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/EOS/TILLOTSON - Tillotson Equation of State
Description
Describes the Tillotson equation of state.
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#RADIOSS STARTER #---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----| /UNIT/1 unit for mat g cm mus #---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----| #- 2. MATERIALS: #---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----| /MAT/HYD_JCOOK/1/1 Aluminum # RHO_O 2.8 # E NU .734 .33 # A B n epsmax sigmax .0024 .0042 .8 0 .0068 # Pmin -.0223 # C EPS_DOT_0 M Tmelt Tmax .062 1E-6 1 1220 0 # RHOCP 2.59E-5 /EOS/TILLOTSON/1/1 Aluminum # C1 C2 A B .752 .65 .5 1.63 # ER ES VS E0 RHO_0 .135 .081 1.1 0 0 # ALPHA BETA 5 5 /FAIL/JOHNSON/3 # D1 D2 D3 D4 D5 .112 .123 -1.5 .007 0 # EPS_0 Ifail_sh Ifail_so Dadv Ixfem 1E-6 0 1 0 0 #---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----| #ENDDATA /END #---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----| |
the specific volume and E is the internal energy per unit reference volume The pressure is defined by: Region 1: with Region 2: , and Region 3: , or and
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“Metallic Equation of State for Hypervelocity Impact” J.H. Tillotson, General Dynamics, 1962:
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