X-ray tomographic method for measuring three-dimensional deformation and water content distribution in swelling clays
Harjupatana, T., Alaraudanjoki, J., & Kataja, M. (2015). X-ray tomographic method for measuring three-dimensional deformation and water content distribution in swelling clays. Applied Clay Science, 114(September), 386-394. https://doi.org/10.1016/j.clay.2015.06.016
Published inApplied Clay Science
© 2015 Elsevier B.V. This is a final draft version of an article whose final and definitive form has been published by Elsevier. Published in this repository with the kind permission of the publisher.
A non-invasive method for simultaneous measurement of the 3D displacement field and the water content distribution of a wetted solid material is developed. The method is based on comparison of X-ray tomographic images of a material sample in the reference state and in the wetted and deformed state. The deformation and water content analyses were successfully compared with numerical results for a cylindrical rubber test sample under axial compression, and with gravimetric results from axially wetted and sliced cylindrical bentonite samples, respectively. The methods were applied in a 4D study (three spatial dimensions and time) of wetting and deformation of purified swelling bentonite doped with glass tracer particles, and wetted with synthetic groundwater. The results obtained for bentonite samples are repeatable and appear qualitatively correct and plausible. They are useful e.g. in validating models involving transport of water and the resulting swelling deformation of bentonite. The method is potentially applicable also in other processes involving liquid transport and deformation such as wetting/swelling and drying/shrinking of heterogeneous materials. A prerequisite for the applicability of the method is that the material contains sufficient amount of local inhomogeneities visible and identifiable in successive tomographic images to facilitate deformation analysis, and that change in water content affects the total density enough to be observable in X-ray images. ...
Publication in research information system
MetadataShow full item record
Showing items with similar title or keywords.
Harjupatana, Tero; Alaraudanjoki, Jarno; Kataja, Markku (Rakenteiden mekaniikan seura, 2015)A non-invasive method for measuring the three-dimensional displacement field and liquid content distribution in a wetting and swelling material using X-ray tomographic imaging is introduced. The method is demonstrated ...
Harjupatana, Tero; Miettinen, Arttu; Kataja, Markku (Elsevier, 2022)A non-invasive method based on X-ray imaging for measuring deformation and water transport in wetting and swelling bentonite samples is introduced. Sequential X-ray images taken of the samples were used to calculate the ...
Miettinen, Arttu (University of Jyväskylä, 2016)Analysis methods for X-ray microtomographic images of short fibre composite materials were developed. The methods enable estimation of microstructural properties of the material, e.g., aspect ratio and orientation of ...
Three-dimensional analysis of tumour vascular corrosion casts using stereoimaging and micro-computed tomography Folarin, Amos; Konerding, Moritz; Timonen, Jussi; Nagl, Sylvia; Pedley, Barbara (2010)Objective In order to perform effective translational research for cancer therapy, we need to employ pre-clinical models which reflect the clinical situation. The purpose of this study was to quantitatively compare the ...
Eloranta, Aaro (2012)