Ilyes Ben Naceur | Université de Technologie de Troyes (UTT) (original) (raw)
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Papers by Ilyes Ben Naceur
Advances in Applied Mathematics and Mechanics, 2015
In this paper, we present numerical computational methods for solving the fracture problem in bri... more In this paper, we present numerical computational methods for solving the fracture problem in brittle and ductile materials with no prior knowledge of the topology of crack path. Moreover, these methods are capable of modeling the crack initiation. We perform numerical simulations of pieces of brittle material based on global approach and taken into account the thermal effect in crack propagation. On the other hand, we propose also a numerical method for solving the fracture problem in a ductile material based on elements deletion method and also using thermo-mechanical behavior and damage laws. In order to achieve the last purpose, we simulate the orthogonal cutting process.
Revue des composites et des matériaux avancés, 2003
International Journal of Plasticity, 2009
International Journal of Plasticity journal homepage: www.elsevier.com/locate/ijplas recent cycli... more International Journal of Plasticity journal homepage: www.elsevier.com/locate/ijplas recent cyclic plasticity models. Int. J. Plasticity, 24, 1863-1889 The first model studied is a macro-scale, phenomenological, constitutive model originally proposed by . Modelization of the strain memory effect on the cyclic hardening of 316 stainless steel. In: Proceedings of the Fifth International Conference on SMiRT, Div. L, Berlin, Germany, L11/3.]. This model was systematically modified for incorporating strain-range dependent cyclic hardening-softening, and proportional and nonproportional loading memory parameters. The second model evaluated is a polycrystalline model originally proposed by Cailletaud . A micromechanical approach to inelastic behavior of metals. Int. J. Plasticity, 8, 55-73.] based on crystalline slip mechanisms. These two models are scrutinized against simulating hysteresis loop shape, cyclic hardening-softening, cross-effect, cyclic relaxation, subsequent cyclic softening and finally a broad set of ratcheting responses under uniaxial and biaxial loading histories. The modeling features which improved simulations for these responses are elaborated in the paper. In addition, a novel technique for simulating both the monotonic and cyclic responses with one set of model parameters is developed and validated.
Mécanique & Industries, 2005
Mécanique & Industries 6, 321329 (2005) c AFM, EDP Sciences 2005 DOI: 10.1051/meca:2... more Mécanique & Industries 6, 321329 (2005) c AFM, EDP Sciences 2005 DOI: 10.1051/meca:2005036 ... Modélisation mécanique et numérique de la mise en forme ... Ilyes Ben Naceur 1,2 , Abdelhakim Cherouat 1,a , Houman Borouchaki 1 ... 1 Laboratoire des syst`emes mécaniques et d' ...
Advances in Applied Mathematics and Mechanics, 2015
In this paper, we present numerical computational methods for solving the fracture problem in bri... more In this paper, we present numerical computational methods for solving the fracture problem in brittle and ductile materials with no prior knowledge of the topology of crack path. Moreover, these methods are capable of modeling the crack initiation. We perform numerical simulations of pieces of brittle material based on global approach and taken into account the thermal effect in crack propagation. On the other hand, we propose also a numerical method for solving the fracture problem in a ductile material based on elements deletion method and also using thermo-mechanical behavior and damage laws. In order to achieve the last purpose, we simulate the orthogonal cutting process.
Revue des composites et des matériaux avancés, 2003
International Journal of Plasticity, 2009
International Journal of Plasticity journal homepage: www.elsevier.com/locate/ijplas recent cycli... more International Journal of Plasticity journal homepage: www.elsevier.com/locate/ijplas recent cyclic plasticity models. Int. J. Plasticity, 24, 1863-1889 The first model studied is a macro-scale, phenomenological, constitutive model originally proposed by . Modelization of the strain memory effect on the cyclic hardening of 316 stainless steel. In: Proceedings of the Fifth International Conference on SMiRT, Div. L, Berlin, Germany, L11/3.]. This model was systematically modified for incorporating strain-range dependent cyclic hardening-softening, and proportional and nonproportional loading memory parameters. The second model evaluated is a polycrystalline model originally proposed by Cailletaud . A micromechanical approach to inelastic behavior of metals. Int. J. Plasticity, 8, 55-73.] based on crystalline slip mechanisms. These two models are scrutinized against simulating hysteresis loop shape, cyclic hardening-softening, cross-effect, cyclic relaxation, subsequent cyclic softening and finally a broad set of ratcheting responses under uniaxial and biaxial loading histories. The modeling features which improved simulations for these responses are elaborated in the paper. In addition, a novel technique for simulating both the monotonic and cyclic responses with one set of model parameters is developed and validated.
Mécanique & Industries, 2005
Mécanique & Industries 6, 321329 (2005) c AFM, EDP Sciences 2005 DOI: 10.1051/meca:2... more Mécanique & Industries 6, 321329 (2005) c AFM, EDP Sciences 2005 DOI: 10.1051/meca:2005036 ... Modélisation mécanique et numérique de la mise en forme ... Ilyes Ben Naceur 1,2 , Abdelhakim Cherouat 1,a , Houman Borouchaki 1 ... 1 Laboratoire des syst`emes mécaniques et d' ...