<abstract xmlns="http://www.w3.org/1999/xhtml">
This paper presents the numerical evaluation of mixed stress intensity factors (SIFs) and non-singular terms of William's series (T-stress) of functionally graded materials (FGMs) using three-dimensional extended finite element method (3D-XFEM). Four-point bending specimen with crack perpendicular to material gradation have been used in this investigation in order to study the effect of some parameters (crack position, crack size, specimen thickness) on the failure of FGMs materials. The fracture parameters (KI KII, phase angle ψ and T-stress) obtained by the present simulation are compared with available experimental and numerical results. An excellent correlation was found of the 3D-XFEM simulations with those available in the literature. From the numerical results, a fitting procedure is performed in order to propose an analytical formulation and subsequently are validated against the 3D-XFEM results.
</abstract>

This paper presents the numerical evaluation of mixed stress intensity factors (SIFs) and non-singular terms of William's series (T-stress) of functionally graded materials (FGMs) using three-dimensional extended finite element method (3D-XFEM). Four-point bending specimen with crack perpendicular to material gradation have been used in this investigation in order to study the effect of some parameters (crack position, crack size, specimen thickness) on the failure of FGMs materials. The fracture parameters (KI KII, phase angle ψ and T-stress) obtained by the present simulation are compared with available experimental and numerical results. An excellent correlation was found of the 3D-XFEM simulations with those available in the literature. From the numerical results, a fitting procedure is performed in order to propose an analytical formulation and subsequently are validated against the 3D-XFEM results.

Numerical Analysis of Fracture Behavior of Functionally Graded Materials using 3D-XFEM

Advances in Materials Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

This paper presents the numerical evaluation of mixed stress intensity factors (SIFs) and non-singular terms of William's series (T-stress) of functionally...

Numerical Analysis of Fracture Behavior of Functionally Graded Materials using 3D-XFEM

Publié en ligne: 14 sept. 2023

Pages: 33 - 46

Reçu: 01 juil. 2023

Accepté: 20 juil. 2023

DOI: https://doi.org/10.2478/adms-2023-0015

Mots clés
Functionally graded materials, Crack analysis, Maximum stress intensity factor, T-stress, Three-dimensional extended finite element method (3D-XFEM), Mixed mode, Phase angle

© 2023 Ali Benhamena et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Numerical Analysis of Fracture Behavior of Functionally Graded Materials using 3D-XFEM

Publié en ligne: 14 sept. 2023

Pages: 33 - 46

Reçu: 01 juil. 2023

Accepté: 20 juil. 2023

DOI: https://doi.org/10.2478/adms-2023-0015

Mots clésFunctionally graded materials, Crack analysis, Maximum stress intensity factor, T-stress, Three-dimensional extended finite element method (3D-XFEM), Mixed mode, Phase angle

© 2023 Ali Benhamena et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
Functionally graded materials, Crack analysis, Maximum stress intensity factor, T-stress, Three-dimensional extended finite element method (3D-XFEM), Mixed mode, Phase angle