Analysis of impact melt and vapor production in CTH for planetary applications
Journal Article
·
· Procedia Engineering
- Brown Univ., Providence, RI (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
This study explores impact melt and vapor generation for a variety of impact speeds and materials using the shock physics code CTH. The study first compares the results of two common methods of impact melt and vapor generation to demonstrate that both the peak pressure method and final temperature method are appropriate for high-speed impact models (speeds greater than 10 km/s). However, for low-speed impact models (speeds less than 10 km/s), only the final temperature method is consistent with laboratory analyses to yield melting and vaporization. Finally, a constitutive model for material strength is important for low-speed impacts because strength can cause an increase in melting and vaporization.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1214690
- Journal Information:
- Procedia Engineering, Vol. 103, Issue C; ISSN 1877-7058
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 19 works
Citation information provided by
Web of Science
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OSTI ID:1214690