Plate impact experiments on DC745U cooled to ~ -60 °C

Technical Report · Thu Aug 11 00:00:00 EDT 2016

DOI:https://doi.org/10.2172/1304808· OSTI ID:1304808

Gustavsen, Richard L. ^[1]; Dattelbaum, Dana M. ^[1]; Bartram, Brian Douglas ^[1]; Gibson, Lloyd Lee ^[1]; Jones, Justin Daniel ^[1]; Goodbody, Austin Bernard ^[1]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Shock and Detonation Physics

Using gas-gun driven plate impact experiments, we have measured the U_S - u_p Hugoniot of the silicone elastomer DC745U cooled to -60 °C. In summary, the initial density changes from p₀ (23°C) = 1.312 ± 0.010 g/cm³ to p₀ (-60°C) = 1.447 ± 0.011 g/cm³. The linear U_S - u_p Hugoniot changes from U_S = 1.62 + 1.74u_p km/s at +23°C, to U_S = 2.03 ± 0.06 + (2.03 ± 0.06) u_p km/s at -60°C. DC745U, therefore is much stiffer at -60°C than at +23°C, probably due to the crystallization that occurs at ~ -50°C. Caveats/deficiencies: 1) This report does not provide an adequate pedigree of the DC745U used. 2) References to unpublished room temperature shock compression data on the elastomer are inadequate. 3) The report has not been fact checked by a DC745 subject matter expert.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 1304808
• Report Number(s): LA-UR-16-26360
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
plate impact
Hugoniot
magnetic gauging
silicone elastomers