Deformation analysis of the spongious sample in simulated physiological conditions based on in-situ compression, 4D computed tomography and fast readout detector

In this work, an in-house designed table top loading device equipped with a bioreactor is used for the in-situ compression of a spongious sample in simulated physiological conditions. On-the-fly 4D computed tomography is used as a tool for the advanced volumetric analysis of the deforming microstruc...

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Bibliographic Details
Published in:Journal of instrumentation 2018-11, Vol.13 (11), p.C11021-C11021, Article C11021
Main Authors: Fíla, T., Šleichrt, J., Kytýř, D., Kumpová, I., Vopálenský, M., Zlámal, P., Rada, V., Vavřík, D., Koudelka, P., Senck, S.
Format: Article
Language:English
Subjects:
Algorithms
Bioreactors
Computed tomography
Computer simulation
Deformation analysis
Digital imaging
Flat panels
Image acquisition
Metal oxides
Modular equipment
Physiology
Sensors
Slip rings
Tomography
Volumetric analysis
Volumetric strain
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Summary:In this work, an in-house designed table top loading device equipped with a bioreactor is used for the in-situ compression of a spongious sample in simulated physiological conditions. On-the-fly 4D computed tomography is used as a tool for the advanced volumetric analysis of the deforming microstructure of the specimen. The loading device with the bioreactor was placed directly onto the rotational stage of a modular X-ray scanner. As the loading device is equipped with a slip-ring cable system, it can perform an unlimited number of revolutions during the on-the-fly scanning procedure. A complementary metal-oxide-semiconductor flat panel detector with a fast readout was used for the acquisition of the X-ray images. The specimen was compressed with a low loading velocity. A set of the volumetric data capturing the deformation of the specimen during the experiment was prepared from the images acquired by the detector. A digital volume correlation algorithm was used for the evaluation of the volumetric strain fields in the specimen.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/13/11/C11021