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Št. zadetkov: 4
Numerical analysis of constraint effect on ductile tearing in strength mismatched welded CCT specimens using micromechanical approach
Bashir Younise, M. Rakin, Bojan Medjo, Nenad Gubeljak, Dražan Kozak, Aleksandar Sedmak
Izvirni znanstveni članek
Oznake: constraint effect;ductile fracture;finite element analysis;material mismatching;stress triaxiality;transferability;
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 mism ...
Leto: 2011 Vir: Fakulteta za strojništvo (UM FS)
Micromechanical analysis of constraint effect on fracture initiation in strength mis-matched welded joints
Miloš Dobrojević, Marko Rakin, Nenad Gubeljak, I. Cvijović, M. Zrilić, N. Krunich, Aleksandar Sedmak
Izvirni znanstveni članek
Oznake: lomna mehanika;duktilni lom;visokotrdnostna nizko legirana jekla;razpoke;nekovinski vključki;rast praznin;mikromehanski model;trdnostno neenaki zvarni spoji;fracture mechanics;ductile fracture;high strength low alloyed steel;cracks;micromechanical model;mismatched welded joints;constraint effect;void growth;
In this paper the micromechanical approach to ductile fracture was applied in a study of constraint effect crack growth initiation in mismatched welded joints. The single edged- notched bend specimens (precrack length ▫$a_o/W=0.32$▫) were experimentally and numerically analysed. The coupled micromec ...
Leto: 2007 Vir: Fakulteta za strojništvo (UM FS)
Friction-stir welding of high-strength aluminium alloys and a numerical simulation of the plunge stage
Milenko A. Perović, Darko Veljić, Marko Rakin, Nenad Radović, Aleksandar Sedmak, Nikola Bajic
Izvirni znanstveni članek
Oznake: friction-stir welding;welding parameters;metallography;mechanical test;numerical simulation;plinge stage;temperature;force;
This paper defines a set of welding parameters for the Friction-Stir Welding (FSW) of two forged panels of the alloy EN AW 7049A in a T652 temper and discusses the plunge stage of FSW using numerical modeling. This multi-component aluminum alloy is characterized by high strength, reduced plasticity ...
Leto: 2012 Vir: dLib.si Digitalna knjižnica Slovenije
Characterisation of high-carbon steel surface welded layer
Olivera Popović, Radica Prokić-Cvetković, Aleksandar Sedmak, Vencislav Grabulov, Zijah Burzić, Marko Rakin
Izvirni znanstveni članek
Oznake: jeklo;navarjanje;mikrostruktura;bainit;železniške proge;
Leto: 2010 Vir: dLib.si Digitalna knjižnica Slovenije
Št. zadetkov: 4
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