A comparison of phase change phenomena in CTH with experimental data

Technical Report · Fri Dec 31 00:00:00 EST 1993

DOI:https://doi.org/10.2172/10189756· OSTI ID:10189756

Hertel, Jr, E S; McIntosh, R L ^[1]; Patterson, B C ^[2]

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1. Sandia National Labs., Albuquerque, NM (United States)
2. Wright Lab., Eglin AFB, FL (United States). Armament Directorate

An estimate of the current state of the predictive capabilities of hydrocodes for impacts where phase changes may be important was made by simulating a series of experiments where zinc spheres impact thin zinc plates at 4 velocities. The experimental data was taken from Mullin, et al. and consisted of radiographs of the debris cloud and estimates of the momentum in the debris cloud along the velocity vector. The velocities ranged from 3.30 to 6.79 km/s indicating that the debris consists of solid/molten fragments to predominantly vapor phase material as the velocity increases. The simulations reveal that the CTH hydro can accurately predict the debris structure and momentum transfer for this class of impacts.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: Department of Defense, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 10189756
• Report Number(s): SAND-93-4074C; CONF-9410131-8; ON: DE95001608; BR: GB0103012; TRN: AHC29426%%90
• Resource Relation: Conference: 1994 hypervelocity impact symposium,Santa Fe, NM (United States),16-20 Oct 1994; Other Information: PBD: [1993]
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
IMPACT SHOCK
C CODES
PROJECTILES
IMPACT TESTS
PHASE TRANSFORMATIONS
EVAPORATION
COMPUTERIZED SIMULATION
COMPARATIVE EVALUATIONS
TARGETS
VELOCITY
FRAGMENTATION
EXPERIMENTAL DATA
THEORETICAL DATA
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MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE