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

Tomáš Fíla, Jan Šleichrt, Daniel Kytýř, Ivana Kumpová, Petr Zlámal, Václav Rada, Daniel Vavřík, Petr Koudelka, Katerina Kulawiecova, Sascha Senck

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article numberC11021
Pages (from-to)1-8
JournalJournal of Instrumentation
Volume13
Issue number11
DOIs
Publication statusPublished - 28 Nov 2018

Keywords

  • Computerized Tomography (CT) and Computed Radiography (CR)
  • Detection of defects
  • Inspection with x-rays

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