2023Journal Article ER1 Auteurs : Yan, Zhu; Zaïri, Fahmi; Zaoui, Ali Multiscale modeling of the strain-induced induced α → β phase transition and piezoelectric activity in semi-crystalline poly(vinylidene fluoride) over a large-strain range In: Mechanics of Materials, vol. 182, pp. 104666, 2023, (ACL). Links @article{yan:hal-04129697,
title = {Multiscale modeling of the strain-induced induced α → β phase transition and piezoelectric activity in semi-crystalline poly(vinylidene fluoride) over a large-strain range},
author = {Zhu Yan and Fahmi Zaïri and Ali Zaoui},
url = {https://hal.science/hal-04129697},
doi = {10.1016/j.mechmat.2023.104666},
year = {2023},
date = {2023-07-01},
urldate = {2023-07-01},
journal = {Mechanics of Materials},
volume = {182},
pages = {104666},
publisher = {Elsevier},
note = {ACL},
keywords = {ER1},
pubstate = {published},
tppubtype = {article}
}
|
2023Journal Article ER1 Auteurs : Yan, Zhu; Zaoui, Ali; Zaïri, Fahmi Physical and mechanical properties of vulcanized and filled rubber at high strain rate In: Chinese Journal of Physics, vol. 86, pp. 12-23, 2023, (ACL). Links @article{yan:hal-04297283,
title = {Physical and mechanical properties of vulcanized and filled rubber at high strain rate},
author = {Zhu Yan and Ali Zaoui and Fahmi Zaïri},
url = {https://hal.science/hal-04297283},
doi = {10.1016/j.cjph.2023.09.010},
year = {2023},
date = {2023-12-01},
urldate = {2023-12-01},
journal = {Chinese Journal of Physics},
volume = {86},
pages = {12-23},
publisher = {Physical Society of the Republic of China},
note = {ACL},
keywords = {ER1},
pubstate = {published},
tppubtype = {article}
}
|
2022Journal Article ER1 Auteurs : Yan, Zhu; Guo, Qiang; Zaïri, Fahmi; Zaoui, Ali A multi-scale plastic-damage model for strain-induced morphological anisotropy in semi-crystalline polyethylene In: International Journal of Non-Linear Mechanics, vol. 147, pp. 104238, 2022, ISSN: 0020-7462, (ACL). Abstract | Links @article{YAN2022104238,
title = {A multi-scale plastic-damage model for strain-induced morphological anisotropy in semi-crystalline polyethylene},
author = {Zhu Yan and Qiang Guo and Fahmi Zaïri and Ali Zaoui},
url = {https://www.sciencedirect.com/science/article/pii/S0020746222002086},
doi = {https://doi.org/10.1016/j.ijnonlinmec.2022.104238},
issn = {0020-7462},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
journal = {International Journal of Non-Linear Mechanics},
volume = {147},
pages = {104238},
abstract = {In this article, we present a multi-scale plastic-damage model for strain-induced morphological anisotropy in semi-crystalline polyethylene formulated within a continuum-based micromechanical framework. The crystallographic shear in the crystalline lamellae and the molecular alignment/relaxation of the amorphous phase are two underlying inelastic processes integrated in the constitutive representation. The cavitation damage accumulation related to the progressive nucleation and anisotropic growth of nano-sized cavities in the amorphous phase is also integrated and treated separately for the elastic–viscoplastic intermolecular interactions and for the viscohyperelastic network interactions. The mechanical coupling between the deformation modes in the amorphous and crystalline domains is obtained by considering the crystalline–amorphous interfacial interaction in the micro-macro homogenization procedure. We compare the model output to tensile experimental observations from the literature of high-density polyethylene, in terms of stress–strain response and inelastic volumetric strain, during stretching and stretching-retraction-recovery sequences upon large-strain plastic deformation at different strain rates and temperatures. We analyze the effect of strain-induced morphological anisotropy on the internal cavitation damage distributions by means of pole figures. The key role of the cavitation damage on the macroscopic and internal responses is studied.},
