Micromechanical criteria of steel weldments ductile fracture
Само за регистроване кориснике
2019
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Welding is one of the most often applied joining procedures for different metallic
structures. Due to the nature of the process, i.e. heating, additional material (for some
methods), usage of protective atmosphere and cooling, it typically causes inhomogeneity in
the joint zone. This inhomogeneity influences the fracture behaviour, and can significantly
endanger the integrity of the welded structures. This work deals with micromechanical
criteria for initiation and development of ductile fracture in welded joints. These criteria are
applied within the framework of local approach to fracture, through experimental-numerical
procedure. Welded joints with a single weld metal or two different weld metals are
examined; the influence of constraint and heterogeneity (mismatch) is analysed. Also, the
defects in the heat affected zone are considered, as well as pipeline materials with sharp and
blunt initial defects. Micromechanical model CGM, complete Gurson model, is used for
modell...ing the damage initiation and development in the material.
Кључне речи:
micromechanical models / fracture criterion / steel / welded joint / inhomogeneityИзвор:
International Congress of Serbian Society of Mechanics, 2019, 74-91Издавач:
- Srpsko drustvo za mehaniku
Финансирање / пројекти:
Институција/група
Tehnološko-metalurški fakultetTY - CONF AU - Međo, Bojan AU - Rakin, Marko AU - Gubeljak, Nenad PY - 2019 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6176 AB - Welding is one of the most often applied joining procedures for different metallic structures. Due to the nature of the process, i.e. heating, additional material (for some methods), usage of protective atmosphere and cooling, it typically causes inhomogeneity in the joint zone. This inhomogeneity influences the fracture behaviour, and can significantly endanger the integrity of the welded structures. This work deals with micromechanical criteria for initiation and development of ductile fracture in welded joints. These criteria are applied within the framework of local approach to fracture, through experimental-numerical procedure. Welded joints with a single weld metal or two different weld metals are examined; the influence of constraint and heterogeneity (mismatch) is analysed. Also, the defects in the heat affected zone are considered, as well as pipeline materials with sharp and blunt initial defects. Micromechanical model CGM, complete Gurson model, is used for modelling the damage initiation and development in the material. PB - Srpsko drustvo za mehaniku C3 - International Congress of Serbian Society of Mechanics T1 - Micromechanical criteria of steel weldments ductile fracture EP - 91 SP - 74 UR - https://hdl.handle.net/21.15107/rcub_technorep_6176 ER -
@conference{ author = "Međo, Bojan and Rakin, Marko and Gubeljak, Nenad", year = "2019", abstract = "Welding is one of the most often applied joining procedures for different metallic structures. Due to the nature of the process, i.e. heating, additional material (for some methods), usage of protective atmosphere and cooling, it typically causes inhomogeneity in the joint zone. This inhomogeneity influences the fracture behaviour, and can significantly endanger the integrity of the welded structures. This work deals with micromechanical criteria for initiation and development of ductile fracture in welded joints. These criteria are applied within the framework of local approach to fracture, through experimental-numerical procedure. Welded joints with a single weld metal or two different weld metals are examined; the influence of constraint and heterogeneity (mismatch) is analysed. Also, the defects in the heat affected zone are considered, as well as pipeline materials with sharp and blunt initial defects. Micromechanical model CGM, complete Gurson model, is used for modelling the damage initiation and development in the material.", publisher = "Srpsko drustvo za mehaniku", journal = "International Congress of Serbian Society of Mechanics", title = "Micromechanical criteria of steel weldments ductile fracture", pages = "91-74", url = "https://hdl.handle.net/21.15107/rcub_technorep_6176" }
Međo, B., Rakin, M.,& Gubeljak, N.. (2019). Micromechanical criteria of steel weldments ductile fracture. in International Congress of Serbian Society of Mechanics Srpsko drustvo za mehaniku., 74-91. https://hdl.handle.net/21.15107/rcub_technorep_6176
Međo B, Rakin M, Gubeljak N. Micromechanical criteria of steel weldments ductile fracture. in International Congress of Serbian Society of Mechanics. 2019;:74-91. https://hdl.handle.net/21.15107/rcub_technorep_6176 .
Međo, Bojan, Rakin, Marko, Gubeljak, Nenad, "Micromechanical criteria of steel weldments ductile fracture" in International Congress of Serbian Society of Mechanics (2019):74-91, https://hdl.handle.net/21.15107/rcub_technorep_6176 .