Raster · dataset · 2026
In-situ 3D tomographic images of a wedge splitting test on a concrete specimen
Listed in ETH Zürich Research Collection
The coupling of in-situ X-ray computed tomography (CT) with Digital Volume Correlation (DVC) is an appealing experimental procedure to study the effect of the mesostructure of heterogeneous materials on their fracture behavior [1-2].
Description
In particular, it provides an unprecedented amount of data that can be used to formulate new models and/or to calibrate and validate existing ones under realistic three-dimensional loading conditions.
This dataset contains a set of 3D images coming from the in-situ CT testing of specimens made of concrete [4]. To this end, we adopt as paradigmatic example the wedge splitting tests [5] performed with a custom-designed setup that permits to observe with a CT scanner the whole specimen, including the boundary surfaces where the loads or displacements are applied. Different tomographic images are taken both before and during the test at different load levels to enable DVC analysis allowing to track the changes in the specimen due to the applied loads and the resulting crack nucleation and propagation.
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The segmentation of the images is facilitated by the addition in the mixture of baryte sulphate as contrast enhancer [2]. The complete dataset obtained is used in [4] to propose a method to (i) obtain and analyze with DVC the data coming from in-situ CT testing of specimens made of a realistic concrete mix, (ii) calibrate a phase-field model based on experimental tests and (iii) validate the model by comparing 3D experimental and numerical results.
References 1. S. Roux, F. Hild, P. Viot, D. Bernard, Three-dimensional image correlation from X-ray computed tomography of solid foam, Comp A: App Sci Man 39 (2008) 1253–1265. 2. P. Carrara, R. Kruse, D. P. Bentz, M. Lunardelli, T. Leusmann, P. A. Varady, L. De Lorenzis, Improved mesoscale segmentation of concrete from 3D X-ray images using contrast enhancers, Cem Concr Comp 93 (2018) 30–42. 3.
B. Bourdin, G. A.Francfort, J-J.Marigo, Numerical experiments in revisited brittle fracture, J Mech Phys Solid 48 (2000) 797-826. 4. A. Mishra, P. Carrara, M. Griffa, L. De Lorenzis, Fracture in concrete: in-situ X-ray tomography tests, digital volume correlation and phase field modeling, (2023) In preparation. 5. E. Brühwiler, F. H. Wittmann, The wedge splitting test, a new method of performing stable fracture mechanics tests, Eng Fract Mech 35 (1990) 117-125.
Links
Where it is published
- ETH Zürich Research Collection record hdl.handle.net/20.500.11850/633761 ↗
landing page · from research collection ethz ch
- DOI doi.org/10.3929/ethz-b-000633761 ↗
DOI / persistent id · from research collection ethz ch
Catalogue records · 1
- OAI-PMH record research-collection.ethz.ch/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Awww.… ↗
metadata API · from research collection ethz ch
Topics
- From keywords
- Chemistry · Computer Science & AI · Earth & Environmental Science · Economics & Finance · Engineering · Humanities · Life Sciences · Materials Science · Mathematics & Statistics · Medicine & Health · Physics · Psychology & Behavioral Science · Social Science
- Inferred from text
- Biomedical engineering 69% · Computed tomography 75% · Image 75%
Provenance · 1 source records, 21 field assertions
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|---|---|---|---|
| ETH Zürich Research Collection | oai:www.research-collection.ethz.ch:20.500.11850/633761 | 11 d ago | JSON v1 |
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