Design and use of uni-axial compression device for time lapse X-ray microtomography

0430896 - ÚTAM 2015 DE eng C - Conference Paper (international conference)
Fíla, Tomáš - Zlámal, Petr - Kytýř, Daniel - Koudelka_ml., Petr - Doktor, Tomáš - Jiroušek, Ondřej - Vavřík, Daniel
Design and use of uni-axial compression device for time lapse X-ray microtomography.
Experimental methods and numerical simulation in engineering science. Proceedings of the XIVth bilateral Czech/German symposium. Wuppertal: Institute for statics and dynamics of structures. University of Wuppertal, 2014 - (Harte, R.), s. 70-73. ISBN N.
[Experimental methods and numerical simulation in engineering science. Bilateral Czech/German symposium. /14./. Wuppertal (DE), 04.06.2014-07.06.2014]
R&D Projects: GA ČR(CZ) GAP105/12/0824
Institutional support: RVO:68378297
Keywords : X-ray * time-lapse microtomography * compression device * strain measurements
Subject RIV: JI - Composite Materials

This paper is focused on description and application of uni-axial compression device designed for performing time lapse X-ray micro tomography measurements. Technical specifications of the device, its modifications, limitations, application possibilities and recently performed experiments are in detail summarized in the text. The device was developed in two prototypes -first with monolithic polymeric frame and second with divided frame made of carbon-fibre composite and alluminium connected by bayonet lock. Such solution has improved loading capabilities, stiffness, spatial capacity and transparency for X-rays. The device is used for incremental loading when tomography measurement is performed in each deformation step. Results of micro tomography reconstructions are used for development of 3D microstructural model and for analysis and evaluation of material deformation behaviour e. g. by digital volumetric correlation method. Experiments including measurements of cellular materials such as bones and metal foams and particle composites such as concrete or cementitious composites were successfully performed and their results are summarized in the paper.
Permanent Link: http://hdl.handle.net/11104/0235607