| 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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Boisse, Julien
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2023Deformation mechanisms in PBT at elevated temperaturescitations
- 2023Deep Learning Approaches for Dynamic Mechanical Analysis of Viscoelastic Fiber Composites
- 2022Deformation in Semi-Crystalline Polymers from a Heterogeneous Spherulitic Microstructure
- 2021An FFT solver used for virtual Dynamic Mechanical Analysis experiments: Application to a glassy/amorphous system and to a particulate compositecitations
- 2020An FFT-solver used for virtual Dynamic Mechanical Analysis experiments: Application on a glassy/amorphous system and on a particulate composite
- 2019Morphological instability of iron-rich precipitates in Cu Fe Co alloyscitations
- 2018Viscoelastic behaviour of heterogeneous materials: extension of CraFT software to harmonic regime
- 2017Mesoscopic strain field analysis in a woven composite using a spectral solver and 3D-DIC measurementscitations
- 2017In-situ continuous 1D/2D synchrotron SAXS scans to study the kinematics of plastic instability in SCP
- 2017Anisotropy development during HDPE necking studied at the microscale with in situ continuous 1D SAXS scanscitations
- 2016A Mechanical Study of a Glass Fabric-Thermoplastic Resin Composite: 3D-DIC and X-ray tomographic observations explained by numerical simulations based on a spectral solver
- 2011Atomic-scale modeling of nanostructure formation in Fe–Ga alloys with giant magnetostriction: Cascade ordering and decompositioncitations
- 2008Coarsening Kinetic of Aluminium-Scandium and Aluminium-Zirconium-Scandium Precipitates
Places of action
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article
Anisotropy development during HDPE necking studied at the microscale with in situ continuous 1D SAXS scans
Abstract
Quantitative information about microstructural reorganizations which occur during mechanical solicitation is important to increase our knowledge on the rheology of semi-crystalline polymers. This point is investigated here on High Density Polyethylene through the measurement of an anisotropy index calculated from small-angle X-ray scattering (SAXS) patterns. These were obtained in situ on a coherent synchrotron beamline with a very fast scanning of the specimen under tensile test. This allows the anisotropy development of many material points which undergo different deformation paths to be followed, thanks to necking development and propagation. With this field information, the microstructural anisotropy observable is shown to have a given value at a given true strain, meaning that strain pilots the bulk topology. Results apparently departing from that premise are shown indeed to be an experimental artifact: true strains are measured on the specimen surface, necking introduces strain heterogeneities in thickness, and the SAXS technique probes the full volume producing averaging.