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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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Monteiro, Eric
Processes and Engineering in Mechanics and Materials
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2023Hybrid twin of RTM process at the scarce data limitcitations
- 2022Effect of water sorption in neat poly(ether ketone ketone) and its carbon fiber reinforced composite
- 2022Design and control of a new electrostrictive polymer based continuum actuator for endoscopic robot ; JIMSScitations
- 2022Experimental Damage Localization and Quantification with a Numerically Trained Convolutional Neural Network
- 2021Viscoelastic homogenization of 3D woven composites with damping validation in temperature and verification of scale separationcitations
- 2020Simulation of the Injection Stretch Blow Moulding Process: an Anisotropic Visco-hyperelastic Model for PET Behaviorcitations
- 2019Representative volume element size determination for viscoplastic properties in polycrystalline materialscitations
- 2019Representative volume element size determination for viscoplastic properties in polycrystalline materialscitations
- 2019Prediction and sensitivity analysis of bubble dissolution time in 3D selective laser sintering using ensemble decision treescitations
- 2019Investigation of nonlinear Lamb wave/damage interaction: numerical and experimental approaches
- 2018Representative volume element size determination for viscoplastic properties in polycrystalline materialscitations
- 2017Self Heating during Stretch Blow Molding: an Experimental Numerical Comparison
- 2016An Anisotropic Visco-hyperelastic model for PET Behavior under ISBM Process Conditions
- 2015An Anisotropic Modeling of the Visco-hyperelastic Behaviour of PET under ISBM Process Conditions
- 2014Basis for viscoelastic modelling of polyethylene terephthalate (PET) near Tg with parameter identification from multi-axial elongation experimentscitations
- 2012Numerical Simulation of the Viscohyperelastic Behaviour of PET near the Glass Transition Temperature
- 2011Identification of a Visco-Elastic Model for PET Near Tg Based on Uni and Biaxial Results
Places of action
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conferencepaper
Identification of a Visco-Elastic Model for PET Near Tg Based on Uni and Biaxial Results
Abstract
The mechanical response of Polyethylene Terephthalate (PET) in elongation is strongly dependent on temperature, strain and strain rate. Near the glass transition temperature Tg, the stress-strain curve presents a strain softening effect vs strain rate but a strain hardening effect vs strain under conditions of large deformations. The main goal of this work is to propose a viscoelastic model to predict the PET behaviour when subjected to large deformations and to determine the material properties from the experimental data. The viscoelastic model is written in a Leonov like way and the variational formulation is carried out for the numerical simulation using this model. To represent the non-linear effects, an elastic part depending on the elastic equivalent strain and a non-Newtonian viscous part depending on both viscous equivalent strain rate and cumulated viscous strain are tested. The model parameters can then be accurately obtained through the comparison with the experimental uniaxial and biaxial tests.