note = {ACL},
keywords = {ER1},
pubstate = {published},
tppubtype = {article}
}
In this article, we present a multi-scale plastic-damage model for strain-induced morphological anisotropy in semi-crystalline polyethylene formulated within a continuum-based micromechanical framework. The crystallographic shear in the crystalline lamellae and the molecular alignment/relaxation of the amorphous phase are two underlying inelastic processes integrated in the constitutive representation. The cavitation damage accumulation related to the progressive nucleation and anisotropic growth of nano-sized cavities in the amorphous phase is also integrated and treated separately for the elastic–viscoplastic intermolecular interactions and for the viscohyperelastic network interactions. The mechanical coupling between the deformation modes in the amorphous and crystalline domains is obtained by considering the crystalline–amorphous interfacial interaction in the micro-macro homogenization procedure. We compare the model output to tensile experimental observations from the literature of high-density polyethylene, in terms of stress–strain response and inelastic volumetric strain, during stretching and stretching-retraction-recovery sequences upon large-strain plastic deformation at different strain rates and temperatures. We analyze the effect of strain-induced morphological anisotropy on the internal cavitation damage distributions by means of pole figures. The key role of the cavitation damage on the macroscopic and internal responses is studied. |
2022Journal Article ER1 Auteurs : Yan, Zhu; Zaoui, Ali; Zaïri, Fahmi Uniaxial stretching and shape memory behavior of branched amorphous polyethylene In: Chinese Journal of Physics, vol. 79, pp. 6-12, 2022, ISSN: 0577-9073, (ACL). Abstract | Links @article{YAN20226,
title = {Uniaxial stretching and shape memory behavior of branched amorphous polyethylene},
author = {Zhu Yan and Ali Zaoui and Fahmi Zaïri},
url = {https://www.sciencedirect.com/science/article/pii/S0577907322001927},
doi = {https://doi.org/10.1016/j.cjph.2022.07.012},
issn = {0577-9073},
year = {2022},
date = {2022-01-01},
urldate = {2022-01-01},
journal = {Chinese Journal of Physics},
volume = {79},
pages = {6-12},
abstract = {The current work investigates the effects of branching and temperature on the mechanical properties and shape memory properties of branched polyethylene. The results show that the mechanical properties of low density polyethylene are strongly influenced by the length, number and temperature of the branched chains. The lower the temperature, the lower the modulus of elasticity. When the length is longer and the number is smaller, the stress in the hardening phase is higher. For shape memory properties, we found that the fewer and shorter the branched chains, the better the shape memory properties, and the shape memory behavior can promote the repolymerization and crystallization of the structure, which will cause the enhancement of stress hardening.},
note = {ACL},
keywords = {ER1},
pubstate = {published},
tppubtype = {article}
}
The current work investigates the effects of branching and temperature on the mechanical properties and shape memory properties of branched polyethylene. The results show that the mechanical properties of low density polyethylene are strongly influenced by the length, number and temperature of the branched chains. The lower the temperature, the lower the modulus of elasticity. When the length is longer and the number is smaller, the stress in the hardening phase is higher. For shape memory properties, we found that the fewer and shorter the branched chains, the better the shape memory properties, and the shape memory behavior can promote the repolymerization and crystallization of the structure, which will cause the enhancement of stress hardening. |
