Uniaxial Compression of Cellular Materials at a 10^-1 s^-1 Strain Rate Simultaneously with Synchrotron X-ray Computed Tomographic Imaging

Technical Report · Tue Mar 01 04:00:00 EST 2016

DOI:https://doi.org/10.2172/1240801· OSTI ID:1240801

Patterson, Brian M. ^[1]

---

1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The topic is presented as a series of slides. Motivation for the work included the following: X-ray tomography is a fantastic technique for characterizing a material’s starting structure as well as for non-destructive, in situ experiments to investigate material response; 3D X-ray tomography is needed to fully characterize the morphology of cellular materials; and synchrotron micro-CT can capture 3D images without pausing experiment. Among the conclusions reached are these: High-rate radiographic and tomographic imaging (0.25 s 3D frame rate) using synchrotron CT can capture full 3D images of hyper-elastic materials at a 10^-2 strain rate; dynamic true in situ uniaxial loading can be accurately captured; the three stages of compression can be imaged: bending, buckling, and breaking; implementation of linear modeling is completed; meshes have been imported into LANL modeling codes--testing and validation is underway and direct comparison and validation between in situ data and modeled mechanical response is possible.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 1240801
• Report Number(s): LA-UR--16-21303
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BENDING
COMPRESSION
COMPUTERIZED SIMULATION
COMPUTERIZED TOMOGRAPHY
DYNAMIC LOADS
FAILURES
IMAGES
POROUS MATERIALS
STRAIN RATE
SYNCHROTRON RADIATION
VALIDATION
X-RAY RADIOGRAPHY