(U) A Gruneisen Equation of State for TPX. Application in FLAG

Fredenburg, David A.¹  Aslam, Tariq Dennis¹  Bennett, Langdon Stanford¹ 

[1] Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

关键词: TPX;    Hugoniot;    EOS;    FLAG;    Gruneisen;   

DOI  :  10.2172/1225287
RP-ID  :  LA-UR--15-28533
PID  :  OSTI ID: 1225287

学科分类：材料科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

A Gruneisen equation of state (EOS) is developed for the polymer TPX (poly 4-methyl-1-pentene) within the LANL hydrocode FLAG. Experimental shock Hugoniot data for TPX is fit to a form of the Gruneisen EOS, and the necessary parameters for implementing the TPX EOS in FLAG are presented. The TPX EOS is further validated through one-dimensional simulations of recent double-shock experiments, and a comparison is made between the new Gruneisen EOS for TPX and the EOS representation for TPX used in the LANL Common Model.