Mixed-mode fatigue crack propagation simulation by means of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si12.svg"><mml:msub><mml:mi>G</mml:mi><mml:mrow><mml:mi mathvariant="italic">eq</mml:mi></mml:mrow></mml:msub></mml:math> and walker models of the structural steel S355

Xin, Haohui; Liu, Jielin; Correia, José A.F.O.; Berto, Filippo; Veljković, Milan; Qian, Guian

doi:10.1016/j.tafmec.2022.103717

Cited by 8 publications

(3 citation statements)

References 31 publications

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“…The extended finite element method (XFEM) which is an extension of conventional finite element method is an alternative for conforming mesh of modeling discontinuities [29].…”

Section: Xfem-high Cycle Fatigue Modelmentioning

confidence: 99%

Progressive Damage and Crack Propagation Analysis of Composite-Patched Aluminum Plate with 3D Inclined Crack under Fatigue Loading

Eidan,

Kabir

2024

Scientia Iranica

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Fatigue crack growth and damage of adhesive layer in a composite-patched aluminum plate with three dimensional inclined crack was simulated using Extended Finite Element Method (XFEM) and Cohesive Zone Model (CZM). A Python script was developed to model fatigue crack growth using XFEM in ABAQUS environment. Three adhesive materials and five patch lay-up sequences were considered to investigate the size and shape of damaged (debonded) region in different configurations. The effect of including damage in adhesive layer on global response of the structure and 3D crack geometry in metallic structure was studied. The interaction between crack growth in bulk material and damage in adhesive layer was discussed. It was concluded that neglecting damage in adhesive layer results in 8.4 to 23.2 percent overestimated fatigue life for different sample configuration. Smoother crack geometry was obtained from damage-including models with respect to models that do not include damage. Crack front shape was also highly affected, despite the fact that the effect on crack trajectory was not significant. It was also observed that in specimens with lower final strength and high ductility adhesive, structural response is resulted from an interaction between damage in adhesive and crack growth in bulk material.

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“…The extended finite element method (XFEM) which is an extension of conventional finite element method is an alternative for conforming mesh of modeling discontinuities [29].…”

Section: Xfem-high Cycle Fatigue Modelmentioning

confidence: 99%

Progressive Damage and Crack Propagation Analysis of Composite-Patched Aluminum Plate with 3D Inclined Crack under Fatigue Loading

Eidan,

Kabir

2024

Scientia Iranica

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“…The numerical simulation of fatigue crack initiation can be realised by combining the XFEM model and the Smith-Watson-Topper (SWT) multiaxial fatigue damage criterion [14]. The numerical simulation of fatigue crack propagation can be realised by the combination of the XFEM model and the Walker equation [15][16].…”

Section: Numerical Models For Fatigue Crack Initiation and Propagationmentioning

confidence: 99%

“…The extended finite element method (XFEM) can effectively simulate the fatigue crack initiation and propagation of structures under complex stress conditions [14][15][16]. In the XFEM model, the numerical simulation of fatigue cracks is realised through the combination of real and virtual nodes.…”

Section: Numerical Models For Fatigue Crack Initiation and Propagationmentioning

confidence: 99%

Recent progress in computational predictions on fatigue and fracture resistance of steel connection joints

Xin

2023

ce papers

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Steel structures are often subjected to cyclic loads, and sometimes to monotonic overloads, during the technical lifetime, which causes their performance degradation. Incidentally, they undergo progressive collapse, especially due to local failure of connections or joints. To ensure the overall integrity of the steel structures and to make sure the efficient transfer of the load between different components, it is necessary to evaluate the ultimate capacity and fatigue resistance of steel connections. Advances in material modelling and well‐controlled experiments at various scales in recent years have increased confidence in the finite element method as an effective way to predict the ultimate resistance and fatigue life. On examples of two common steel connections: bolted connection and welded connection, the recent progress will be presented in ductile fracture and fatigue crack initiation and propagation simulation.

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XFEM based study on fatigue performance of rib-to-diaphragm welded joints considering initial defects

Jiang,

Cao,

Qiang

et al. 2024

Engineering Failure Analysis

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Mixed-mode fatigue crack propagation simulation by means of Geq and walker models of the structural steel S355

Cited by 8 publications

References 31 publications

Progressive Damage and Crack Propagation Analysis of Composite-Patched Aluminum Plate with 3D Inclined Crack under Fatigue Loading

Progressive Damage and Crack Propagation Analysis of Composite-Patched Aluminum Plate with 3D Inclined Crack under Fatigue Loading

Recent progress in computational predictions on fatigue and fracture resistance of steel connection joints

XFEM based study on fatigue performance of rib-to-diaphragm welded joints considering initial defects

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