Evaluation of true stress-strain diagrams for welded joints by application of Digital Image Correlation
Abstract
Digital Image Correlation (DIC) is applied to evaluate stress-strain diagrams for welded joints in two different ways. The first one is based on the measures strains along the welded joint, including all 3 zones of interest, base metal (BM), weld metal (WM), and heat-affected-zone (HAZ) subdivided into fine grain (FG) and coarse grain (CG) subzones. Specially designed iterative procedure has been used to determine coefficient of Holomon law to get true stress-strain curves for welded joint made of HSLA steel Niomol 490. The second one presents new methodology for evaluating true stress-strain diagram, based on measured values of contraction, as obtained by 3D DIC, rather than more conventional analytical formulas. New methodology is applied to undermatched welded joint, made of martensitic steels X10 CrMoVNb 9-1.
Keywords:
X10 CrMoVNb 9-1 / Welded joints / Digital Image CorrelationSource:
Engineering Failure Analysis, 2021, 128Publisher:
- Pergamon-Elsevier Science Ltd, Oxford
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200105 (University of Belgrade, Faculty of Mechanical Engineering) (RS-MESTD-inst-2020-200105)
DOI: 10.1016/j.engfailanal.2021.105609
ISSN: 1350-6307
WoS: 000692061600002
Scopus: 2-s2.0-85111293116
Collections
Institution/Community
Inovacioni centarTY - JOUR AU - Milošević, Nenad AU - Younise, Bashir AU - Sedmak, Aleksandar AU - Travica, Milan AU - Mitrović, A. PY - 2021 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3522 AB - Digital Image Correlation (DIC) is applied to evaluate stress-strain diagrams for welded joints in two different ways. The first one is based on the measures strains along the welded joint, including all 3 zones of interest, base metal (BM), weld metal (WM), and heat-affected-zone (HAZ) subdivided into fine grain (FG) and coarse grain (CG) subzones. Specially designed iterative procedure has been used to determine coefficient of Holomon law to get true stress-strain curves for welded joint made of HSLA steel Niomol 490. The second one presents new methodology for evaluating true stress-strain diagram, based on measured values of contraction, as obtained by 3D DIC, rather than more conventional analytical formulas. New methodology is applied to undermatched welded joint, made of martensitic steels X10 CrMoVNb 9-1. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Engineering Failure Analysis T1 - Evaluation of true stress-strain diagrams for welded joints by application of Digital Image Correlation VL - 128 DO - 10.1016/j.engfailanal.2021.105609 ER -
@article{ author = "Milošević, Nenad and Younise, Bashir and Sedmak, Aleksandar and Travica, Milan and Mitrović, A.", year = "2021", abstract = "Digital Image Correlation (DIC) is applied to evaluate stress-strain diagrams for welded joints in two different ways. The first one is based on the measures strains along the welded joint, including all 3 zones of interest, base metal (BM), weld metal (WM), and heat-affected-zone (HAZ) subdivided into fine grain (FG) and coarse grain (CG) subzones. Specially designed iterative procedure has been used to determine coefficient of Holomon law to get true stress-strain curves for welded joint made of HSLA steel Niomol 490. The second one presents new methodology for evaluating true stress-strain diagram, based on measured values of contraction, as obtained by 3D DIC, rather than more conventional analytical formulas. New methodology is applied to undermatched welded joint, made of martensitic steels X10 CrMoVNb 9-1.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Engineering Failure Analysis", title = "Evaluation of true stress-strain diagrams for welded joints by application of Digital Image Correlation", volume = "128", doi = "10.1016/j.engfailanal.2021.105609" }
Milošević, N., Younise, B., Sedmak, A., Travica, M.,& Mitrović, A.. (2021). Evaluation of true stress-strain diagrams for welded joints by application of Digital Image Correlation. in Engineering Failure Analysis Pergamon-Elsevier Science Ltd, Oxford., 128. https://doi.org/10.1016/j.engfailanal.2021.105609
Milošević N, Younise B, Sedmak A, Travica M, Mitrović A. Evaluation of true stress-strain diagrams for welded joints by application of Digital Image Correlation. in Engineering Failure Analysis. 2021;128. doi:10.1016/j.engfailanal.2021.105609 .
Milošević, Nenad, Younise, Bashir, Sedmak, Aleksandar, Travica, Milan, Mitrović, A., "Evaluation of true stress-strain diagrams for welded joints by application of Digital Image Correlation" in Engineering Failure Analysis, 128 (2021), https://doi.org/10.1016/j.engfailanal.2021.105609 . .