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Spatially resolved measurements of grain size effects on the shock and spall response of quasi-Taylor wave loaded pure copper.
- Source :
- Journal of Applied Physics; 2017, Vol. 122 Issue 2, p1-12, 12p
- Publication Year :
- 2017
-
Abstract
- Quasi-Taylor wave loaded plate impact experiments have been used to study the effects of bulk grain size on the shock and spall response of pure copper samples. Using line-Velocity Interferometry System for Any Reflector velocimetry, an increased particle velocity dispersion was measured for larger bulk grain size samples resulting in lower mean peak particle velocities and a lower reload velocity following spall. Spall voids were located in a surface layer of similarly sized grains for both bulk grain size materials tested. The spall strength was observed to vary with the tensile strain-rate but was unaffected by the bulk grain size. Post-mortem studies of voids in samples showed narrow void planes for the small bulk grain size materials and a larger spread of voids in the larger bulk grain size materials consistent with the free surface particle velocity data and observed particle velocity dispersion. [ABSTRACT FROM AUTHOR]
- Subjects :
- COPPER compounds
GRAIN size
VELOCITY
TENSILE strength
STRAIN rate
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 122
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 124295482
- Full Text :
- https://doi.org/10.1063/1.4986626