Numerical Modelling of Crack Propagation in Friction Stir Welded Joint Made of Aluminium Alloy

Živojinović, Danijela; Đurđević, Andrijana; Grbović, Aleksandar; Sedmak, Aleksandar; Rakin, Marko

doi:10.1016/j.mspro.2014.06.215

Cited by 10 publications

(7 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…9) on both the advancing and retreating sides, consistent with the symmetrically distributed residual stresses. The central crack propagation turned out to be responsible for specimen failure, with related K I values (mode II and III are almost negligible) approaching the material fracture toughness [19] (as soon as the crack evolves all the way through the thickness a further sharp increase of SIFs along the crack front is expected). On the contrary, SIFs along the lateral crack front, as computed using the J-integral approach [41], were not sufficiently high as compared to the threshold (K maxth =3352014 Pa*m 0.5 ) to produce appreciable crack advances ( Fig.…”

Section: Crack Propagationmentioning

confidence: 98%

See 1 more Smart Citation

Multiple crack growth prediction in AA2024-T3 friction stir welded joints, including manufacturing effects

Carlone

Citarella

Sonne

et al. 2016

International Journal of Fatigue

View full text Add to dashboard Cite

A great deal of attention is currently paid by several industries toward the friction stir welding process to realize lightweight structures. Within this aim, the realistic prediction of fatigue behavior of welded assemblies is a key factor. In this work an integrated finite element method–dual boundary element method (FEM–DBEM) procedure, coupling the welding process simulation to the subsequent crack growth assessment, is proposed and applied to simulate multiple crack propagation, with allowance for manufacturing effects. The friction stir butt welding process of the precipitation hardened AA2024-T3 alloy was simulated using a thermo-mechanical FEM model to predict the process induced residual stress field and material softening. The computed stress field was transferred to a DBEM environment and superimposed to the stress field produced by a remote fatigue traction load applied on a notched specimen. The whole procedure was finally tested comparing simulation outcomes with experimental data. The good agreement obtained highlights the predictive capability of the method. The influence of the residual stress distribution on crack growth and the mutual interaction between propagating cracks were analyzed as well

show abstract

Section: Crack Propagationmentioning

confidence: 98%

“…Recently, some attempts to numerically assess the fatigue behavior in friction stir welded structures were discussed in literature [19][20][21][22][23][24]. In [20] an approach based on the Boundary Element Method (BEM) was adopted for crack growth simulation.…”

Section: Introductionmentioning

confidence: 99%

Multiple crack growth prediction in AA2024-T3 friction stir welded joints, including manufacturing effects

Carlone

Citarella

Sonne

et al. 2016

International Journal of Fatigue

View full text Add to dashboard Cite

show abstract

“…Comparison with previously described case of crack propagation in a simple (not reinforced) plate, described in [14], indicates somewhat different values for the stress intensity factors and number of cycles. Anyhow, since the stable crack propagation phase was over before the crack has reached the stiffeners, their influence is negligible in this case, and remains to be further investigated.…”

Section: Discussionmentioning

confidence: 68%

Numerical simulation of fatigue crack propagation in friction stir welded joint made of Al 2024-T351 alloy

Đurđević

Živojinović²,

Grbović

et al. 2015

Engineering Failure Analysis

Self Cite

View full text Add to dashboard Cite

“…The analysis of the results has shown that the obtained solutions can be used for the prediction of SIFs of analyzed and acceptable accuracy; well defined mesh, and well-set boundary conditions, 3D simulation of a typical 2D problem by using the XFEM gives very good results [13]. The application of various numerical methods is discretized for 2D and 3D structure models, by considering fracture mechanics laws and enables solving the problems in comfortable manner [14] Crack propagation in un stiffened part of the structure among two Friction stir welded joints are analyzed in this Numerical method XEFM method has been used [15].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Ti-6Al-4V cruciform welded joints subjected to fatigue load using XFEM

Vempati¹,

Raju²,

Subbaiah

2019

JMES

View full text Add to dashboard Cite

The stress distribution of cruciform shape welded joints is analyzed by finite element codes ABAQUS. Welded joints with various weld shapes and sizes are investigated to estimate the fatigue life of different joints. The fatigue behavior is evaluated under constant amplitude loading (R=0.1). The aim of this work is fatigue behavior evaluation of fillet welded cruciform joint for different weld geometry. The weld geometry are considered: concave, convex and flat weld shape of different weld sizes. The stress intensity factor (SIF) of a TI 6AL4V, is calculated by using Extended finite element method (XFEM) in ABAQUS software. Simulations of fatigue life for different weld shapes at different stresses are analyzed and crack initiations are identified the number of severe fatigue life cycles which are obtained are very close to the theoretical values. In present study the importance of XEFM method is recognized to predict the crack growth rate for convex specimen which is subjected maximum fatigue stress.

show abstract

Numerical Modelling of Crack Propagation in Friction Stir Welded Joint Made of Aluminium Alloy

Cited by 10 publications

References 4 publications

Multiple crack growth prediction in AA2024-T3 friction stir welded joints, including manufacturing effects

Multiple crack growth prediction in AA2024-T3 friction stir welded joints, including manufacturing effects

Numerical simulation of fatigue crack propagation in friction stir welded joint made of Al 2024-T351 alloy

Simulation of Ti-6Al-4V cruciform welded joints subjected to fatigue load using XFEM

Contact Info

Product

Resources

About