JR), along with development of new numerical models. Four combinations were made, including defects like undercuts, excess weld metal, misalignment, weld face sagging and incomplete root penetration, considering that these defects are often encountered in practice, and can appear simultaneously. The finite element method (FEM) was used to simulate the experiments. Tensile properties of the HAZ and weld metal were calculated using strain measurements by the digital image correlation (DIC) method. The finite element method (FEM) results were in good agreement with the experimental ones.

Keywords: low-carbon alloyed steel; welded joint defects; digital image correlation; FEM analysis; heat affected zone (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:15:y:2022:i:1:p:761-:d:1021676

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