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Journal Articles (Mechanical Engineering)
Items in this Collection
- 3Hogan, James
- 2Farbaniec, Lukasz
- 2Ramesh, K.T.
- 1Daphalapurkar, Nitin
- 1Rogers, Robert
- 1Schneider, Markus
- 3Brittle failure
- 1Advanced ceramics
- 1Boron carbide
- 1Compressive fragmentation
- 1Dynamic fragmentation
- 1Ejecta measurements
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Dynamic Fragmentation of Planetary Materials: Sub-Hypervelocity Ejecta Measurements and Velocity Scaling during Impact Testing
Download2013-01-01
Hogan, James, Vincent, Gregory, Spray, John, Rogers, Robert, Schneider, Markus
Ejecta velocity measurements were made during impacts into solid planetary materials. Ejecta velocity fields overlie each other when normalized by vmax, v50%mass, and v50%KE; these correspond to the maximum velocity and median values of mass and kinetic energy among ejecta velocities....
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Micromechanisms Associated with the Dynamic Compressive Failure of Hot-Pressed Boron Carbide
Download2015
Ramesh, K.T., Farbaniec, Lukasz, Hogan, James
Brittle failure in boron carbide has been studied in dynamic uniaxial compression using a Kolsky bar technique. A detailed study of fragments was performed using SEM-EDS, to identify the mechanisms responsible for failure. Microstructural characterization and fracture surface observations...
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2016
Farbaniec, Lukasz, Daphalapurkar, Nitin, Ramesh, K.T., Hogan, James
Dynamic brittle fragmentation is typically described using analytical and computational approaches for tensile stress-states. However, most fragmentation applications (e.g., impact, blast) involve very large initial compressive stresses and deformations. In this study, the compressive...