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- 1Comminution
- 1Drop-tests
- 1Dynamic brittle fragmentation
- 1Dynamic fragmentation of rock
- 1Elastic heat dissipation in fracture
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2012
Hogan, James, Spray, John, Rogers, Robert, Boonsue, Suporn
The dynamic fragmentation of granite at impact energies of 6–28 J is examined in this paper. Results indicate that more dense materials, or those with a higher quartz content, produce less fractured mass, and have larger dominant fragment sizes and smaller aspect ratios in their fragment...
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2012
Boonsue, Suporn, Rogers, Robert, Spray, John, Hogan, James
The role of plastic deformation and fracture during small-scale, low-rate contact scenarios in gypsum is investigated. Results indicate that the hardness decreases with increasing load, on all axes, ranging from 216 kg/mm2 at 0.25 N to 91 kg/mm2 at 4.91 N on the (010) plane and from 122 kg/mm2 at...
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Micro-Scale Energy Dissipation Mechanisms During Fracture in Natural Polyphase Ceramic Blocks
Download2011
Vincent, Gregory, Boonsue, Suporn, Rogers, Robert, Spray, John, Schneider, Markus, Hogan, James
The dynamic fracture of natural polyphase ceramic (granite) blocks by high-speed impact at 207 m/s, 420 m/s and 537 m/s has been investigated. An electromagnetic railgun was used as the launch system. Results reveal that the number of fragments increases substantially, and the dominant length...