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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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Ren, W.
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Topics
Publications (9/9 displayed)
- 2020Oxygen octahedral tilt ordering in (Na1/2Bi1/2)TiO3 ferroelectric thin filmscitations
- 2018Graphitization of amorphous carbon by swift heavy ion impactscitations
- 2018Graphitization of amorphous carbon by swift heavy ion impacts : Molecular dynamics simulationcitations
- 2017In-situ X-ray computed tomography characterisation of 3D fracture evolution and image-based numerical homogenisation of concretecitations
- 2016In-situ X-ray computed tomography characterisation of 3D fracture evolution and image-based numerical homogenisation of concretecitations
- 2015Modification of Pt/Co/Pt film properties by ion irradiationcitations
- 2014Control of ferroelectricity and magnetism in multi-ferroic BiFeO3 by epitaxial straincitations
- 2014Control of ferroelectricity and magnetism in multi-ferroic BiFeO3 by epitaxial straincitations
- 2013Full field electron spectromicroscopy applied to ferroelectric materialscitations
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article
In-situ X-ray computed tomography characterisation of 3D fracture evolution and image-based numerical homogenisation of concrete
Abstract
In-situ micro X-ray Computed Tomography (XCT) tests of concrete cubes under progressive compressive loading were carried out to study 3D fracture evolution. Both direct segmentation of the tomography and digital volume correlation (DVC) mapping of the displacement field were used to characterise the fracture evolution. Realistic XCT-image based finite element (FE) models under periodic boundaries were built for asymptotic homogenisation of elastic properties of the concrete cube with Young's moduli of cement and aggregates measured by micro-indentation tests. It is found that the elastic moduli obtained from the DVC analysis and the FE homogenisation are comparable and both within the Reuss-Voigt theoretical bounds, and these advanced techniques (in-situ XCT, DVC, micro-indentation and image-based simulations) offer highly-accurate, complementary functionalities for both qualitative understanding of complex 3D damage and fracture evolution and quantitative evaluation of key material properties of concrete.