An existing open and modular designed micro X-Ray Computed Tomography (μXRCT) system is extended by a test rig in order to combine mechanical and hydro-mechanical experiments with μXRCT characterization. The aim of the system is to cover the complete resolution range of the underlying μXRCT system in combination with a broad load capacity range. A characteristic feature of the developed setup is that it consists mainly of standard components. This makes the shown test rig potentially interesting for other researchers considering extending an existing μXRCT system with an apparatus for mechanical and hydro-mechanical in situ testing. For the load frame, an uniaxial 10 kN universal testing machine with a digital control system was employed, which was extended by two aligned rotational stages. The uniaxial load capacity is ±3.1 kN and can be combined with torque moments of up to ±15 N m both limited by the used rotational stages. The setup is designed in such a way that different x-ray transparent cells (flow cells, oedometer cells, triaxial cells, etc.) can be integrated to generate three-dimensional stress/strain states as required for porous media research. Three applications demonstrate the possible versatile use of the system. As part of these examples, we show how corresponding x-ray transparent cells are designed and implemented. Finally, we discuss the presented approach’s technical advantages and disadvantages and suggest improvements.
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August 2023
Research Article|
August 25 2023
A multifunctional mechanical testing stage for micro x-ray computed tomography
Matthias Ruf
;
Matthias Ruf
a)
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Software, Visualization, Writing – original draft, Writing – review & editing)
1
University of Stuttgart, Institute of Applied Mechanics (CE)
, Pfaffenwaldring 7, D-70569 Stuttgart, Germany
a)Authors to whom correspondence should be addressed: [email protected]
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Dongwon Lee
;
Dongwon Lee
(Investigation, Software, Writing – original draft, Writing – review & editing)
1
University of Stuttgart, Institute of Applied Mechanics (CE)
, Pfaffenwaldring 7, D-70569 Stuttgart, Germany
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Holger Steeb
Holger Steeb
a)
(Conceptualization, Data curation, Formal analysis, Funding acquisition, Methodology, Writing – original draft, Writing – review & editing)
1
University of Stuttgart, Institute of Applied Mechanics (CE)
, Pfaffenwaldring 7, D-70569 Stuttgart, Germany
2
University of Stuttgart, SC SimTech
, D-70569 Stuttgart, Germany
a)Authors to whom correspondence should be addressed: [email protected]
Search for other works by this author on:
a)Authors to whom correspondence should be addressed: [email protected]
Rev. Sci. Instrum. 94, 085115 (2023)
Article history
Received:
April 04 2023
Accepted:
August 07 2023
Citation
Matthias Ruf, Dongwon Lee, Holger Steeb; A multifunctional mechanical testing stage for micro x-ray computed tomography. Rev. Sci. Instrum. 1 August 2023; 94 (8): 085115. https://doi.org/10.1063/5.0153042
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