Crack tip fields effects on crack propagation through the heat affected zone in an overmatched welded joint
Abstract
The mismatching constraint effect on crack propagation through the heat-affected zone (HAZ) in a welded joint is presented in this paper. It is shown that due to this effect, the fracture behavior of an overmatched welded joint depends on the mechanical properties and the size of the region of the crack tip location, as well as on the properties and the size of surrounding regions. The finite element analysis of high-strength low-alloyed (HSLA) steel welded joints with crack tips in the heat-affected zone is performed based on previous experimental work. Two locations of the crack tip are analyzed: fine-grained HAZ (FGHAZ) and coarse-grained HAZ (CGHAZ). In both cases, after the initial propagation of the crack in FGHAZ or CGHAZ, its propagation is directed toward more ductile base metal, thus increasing the fracture resistance of a welded joint. Some new observations about the reasons for such behavior due to crack tip strain fields are presented as well.
Keywords:
Welded joint / Strength Mismatching / Crack Tip Strain Fields / Finite Element MethodSource:
2023, 46, 8Funding / 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)
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Institution/Community
Inovacioni centarTY - JOUR AU - Adžiev, Gorgi AU - Sedmak, Aleksandar AU - Sedmak, Simon AU - Adžiev, Todor AU - Radaković, Zoran PY - 2023 UR - https://machinery.mas.bg.ac.rs/handle/123456789/7108 AB - The mismatching constraint effect on crack propagation through the heat-affected zone (HAZ) in a welded joint is presented in this paper. It is shown that due to this effect, the fracture behavior of an overmatched welded joint depends on the mechanical properties and the size of the region of the crack tip location, as well as on the properties and the size of surrounding regions. The finite element analysis of high-strength low-alloyed (HSLA) steel welded joints with crack tips in the heat-affected zone is performed based on previous experimental work. Two locations of the crack tip are analyzed: fine-grained HAZ (FGHAZ) and coarse-grained HAZ (CGHAZ). In both cases, after the initial propagation of the crack in FGHAZ or CGHAZ, its propagation is directed toward more ductile base metal, thus increasing the fracture resistance of a welded joint. Some new observations about the reasons for such behavior due to crack tip strain fields are presented as well. T1 - Crack tip fields effects on crack propagation through the heat affected zone in an overmatched welded joint IS - 8 VL - 46 DO - 10.1111/ffe.14030 ER -
@article{ author = "Adžiev, Gorgi and Sedmak, Aleksandar and Sedmak, Simon and Adžiev, Todor and Radaković, Zoran", year = "2023", abstract = "The mismatching constraint effect on crack propagation through the heat-affected zone (HAZ) in a welded joint is presented in this paper. It is shown that due to this effect, the fracture behavior of an overmatched welded joint depends on the mechanical properties and the size of the region of the crack tip location, as well as on the properties and the size of surrounding regions. The finite element analysis of high-strength low-alloyed (HSLA) steel welded joints with crack tips in the heat-affected zone is performed based on previous experimental work. Two locations of the crack tip are analyzed: fine-grained HAZ (FGHAZ) and coarse-grained HAZ (CGHAZ). In both cases, after the initial propagation of the crack in FGHAZ or CGHAZ, its propagation is directed toward more ductile base metal, thus increasing the fracture resistance of a welded joint. Some new observations about the reasons for such behavior due to crack tip strain fields are presented as well.", title = "Crack tip fields effects on crack propagation through the heat affected zone in an overmatched welded joint", number = "8", volume = "46", doi = "10.1111/ffe.14030" }
Adžiev, G., Sedmak, A., Sedmak, S., Adžiev, T.,& Radaković, Z.. (2023). Crack tip fields effects on crack propagation through the heat affected zone in an overmatched welded joint. , 46(8). https://doi.org/10.1111/ffe.14030
Adžiev G, Sedmak A, Sedmak S, Adžiev T, Radaković Z. Crack tip fields effects on crack propagation through the heat affected zone in an overmatched welded joint. 2023;46(8). doi:10.1111/ffe.14030 .
Adžiev, Gorgi, Sedmak, Aleksandar, Sedmak, Simon, Adžiev, Todor, Radaković, Zoran, "Crack tip fields effects on crack propagation through the heat affected zone in an overmatched welded joint", 46, no. 8 (2023), https://doi.org/10.1111/ffe.14030 . .