 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 12949 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8096
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| In English (Mech. Solids): | | 4853 |
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| A. Boulenouar, M.A. Bouchelarm, M. Chafi, and N. Benseddiq, "Mixed-Mode Fracture Criterion in Alumina/Zirconia FGMs Using Finite Element Analysis," Mech. Solids. 59 (4), 2407-2423 (2024) |
| Year |
2024 |
Volume |
59 |
Number |
4 |
Pages |
2407-2423 |
| DOI |
10.1134/S0025654424604622 |
| Title |
Mixed-Mode Fracture Criterion in Alumina/Zirconia FGMs Using Finite Element Analysis |
| Author(s) |
A. Boulenouar (Laboratoire de Matériaux et Systèmes Réactifs, Djillali Liabes University of Sidi Bel-Abbes, Sidi Bel-Abbes, 22000 Algeria)
M.A. Bouchelarm (Laboratoire de Matériaux et Systèmes Réactifs, Djillali Liabes University of Sidi Bel-Abbes, Sidi Bel-Abbes, 22000 Algeria, m.bouchelarm@yahoo.com)
M. Chafi (Laboratoire de Matériaux et Systèmes Réactifs, Djillali Liabes University of Sidi Bel-Abbes, Sidi Bel-Abbes, 22000 Algeria)
N. Benseddiq (Unité de Mécanique de Lille, EA 7512 UML, University of Lille, Lille, 59000 France) |
| Abstract |
This study examines the mixed-mode fracture criterion for Alumina/Zirconia functionally
graded materials (FGMs), based on the concept of the equivalent stress intensity factors Keq. For this
purpose, a computational algorithm is developed and incorporated into a finite element software,
using a combination of five methods (FE method, Crack box technique CBT, Displacement extrapolation technique DET, Crack propagation criteria and Tanaka’s approach), in order to then determine
the critical loading necessary to control the risk of crack propagation, as well as the determination of
the different parameters (Stress intensity factors SIFs, bifurcation angle and T-stress). The mechanical
properties of the Alumina/Zirconia FGM are supposed to change gradually through the cracked plate width, according to an exponential law (E-FGM). The continuous variation in material properties for
Alumina/Zirconia FGMs is addressed by defining these properties at the centroid of each finite element. The proposed fracture criterion was identified according to the geometry of the specimen, the
loading conditions and the mechanical properties of the FGM material. The frontier of crack propagation given by the proposed criterion is well defined and excellent results are obtained under pure
mode-I and mixed-mode loadings. |
| Keywords |
Functionally graded materials, Fracture criterion, Alumina/Zirconia FGM, Equivalent stress intensity factors, Tanaka’s approach, Finite element method |
| Received |
13 July 2024 | Revised |
18 September 2024 | Accepted |
19 September 2024 |
| Link to Fulltext |
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