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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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Chen, Yang
University of Bath
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Phase-separated polymer blends for controlled drug delivery by tuning morphologycitations
- 2023Full-field prediction of stress and fracture patterns in composites using deep learning and self-attentioncitations
- 2022Carbon fibre lattice strain mapping via microfocus Synchrotron X-ray diffraction of a reinforced compositecitations
- 2021FFT phase-field model combined with cohesive composite voxels for fracture of composite materials with interfacescitations
- 20203D detection and quantitative characterization of cracks in a ceramic matrix composite tube using X-ray computed tomographycitations
- 2019Analysis of the damage initiation in a SiC/SiC composite tube from a direct comparison between large-scale numerical simulation and synchrotron X-ray micro-computed tomographycitations
- 2019A FFT solver for variational phase-field modeling of brittle fracturecitations
- 2017Effects of braiding angle on damage mechanisms in SiC/SiC composite tubes characterized by X-ray computed tomography
- 2016Massively parallel FFT-based simulation to analyze the behavior of architected SiC/SiC composite tubes from synchrotron X-ray tomography
- 2016Dense, Regular GaAs Nanowire Arrays by Catalyst-Free Vapor Phase Epitaxy for Light Harvestingcitations
- 2015On the role of in-plane damage mechanisms on the macroscopic behavior of SiC/SiC composites from complementary 2D and 3D in-situ investigations
- 2009Efficient mold manufacturing for precision glass moldingcitations
Places of action
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article
Carbon fibre lattice strain mapping via microfocus Synchrotron X-ray diffraction of a reinforced composite
Abstract
Synchrotron X-ray diffraction (SXRD) strain analysis is well established for high crystalline materials such as metals and ceramics, however, previously it has not been used in Carbon Fibre Reinforced Polymer (CFRP) composites due to their complex turbostratic atomic structure. This paper will present the feasibility of using SXRD for fibre orientation and lattice strain mapping inside CFRPs. In particular, it is the first time that the radial {002} and axial {100} strains of carbon fibre crystal planes have been analysed and cross-validated via numerical multi-scale simulation in a two-scale manner. In order to simplify the analysis and provide comparable estimates, an UniDirectional (UD) CFRP formed into a well-established humpback bridge shape was used. The lattice strain estimates obtained from SXRD showed localised stress concentrations and effectively matched the numerical results obtained by modelling. The mean absolute percentage differences between the two were 25.8% and 28.5% in the radial and axial directions, respectively. Differences between the two measurements are believed to originate from the non-uniform thermal history, forming geometry and tool-part interaction which leads to localised residual strains in the laminate which are unable to be fully captured by the numerical simulation performed. The carbon fibre microstructures of the inner plies adjacent to the tool were found to be significantly influenced by these factors and therefore the largest errors were observed at these locations. The approach presented has significant promise and implications for research into the micromechanics of composite materials and areas for future improvement have been outlined.