APS Beamline 2-BM micro-tomography system

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APS Beamline 2-BM micro-tomography system Mechanical behavior of sand under compression through direct observation of 3D Microstructure, Jay Hanan Oklahoma State University 76 tomography datasets in total for the 34% maximum strain reached. 1mm 4 tomographs are combined per strain step to examine the full column. 2D slice of the sand grains 2.6 µm/pixel resolution
APS Beamline 2-BM micro-tomography system Mechanical behavior of sand under compression through direct observation of 3D Microstructure, Jay Hanan Oklahoma State University Tomographs and simulations global strains are equal. N. P. Daphalapurkar, J. C. Hanan, et al., “Tomography and Simulation of Microstructure Evolution of a Closed‐Cell Polymer Foam in Compression.” Mechanics of Advanced Materials and Structures, 15:1–18, 2008. 35 30 25 20 15 10 5 1. 6. 3. 5. 4. 2. 7. Zero Densification Cells First Initial Densification collapse stress start flatten buckling to change shape 0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Strain ( mm / mm ) 35 30 25 20 15 10 5 0 Stress (MPa)
Page 1 and 2: X-ray beam Robot Tweezer APS 2-BM A
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