Investigation on Fragmentation of Pyrophoric Alloy Samples during Taylor Test Using SPH
Keyword(s):
This study is the first part of a project that aims to assess and model impact-induced energy release (IIER). The present part of the work investigates the failure mode of brittle commercial pyrophoric alloy samples during Taylor impact tests. A series of ferrocerium specimens were shot against tungsten carbide anvils, with velocities ranging between 60 and 140 m/s. A Total Lagrangian SPH model was employed to simulate the deformation and impact-induced fragmentation of the cylinders using LSDYNA®. The modified Johnson-Cook constitutive model was applied in combination with the Cockcroft-Latham fracture criterion. The plastic deformation process, shear cracking, and fragmentation are well reproduced in the numerical results.
2018 ◽
Vol 136
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pp. 229-239
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2007 ◽
Vol 26-28
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pp. 133-136
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2020 ◽
Vol 837
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pp. 155576
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2011 ◽
Vol 21
(2)
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pp. 243-249
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