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Using CZM and XFEM
to predict the damage to aluminum notched plates reinforced
with a composite patch
Mohammed Amine Bellali, Mohamed Mokhtari, Habib Benzaama, Fekirini Hamida, Boualem Serier and Kouider Madani |
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Vol. 15 (2020), No. 2, 185–201
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Abstract |
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The competition between the propagation of cracks in the plate and the detachment of the patch has been invested in this work. Our goal is to analyze the damage of a notched plate reinforced by a composite patch using FEM. The effect of several parameters of the plate/cohesive/patch structure was evaluated. These parameters concern: firstly, the composite patch such as its stacking sequence; secondly, for the plate we consider the size and shape of the notch; finally, the cohesive area that is conditioned by its resistance to the mechanism of damage. The effect and competition of these different parameters are evaluated and presented by both load-displacement curves and curves that show the competition between the detachment of the patch and the propagation of the crack in the plate. The calculations are performed with the ABAQUS numerical code using CZM cohesive elements for patch detachment and the XFEM technique for plate fracture. The results obtained illustrate the variation of the damage as a function of these parameters acting simultaneously: the resistance of the interface and the patch under the effect of the notch. Hence these levels of resistance condition the mechanism of damage between the propagation of the crack in the plate and the detachment of the patch. |
Keywords
repair technique, CZM (cohesive zone model), XFEM (Xtended
finite element method), adhesive type
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Milestones
Received: 1 June 2019
Revised: 8 January 2020
Accepted: 29 January 2020
Published: 8 April 2020
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Authors |
| Mohammed Amine Bellali | |
| Mechanical Engineering
Department Djillali Liabes University of Sidi Bel Abbes 22000 Sidi Bel Abbes Algeria |
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| Mohamed Mokhtari | |
| Mechanical Engineering
Department École Nationale Polytechnique Maurice Audin RTFM 31000 Oran Algeria |
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| Habib Benzaama | |
| Mechanical Engineering
Department École Nationale Polytechnique Maurice Audin LABAB 31000 Oran Algeria |
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| Fekirini Hamida | |
| Department of Mechanical
Engineering Djillali Liabes University of Sidi Bel Abbes 22000 Sidi Bel Abbes Algeria |
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| Boualem Serier | |
| Department of Mechanical
Engineering Djillali Liabes University of Sidi Bel Abbes LMPM 22000 Sidi Bel Abbes Algeria |
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| Kouider Madani | |
| Department of Mechanical
Engineering Djillali Liabes University of Sidi Bel Abbes LMPM 22000 Sidi Bel Abbes Algeria |
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