TY  - JOUR
AU  - Đurđević, Andrijana
AU  - Zivojinović, Danijela
AU  - Grbović, Aleksandar
AU  - Sedmak, Aleksandar
AU  - Rakin, Marko
AU  - Dascau, Horia
AU  - Kirin, Snežana
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3056
AB  - In this work, fatigue crack propagation in thin-walled aluminium alloy structure with two friction stir welded T joints has been simulated numerically. Crack propagation in stiffened part of the structure between two friction stir welded T joints is analysed by using the eXtended Finite Element Method (XFEM), including software ABAQUS, as well as MORFEO, for modelling and results display. Tensile fatigue loading is applied, with stress ratio R = 0, and maximum stress sigma(max) = 10 MPa. Material properties (Al 2024-T351, as used in aeronautical industry) in different welded joints zones are adopted from available literature data. Following results are obtained by numerical analysis: stress-strain and displacement state in the structure, position of the crack tip and value of stress intensity factor for every crack propagation step, as well as the structural life estimation, i.e. number of load cycles, N, also for each crack propagation step. Using these results the number of cycles at which the crack starts to propagate in an unstable manner is predicted.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Engineering Failure Analysis
T1  - Numerical simulation of fatigue crack propagation in friction stir welded joint made of Al 2024-T351 alloy
EP  - 484
SP  - 477
VL  - 58
DO  - 10.1016/j.engfailanal.2015.08.028
ER  - 

@article{
author = "Đurđević, Andrijana and Zivojinović, Danijela and Grbović, Aleksandar and Sedmak, Aleksandar and Rakin, Marko and Dascau, Horia and Kirin, Snežana",
year = "2015",
abstract = "In this work, fatigue crack propagation in thin-walled aluminium alloy structure with two friction stir welded T joints has been simulated numerically. Crack propagation in stiffened part of the structure between two friction stir welded T joints is analysed by using the eXtended Finite Element Method (XFEM), including software ABAQUS, as well as MORFEO, for modelling and results display. Tensile fatigue loading is applied, with stress ratio R = 0, and maximum stress sigma(max) = 10 MPa. Material properties (Al 2024-T351, as used in aeronautical industry) in different welded joints zones are adopted from available literature data. Following results are obtained by numerical analysis: stress-strain and displacement state in the structure, position of the crack tip and value of stress intensity factor for every crack propagation step, as well as the structural life estimation, i.e. number of load cycles, N, also for each crack propagation step. Using these results the number of cycles at which the crack starts to propagate in an unstable manner is predicted.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Engineering Failure Analysis",
title = "Numerical simulation of fatigue crack propagation in friction stir welded joint made of Al 2024-T351 alloy",
pages = "484-477",
volume = "58",
doi = "10.1016/j.engfailanal.2015.08.028"
}

Đurđević, A., Zivojinović, D., Grbović, A., Sedmak, A., Rakin, M., Dascau, H.,& Kirin, S.. (2015). Numerical simulation of fatigue crack propagation in friction stir welded joint made of Al 2024-T351 alloy. in Engineering Failure Analysis
Pergamon-Elsevier Science Ltd, Oxford., 58, 477-484.
https://doi.org/10.1016/j.engfailanal.2015.08.028

Đurđević A, Zivojinović D, Grbović A, Sedmak A, Rakin M, Dascau H, Kirin S. Numerical simulation of fatigue crack propagation in friction stir welded joint made of Al 2024-T351 alloy. in Engineering Failure Analysis. 2015;58:477-484.
doi:10.1016/j.engfailanal.2015.08.028 .

Đurđević, Andrijana, Zivojinović, Danijela, Grbović, Aleksandar, Sedmak, Aleksandar, Rakin, Marko, Dascau, Horia, Kirin, Snežana, "Numerical simulation of fatigue crack propagation in friction stir welded joint made of Al 2024-T351 alloy" in Engineering Failure Analysis, 58 (2015):477-484,
https://doi.org/10.1016/j.engfailanal.2015.08.028 . .

