Verification of Numerical Model for Trabecular Tissue using Compression Test and Time-Lapse X-Ray Radiography based on Material Model Determined from Three-Point Bending Test of Single Trabecula
- NázevTitle
- Verification of Numerical Model for Trabecular Tissue using Compression Test and Time-Lapse X-Ray Radiography based on Material Model Determined from Three-Point Bending Test of Single TrabeculaVerification of Numerical Model for Trabecular Tissue using Compression Test and Time-Lapse X-Ray Radiography based on Material Model Determined from Three-Point Bending Test of Single Trabecula
- Druh výsledkuResult type
- Příspěvek ve sborníkuProceedings paper
- AutořiAuthors
- P. Zlámal, T. Doktor, O. Jiroušek, I. Jandejsek
- DOIDOI
- 10.4028/www.scientific.net/KEM.586.265
- Časopis / citaceJournal / citation
- In: 9th International Conference on Local Mechanical Properties. Zürich: Transtech Publications, 2014, pp. 265-269. Key Engineering Materials. ISSN 1013-9826. ISBN 978-3-03785-876-9.
- JazykLanguage
- eng
- WoSWoS
- 000336633500065
- ScopusScopus
- 2-s2.0-84885825910
- RIVRIV
- RIV/68407700:21260/14:00208101!RIV15-MSM-21260___
- ProjektProject
- Stanovení mechanických vlastností porézních materiálů použitím experimentálních a počítačových metod.Determination of mechanical properties of porous materials using experimental and computer methods.; Rozvoj metod návrhu a provozu dopravních sítí z hlediska jejich optimalizaceDevelopment of methods of design and operation of transport network from the point of view of their optimization; Využití radionuklidů a ionizujícího zářeníApplication of radionuclides and ionising radiation
AbstraktAbstract
The aim of this study is to determine constitutive constants for elasto-plastic material model with damage for single trabecula based on the indirect simulation of micromechanical testing and its verification at macro level using compression test of the cylindrical sample of the trabecular tissue. Three-point bending test of isolated trabeculae was performed in a shielding box and deflection of the sample was acquired using X-ray microradiography. Measured values (displacements of markers) were used for indirect identification of the material model for single trabecula using finite element (FE) method. The bending test was simulated and results were fitted to experimentally obtained values and the appropriate set of material constants was determined. To verify the applicability of the identified material model the compression test of the complex sample was carried out. Cylindrical sample was incrementally loaded and each loading state was captured using the micro-computed tomography. Material model identified from three-point bending test was applied to the model of complex sample and the simulation of the compression test was performed.
The aim of this study is to determine constitutive constants for elasto-plastic material model with damage for single trabecula based on the indirect simulation of micromechanical testing and its verification at macro level using compression test of the cylindrical sample of the trabecular tissue. Three-point bending test of isolated trabeculae was performed in a shielding box and deflection of the sample was acquired using X-ray microradiography. Measured values (displacements of markers) were used for indirect identification of the material model for single trabecula using finite element (FE) method. The bending test was simulated and results were fitted to experimentally obtained values and the appropriate set of material constants was determined. To verify the applicability of the identified material model the compression test of the complex sample was carried out. Cylindrical sample was incrementally loaded and each loading state was captured using the micro-computed tomography. Material model identified from three-point bending test was applied to the model of complex sample and the simulation of the compression test was performed.