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Numerical analysis of constraint effect on ductile tearing in strength mismatched welded CCT specimens using micromechanical approach (CROSBI ID 174470)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Younise, Bashir ; Rakin, Marko ; Medjo, Bojan ; Gubeljak, Nenad ; Kozak, Dražan ; Sedmak, Aleksandar Numerical analysis of constraint effect on ductile tearing in strength mismatched welded CCT specimens using micromechanical approach // Tehnički vjesnik : znanstveno-stručni časopis tehničkih fakulteta Sveučilišta u Osijeku, 18 (2011), 3; 333-340

Podaci o odgovornosti

Younise, Bashir ; Rakin, Marko ; Medjo, Bojan ; Gubeljak, Nenad ; Kozak, Dražan ; Sedmak, Aleksandar

engleski

Numerical analysis of constraint effect on ductile tearing in strength mismatched welded CCT specimens using micromechanical approach

In this paper, constraint effect on ductile fracture initiation and propagation has been studied. Three-dimensional finite element analyses of mismatched welded joints made of high strength steel, have been performed for centre-cracked tensile (CCT) specimens. Different weld widths and material mismatching ratios have been considered. Ductile fracture parameter, crack tip opening displacement at crack growth initiation (CTODi), has been obtained for centre-cracked tensile (CCT) specimens using local approach to fracture and compared with experimental results of single edge bend specimens. Micromechanical complete Gurson model has been applied to investigate fracture behaviour of cracked welded joints. Crack tip constraint has been analysed through stress triaxiality in order to study transferability of fracture parameters from one geometry to another.

constraint effect; ductile fracture; finite element analysis; material mismatching; stress triaxiality; transferability

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Podaci o izdanju

18 (3)

2011.

333-340

objavljeno

1330-3651

Povezanost rada

Strojarstvo

Poveznice
Indeksiranost