2021Journal Article ER1 Auteurs : Yan, Zhu; Zaoui, Ali; Zaïri, Fahmi Crystallization and mechanical behavior of semi-crystalline polyethylene In: Physica Scripta, vol. 96, no. 12, pp. 125729, 2021, (ACL). Links @article{yan:hal-03770144,
title = {Crystallization and mechanical behavior of semi-crystalline polyethylene},
author = {Zhu Yan and Ali Zaoui and Fahmi Zaïri},
url = {https://hal.archives-ouvertes.fr/hal-03770144},
doi = {10.1088/1402-4896/ac3a4f},
year = {2021},
date = {2021-12-01},
urldate = {2021-12-01},
journal = {Physica Scripta},
volume = {96},
number = {12},
pages = {125729},
publisher = {IOP Publishing},
note = {ACL},
keywords = {ER1},
pubstate = {published},
tppubtype = {article}
}
|
2021Journal Article ER1 Auteurs : Yan, Zhu; Guo, Qiang; Zaïri, Fahmi; Zaoui, Ali; Jiang, Qifeng; Liu, Xiaobing Continuum-based modeling large-strain plastic deformation of semi-crystalline polyethylene systems: Implication of texturing and amorphicity In: Mechanics of Materials, vol. 162, pp. 104060, 2021, (ACL). Links @article{yan:hal-03771204,
title = {Continuum-based modeling large-strain plastic deformation of semi-crystalline polyethylene systems: Implication of texturing and amorphicity},
author = {Zhu Yan and Qiang Guo and Fahmi Zaïri and Ali Zaoui and Qifeng Jiang and Xiaobing Liu},
url = {https://hal.archives-ouvertes.fr/hal-03771204},
doi = {10.1016/j.mechmat.2021.104060},
year = {2021},
date = {2021-11-01},
urldate = {2021-11-01},
journal = {Mechanics of Materials},
volume = {162},
pages = {104060},
publisher = {Elsevier},
note = {ACL},
keywords = {ER1},
pubstate = {published},
tppubtype = {article}
}
|
2021Journal Article ER1 Auteurs : Mesbah, Amar; Elmeguenni, Mohamed; Yan, Zhu; Zaïri, Fahmi; Ding, Ning; Gloaguen, Jean-Michel How stress triaxiality affects cavitation damage in high-density polyethylene: Experiments and constitutive modeling In: Polymer Testing, vol. 100, pp. 107248, 2021, (ACL). Links @article{mesbah:hal-03772243,
title = {How stress triaxiality affects cavitation damage in high-density polyethylene: Experiments and constitutive modeling},
author = {Amar Mesbah and Mohamed Elmeguenni and Zhu Yan and Fahmi Zaïri and Ning Ding and Jean-Michel Gloaguen},
url = {https://hal.archives-ouvertes.fr/hal-03772243},
doi = {10.1016/j.polymertesting.2021.107248},
year = {2021},
date = {2021-08-01},
urldate = {2021-08-01},
journal = {Polymer Testing},
volume = {100},
pages = {107248},
publisher = {Elsevier},
note = {ACL},
keywords = {ER1},
pubstate = {published},
tppubtype = {article}
}
|
2021Journal Article ER1 Auteurs : Barkallah, Rachida; Taktak, Rym; Yan, Zhu; Zaïri, Fahmi; Guermazi, Noamen; Bouaziz, Jamel; Zaïri, Fahed Fracture behavior of Alumina-Tricalcium phosphate-Titania composites for bone tissue reconstruction In: Engineering Fracture Mechanics, vol. 255, pp. 107959, 2021, (ACL). Links @article{barkallah:hal-03772480,
title = {Fracture behavior of Alumina-Tricalcium phosphate-Titania composites for bone tissue reconstruction},
author = {Rachida Barkallah and Rym Taktak and Zhu Yan and Fahmi Zaïri and Noamen Guermazi and Jamel Bouaziz and Fahed Zaïri},
url = {https://hal.archives-ouvertes.fr/hal-03772480},
doi = {10.1016/j.engfracmech.2021.107959},
year = {2021},
date = {2021-10-01},
urldate = {2021-10-01},
journal = {Engineering Fracture Mechanics},
volume = {255},
pages = {107959},
publisher = {Elsevier},
note = {ACL},
keywords = {ER1},
pubstate = {published},
tppubtype = {article}
}
|
