Analysis of impact melt and vapor production in CTH for planetary applications

Quintana, S. N.; Crawford, D. A.; Schultz, P. H.

doi:10.1016/j.proeng.2015.04.065

Analysis of impact melt and vapor production in CTH for planetary applications

Journal Article · Tue May 19 00:00:00 EDT 2015 · Procedia Engineering

DOI:https://doi.org/10.1016/j.proeng.2015.04.065· OSTI ID:1214690

Quintana, S. N. ^[1]; Crawford, D. A. ^[2]; Schultz, P. H. ^[1]

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.

View Accepted Manuscript (DOE)

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, Journal Name: Procedia Engineering Journal Issue: C Vol. 103; ISSN 1877-7058

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Effects of Friction and Plastic Deformation in Shock‐Comminuted Damaged Rocks on Impact Heating Kurosawa, Kosuke; Genda, Hidenori Geophysical Research Letters, Vol. 45, Issue 2 https://doi.org/10.1002/2017gl076285	journal	January 2018
Slow Impacts on Strong Targets Bring on the Heat Melosh, H. J.; Ivanov, B. A. Geophysical Research Letters, Vol. 45, Issue 6 https://doi.org/10.1002/2018gl077726	journal	March 2018
Experimental research on discharge characteristics induced by hypervelocity impact on split targets with potential gradient Tang, Enling; Wang, Junru; Han, Yafei Acta Mechanica, Vol. 230, Issue 10 https://doi.org/10.1007/s00707-019-02483-y	journal	July 2019
Examining the Potential Contribution of the Hokusai Impact to Water Ice on Mercury Ernst, Carolyn M.; Chabot, Nancy L.; Barnouin, Olivier S. Journal of Geophysical Research: Planets, Vol. 123, Issue 10 https://doi.org/10.1029/2018je005552	journal	October 2018

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References (19)

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