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Title: Real-time visualization of dynamic particle contact failures

Journal Article · · AIP Conference Proceedings
DOI:https://doi.org/10.1063/1.4971688· OSTI ID:1395874
 [1];  [1];  [1];  [1];  [2];  [2];  [1]
  1. Purdue Univ., West Lafayette, IN (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
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Granular materials are widely used to resist impact and blast. Under these dynamic loadings, the constituent particles in the granular system fracture. To study the fracture mechanisms in brittle particles under dynamic compressive loading, a high speed X-ray phase contrast imaging setup was synchronized with a Kolsky bar apparatus. Controlled compressive loading was applied on two contacting particles using the Kolsky bar apparatus and fracture process was captured using the high speed X-ray imaging setup. Five different particles were investigated: soda-lime glass, polycrystalline silica (silicon dioxide), polycrystalline silicon, barium titanate glass, and yttrium stabilized zirconia. For both soda lime glass and polycrystalline silica particles, one of the particles fragmented explosively, thus breaking into many small pieces. For Silicon and barium titanate glass particles, a finite number of cracks were observed in one of the particles causing it to fracture. For yttrium stabilized zirconia particles, a single meridonial crack developed in one of the particles, breaking it into two parts.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC); US Department of the Navy, Office of Naval Research (ONR)
Grant/Contract Number:
AC02-06CH11357; N00014-14-1-0628
OSTI ID:
1395874
Journal Information:
AIP Conference Proceedings, Vol. 1793; Conference: 19.Biennial Conference on Shock Compression of Condensed Matter (SCCM-2015), Tampa Bay, FL (United States), 14-19 Jun 2015; ISSN 0094-243X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
Continuum mechanics
Granular materials
X-ray phase contrast imaging
Glass
X-ray imaging
Semiconductor materials
Polycrystalline material