| People | Locations | Statistics |
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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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Hao, Pei
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Advancing the characterization of recycled polyolefin blends with a combined experimental and numerical approach to thermomechanical behaviorcitations
- 2024Challenges and solutions to assess the real true stress – true strain response of pure and recycled polymers under large strains
- 2023Characterizing Pure Polymers under High Speed Compression for the Micromechanical Prediction of Unidirectional Compositescitations
- 2023Characterizing pure polymers under high speed compression for the micromechanical prediction of unidirectional compositescitations
- 2022An efficient iteration-free numerical scheme for finite element simulations employing pressure-dependent elastoplasticity using paraboloidal yield criterion
- 2022Efficient non-iterative modelling of pressure-dependent plasticity using paraboloidal yield criterioncitations
- 2022Thermo-mechanical modelling of UD composites to investigate self-heating and thermal softening effect of polymer matrix
- 2022Hydraulic-based testing and material modelling to investigate uniaxial compression of thermoset and thermoplastic polymers in quasistatic-to-dynamic regimecitations
- 2022Numerical study on the effect of matrix self-heating on the thermo-visco-plastic response of continuous fiber-reinforced polymers under transverse tensile loadingcitations
- 2021Non-iterative numerical implementation for the constitutive modelling of pressure-dependent elastoplasticity using paraboloidal yield criteria
- 2021Thermomechanical FEM-based modelling for semi-crystalline polymers exhibiting the double yield phenomenon
- 2020Sequential damage study induced in fiber reinforced composites by shear and tensile stress using a newly developed Arcan fixturecitations
- 2019Finite element modeling of indentation and adhesive wear in sliding of carbon fiber reinforced thermoplastic polymer against metallic counterpartcitations
Places of action
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article
Hydraulic-based testing and material modelling to investigate uniaxial compression of thermoset and thermoplastic polymers in quasistatic-to-dynamic regime
Abstract
The strain rate dependency of thermoplastics and thermosets in the range 10^-3 to 10^2 /s is still unclear due to experimental difficulties. This interval cannot be fully treated using a quasistatic-based electromechanical machine nor a high-speed test relying on the Kolsky bar method. This paper presents a uniaxial compression test set-up to cover the aforementioned range providing robust stress–strain measurements up to 100/s. This set-up is assessed at room temperature with a semi-crystalline polymer (SCP) polyether-ether-ketone (PEEK) KT880-NT and a toughened thermoset epoxy PR520. High speed 3D stereo digital image correlation (DIC) and an infra-red camera are used for data acquisition. The macroscopical true stress–strain curves demonstrate the importance of the thermal softening effect taking place in this range, accompanied with a temperature rise. In terms of characterization, an advanced unified SCP (USCP) model is employed to quantify the rate- and temperature-dependency for both polymers. A straightforward FEM-based parameter identification procedure is proposed requiring only two compressive stress–strain curves. The USCP model is further applied to PEEK 450G from literature to highlight the features of SCPs. The comparison of PEEK and PR520 is discussed pointing out the characterization challenges due to the transitional quasistatic-to-dynamic testing regime.