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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ayoub, Georges
Processes and Engineering in Mechanics and Materials
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2023Benchmarking the Tensile Properties of Polylactic Acid (PLA) Recycled Through Fused Granule Fabrication Additive Manufacturing
- 2023System Identification of Fused Filament Fabrication Additive Manufacturing Extrusion and Spreading Dynamics
- 2020Modeling the visco-hyperelastic–viscoplastic behavior of photodegraded semi-crystalline low-density polyethylene filmscitations
- 2020Effect of UV-aging on the mechanical and fracture behavior of low density polyethylenecitations
- 2018Effect of UV Ageing on the fatigue life of bulk polyethylenecitations
- 2018Effect of UV Ageing on the fatigue life of bulk polyethylenecitations
- 2016Microstructural observations and tensile fracture behavior of FSW twin roll cast AZ31 Mg sheetscitations
- 2016Mechanical, microstructural and fracture properties of dissimilar welds produced by friction stir welding of AZ31B and Al6061citations
- 2015Observations of the mechanical response and evolution of damage of AA 6061-T6 under different strain rates and temperaturescitations
- 2014A two-phase hyperelastic-viscoplastic constitutive model for semi-crystalline polymers: Application to polyethylene materials with a variable range of crystal fractionscitations
- 2012Fatigue life prediction of rubber-like materials under multiaxial loading using a continuum damage mechanics approach: Effects of two-blocks loading and R ratiocitations
- 2011Effects of crystal content on the mechanical behaviour of polyethylene under finite strains: Experiments and constitutive modellingcitations
- 2011A continuum damage model for the high-cycle fatigue life prediction of styrene-butadiene rubber under multiaxial loadingcitations
- 2010Modelling large deformation behaviour under loading–unloading of semicrystalline polymers: Application to a high density polyethylenecitations
- 2008Experimental study of chemo-mechanical response of amorphous poly(lactic acid) films exposed to UV irradiation
Places of action
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article
Modelling large deformation behaviour under loading–unloading of semicrystalline polymers: Application to a high density polyethylene
Abstract
International audience ; In this work, the large deformation behaviour under monotonic loading and unloading of a high density polyethylene (HDPE) is studied. To analyze the nonlinear time-dependent response of the material, mechanical tests were conducted at room temperature under constant true strain rates and stress relaxation conditions. A physically-based inelastic model written under finite strain formulation is proposed to describe the mechanical behaviour of HDPE. In the model, the inelastic mechanisms involve two parallel elements: a visco-hyperelastic network resistance acting in parallel with a viscoelastic–viscoplastic intermolecular resistance where the amorphous and crystalline phases are explicitly taken into consideration. The semicrystalline polymer is considered as a two-phase composite. The influence of the crystallinity on the loading and unloading behaviour is investigated. Numerical results are compared to experimental data. It is shown that the model is able to accurately reproduce the experimental observations corresponding to monotonic loading, unloading and stress relaxation behaviours at different strain levels. Finally, the model capabilities to capture cyclic loading–unloading behaviour up to large strains are discussed. To demonstrate the improved modelling capabilities, simulations are also performed using the original model of Boyce et al. [Boyce, M.C., Socrate, S., Llana, P.G., 2000. Constitutive model for the finite deformation stress–strain behavior of poly(ethylene terephthalate) above the glass transition. Polymer 41, 2183–2201] modified by Ahzi et al. [Ahzi, S., Makradi, A., Gregory, R.V., Edie, D.D., 2003. Modeling of deformation behavior and strain-induced crystallization in poly(ethylene terephthalate) above the glass transition temperature. Mechanics of Materials 35, 1139–1148].