TY  - JOUR
AU  - Zivojinović, Danijela
AU  - Đurđević, Andrijana
AU  - Grbović, Aleksandar
AU  - Sedmak, Aleksandar
AU  - Rakin, Marko
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2802
AB  - In this work, fatigue crack propagation in thin-walled aluminium alloy structure with two friction stir welded (FSW) joints has been numerically modelled. Crack propagation in unstiffened part of the structure between two FSW joints is analyzed. Numerical method, so-called eXtended Finite Element Method (XFEM) has been used, including software Abaqus, as well as Morfeo, for modelling and results display. Tensile fatigue loading is applied, with stress ratio R=0. The analyzed model is made from aluminium alloy 2024-T351. Material properties in joints zones and geometry measures of FSW joint are adopted from available experiments. Following results are obtained by numerical analysis: stress-displacement state in the structure, where special attention is dedicated to the crack tip zone, coordinates of the crack front (x, y, z) for every propagation step, distributions of stress intensity factors - K-I, K-II, K-III and K-eq along the crack front for each propagation step, structural life in form of change of applied number of load cycles, N, for each step of propagation. Besides numerical results, Abaqus provides visualization of crack propagation in the structure. On the basis of obtained data, analysis of crack growth stability is done.
PB  - Elsevier Science Bv, Amsterdam
T2  - 20th European Conference on Fracture
T1  - Numerical modelling of crack propagation in friction stir welded joint made of aluminium alloy
EP  - 1335
SP  - 1330
VL  - 3
DO  - 10.1016/j.mspro.2014.06.215
ER  - 

@article{
author = "Zivojinović, Danijela and Đurđević, Andrijana and Grbović, Aleksandar and Sedmak, Aleksandar and Rakin, Marko",
year = "2014",
abstract = "In this work, fatigue crack propagation in thin-walled aluminium alloy structure with two friction stir welded (FSW) joints has been numerically modelled. Crack propagation in unstiffened part of the structure between two FSW joints is analyzed. Numerical method, so-called eXtended Finite Element Method (XFEM) has been used, including software Abaqus, as well as Morfeo, for modelling and results display. Tensile fatigue loading is applied, with stress ratio R=0. The analyzed model is made from aluminium alloy 2024-T351. Material properties in joints zones and geometry measures of FSW joint are adopted from available experiments. Following results are obtained by numerical analysis: stress-displacement state in the structure, where special attention is dedicated to the crack tip zone, coordinates of the crack front (x, y, z) for every propagation step, distributions of stress intensity factors - K-I, K-II, K-III and K-eq along the crack front for each propagation step, structural life in form of change of applied number of load cycles, N, for each step of propagation. Besides numerical results, Abaqus provides visualization of crack propagation in the structure. On the basis of obtained data, analysis of crack growth stability is done.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "20th European Conference on Fracture",
title = "Numerical modelling of crack propagation in friction stir welded joint made of aluminium alloy",
pages = "1335-1330",
volume = "3",
doi = "10.1016/j.mspro.2014.06.215"
}

Zivojinović, D., Đurđević, A., Grbović, A., Sedmak, A.,& Rakin, M.. (2014). Numerical modelling of crack propagation in friction stir welded joint made of aluminium alloy. in 20th European Conference on Fracture
Elsevier Science Bv, Amsterdam., 3, 1330-1335.
https://doi.org/10.1016/j.mspro.2014.06.215

Zivojinović D, Đurđević A, Grbović A, Sedmak A, Rakin M. Numerical modelling of crack propagation in friction stir welded joint made of aluminium alloy. in 20th European Conference on Fracture. 2014;3:1330-1335.
doi:10.1016/j.mspro.2014.06.215 .

Zivojinović, Danijela, Đurđević, Andrijana, Grbović, Aleksandar, Sedmak, Aleksandar, Rakin, Marko, "Numerical modelling of crack propagation in friction stir welded joint made of aluminium alloy" in 20th European Conference on Fracture, 3 (2014):1330-1335,
https://doi.org/10.1016/j.mspro.2014.06.215 . .