Assessing gradient parameters for damage control in notched plates: Finite element analysis of locally functionally graded materials using the Gurson-Tvergaard-needleman (GTN) model
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Amir Slamene
[1]
;
Billel Hamza
[1]
;
Mohamed Mokhtari
[1]
;
Sadek Gouasmi
[1]
;
Rafik Medjahed
[1]
;
Abderraouf Ousidhoum
[1]
-
[1] Laboratory LaRTFM, Department of Mechanical Engineering, Ecole Nationale Polytechnique d'Oran Maurice Audin, Oran, Algeria
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- Localización: Mechanics based design of structures and machines, ISSN 1539-7734, Vol. 53, Nº. 2, 2025, págs. 1392-1428
- Idioma: inglés
- Enlaces
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Resumen
This study investigates functionally graded materials (FGMs) as reinforcement for notched plates prone to crack propagation. Using a novel meshing technique and the Gurson-Tvergaard-Needleman damage model within ABAQUS-Explicit, we explore how various gradation parameters affect material damage under stress. The model, incorporating Von Mises stress theory and Voce hardening law, simulates plastic flow and progressive damage from void dynamics. Validated against experimental data, our findings reveal that local gradation parameters significantly influence void damage and structural performance of notched components. This research provides crucial insights into FGMs' potential to enhance structural integrity in engineering applications involving notched structures.
