Modeling and Analysis of AGS (1998) Thermal Shock Experiments

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An overview is provided on modeling and analysis of thermal shock experiments conducted during 1998 with high-energy, short-pulse energy deposition in a mercury filled container in the Alternating Gradient Synchrotron (AGS) facility at Brookhaven National Laboratory (BNL). The simulation framework utilized along with the results of simulations for pressure and strain profiles are presented. While the magnitude of penk strain predictions versus data are in reasonable agreement, the temporal variations were found to differ significantly in selected cases, indicating lack of modeling of certain physical phenomena or due to uncertainties in the experimental data gathering techniques. Key thermal-shock related issues ... continued below

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Haines, J.R.; Kim, S.H. & Taleyarkhan, R.P. November 14, 1999.

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An overview is provided on modeling and analysis of thermal shock experiments conducted during 1998 with high-energy, short-pulse energy deposition in a mercury filled container in the Alternating Gradient Synchrotron (AGS) facility at Brookhaven National Laboratory (BNL). The simulation framework utilized along with the results of simulations for pressure and strain profiles are presented. While the magnitude of penk strain predictions versus data are in reasonable agreement, the temporal variations were found to differ significantly in selected cases, indicating lack of modeling of certain physical phenomena or due to uncertainties in the experimental data gathering techniques. Key thermal-shock related issues and uncertainties are highlighted. Specific experiments conducted at BNL's AGS facility during 1998 (the subject of this paper) involved high-energy (24 GeV) proton energy deposition in the mercury target over a time frame of - 0.1s. The target consisted of an - 1 m. long cylindrical stainless steel shell with a hemispherical dome at the leading edge. It was filled with mercury at room temperature and pressure. Several optical strain gages were attached to the surface of the steel target. Figure 1 shows a schematic representation of the test vessel along with the main dimensions and positions of three optical strain gages at which meaningful data were obtained. As

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INIS; OSTI as DE00015054

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  • AccApp '99, Long Beach, CA (US), 11/14/1999

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  • Report No.: ORNL/CP-105501
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 15054
  • Archival Resource Key: ark:/67531/metadc622472

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  • November 14, 1999

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  • June 16, 2015, 7:43 a.m.

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  • Jan. 22, 2016, 12:13 p.m.

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Haines, J.R.; Kim, S.H. & Taleyarkhan, R.P. Modeling and Analysis of AGS (1998) Thermal Shock Experiments, article, November 14, 1999; Tennessee. (digital.library.unt.edu/ark:/67531/metadc622472/: accessed August 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.