Počet záznamů: 1
High-resolution time-lapse tomography of rat vertebrae during compressive loading: deformation response analysis
- 1.
SYSNO ASEP 0429467 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název High-resolution time-lapse tomography of rat vertebrae during compressive loading: deformation response analysis Tvůrce(i) Fíla, Tomáš (UTAM-F) RID, SAI, ORCID
Kytýř, Daniel (UTAM-F) SAI, RID, ORCID
Zlámal, Petr (UTAM-F) RID, SAI, ORCID
Kumpová, Ivana (UTAM-F) RID, SAI, ORCID
Doktor, Tomáš (UTAM-F) RID, SAI, ORCID
Koudelka_ml., Petr (UTAM-F) RID, SAI, ORCID
Jiroušek, Ondřej (UTAM-F) RID, SAICelkový počet autorů 7 Zdroj.dok. Journal of Instrumentation. - : Institute of Physics Publishing - ISSN 1748-0221
Roč. 9, May (2014), C05054Poč.str. 8 s. Forma vydání Online - E Akce International workshop on radiation imaging detectors /15./ Datum konání 23.06.2013-27.06.2013 Místo konání Paris Země FR - Francie Typ akce WRD Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova image reconstruction in medical imaging ; computerized tomography ; computed radiography Vědní obor RIV JJ - Ostatní materiály CEP GAP105/10/2305 GA ČR - Grantová agentura ČR LO1219 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UTAM-F - RVO:68378297 UT WOS 000340036100054 EID SCOPUS 84903625124 DOI 10.1088/1748-0221/9/05/C05054 Anotace This paper is focused on investigation of mechanical properties of rat vertebrae during compressive loading in the longitudinal direction of rat’s spine. High-resolution time-lapse micro-tomography was used as a tool to create models of the inner structure and deformed shape in pre-defined deformation steps. First, peripheral areas of vertebra specimen were embedded in polymethyl methacrylate to obtain proper boundary conditions of contact between specimen and loading plattens. Experimental loading device designed for application in X-ray setups was utilized to compress the vertebrae in several deformation steps. High-resolution micro-tomography scanning was carried out at each deformation step. Specimen was irradiated in tomography device equipped with microfocus X-ray tube with 5mm focal spot size and large area flat panel detector. Spatial resolution of reconstructed three-dimensional images was approximately 10mm. Digital volume correlation algorithm was utilized in order to assess displacements in the microstructure in every loading increment. Finite element model of vertebra was created from volumetric data reconstructed from tomography of the undeformed specimen. Simulated compressive test of the developed finite element model was performed in order to compare stiffness and displacements obtained by digital volume correlation and finite element simulation. Pracoviště Ústav teoretické a aplikované mechaniky Kontakt Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Rok sběru 2015 Elektronická adresa http://iopscience.iop.org/1748-0221/9/05/C05054
Počet záznamů: 1