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10 September 2019 A load frame for in situ tomography at PETRA III
Julian Moosmann, D. C. Florian Wieland, Berit Zeller-Plumhoff, Silvia Galli, Diana Krüger, Alexey Ershov, Silke Lautner, Julian Sartori, Mason Dean, Sebastian Köhring, Hilmar Burmester, Thomas Dose, Niccoló Peruzzi, Ann Wennerberg, Regine Willumeit-Römer, Fabian Wilde, Philipp Heuser, Jörg U. Hammel, Felix Beckmann
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Proceedings Volume 11113, Developments in X-Ray Tomography XII; 1111318 (2019) https://doi.org/10.1117/12.2530445
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States
Abstract
A load frame for in situ mechanical testing is developed for the microtomography end stations at the imaging beamline P05 and the high-energy material science beamline P07 of PETRA III at DESY, both operated by the Helmholtz- Zentrum Geesthacht. The load frame is fully integrated into the beamline control system and can be controlled via a feedback loop. All relevant parameters (load, displacement, temperature, etc.) are continuously logged. It can be operated in compression or tensile mode applying forces of up to 1 kN and is compatible with all contrast modalities available at IBL and HEMS i.e. conventional attenuation contrast, propagation based phase contrast and differential phase contrast using a grating interferometer. The modularity and flexibility of the load frame allows conducting a wide range of experiments. E.g. compression tests to understand the failure mechanisms in biodegradable implants in rat bone or to investigate the mechanics and kinematics of the tessellated cartilage skeleton of sharks and rays, or tensile tests to illuminate the structure-property relationship in poplar tension wood or to visualize the 3D deformation of the tendonbone insertion. We present recent results from the experiments described including machine-learning driven volume segmentation and digital volume correlation of load tomography sequences.
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Julian Moosmann, D. C. Florian Wieland, Berit Zeller-Plumhoff, Silvia Galli, Diana Krüger, Alexey Ershov, Silke Lautner, Julian Sartori, Mason Dean, Sebastian Köhring, Hilmar Burmester, Thomas Dose, Niccoló Peruzzi, Ann Wennerberg, Regine Willumeit-Römer, Fabian Wilde, Philipp Heuser, Jörg U. Hammel, and Felix Beckmann "A load frame for in situ tomography at PETRA III", Proc. SPIE 11113, Developments in X-Ray Tomography XII, 1111318 (10 September 2019); https://doi.org/10.1117/12.2530445
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KEYWORDS
Tomography
Phase contrast
Bone
Control systems
Feedback loops
Interferometers
Kinematics
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