Thermodynamically Based Equation of State for Shock Wave Studies : Application to the Design of Experiments on Tin

Journal Article · Fri Jul 28 04:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2263260· OSTI ID:20875736

Buy, Francois; Voltz, Christophe; Llorca, Fabrice ^[1]

---

1. Commissariat a l'Energie Atomique - Centre de Valduc - 21120 Is sur Tille (France)

This work is devoted to the evaluation of complex behavior of metals under shock wave loading. It presents a methodology for the design of specific experiments performed for validation of models and the evaluation of a multiphase equation of state for tin. This material has been selected because of the numerous works completed during the past years on its equation of state. We focus on the solid diagram which presents two solid phases. A thermodynamically based equation of state is developed which gives the opportunity to search for singularities which could be activated under particular shock wave loading. In the temperature -- pressure diagram, the superimposed Hugoniot and release paths make apparent a double shock, release shock configurations. We propose the design and the VISAR results of a calibrated shock -- reshock test for investigating the validity and the efficiency of the model for predicting the thermodynamical state of tin (phases mixing, temperature...). Comparison between numerical and experimental data shows the good accuracy of the results given by the EOS.

• OSTI ID: 20875736
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 845; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACCURACY
COMPARATIVE EVALUATIONS
DESIGN
EFFICIENCY
EQUATIONS OF STATE
LOADING
PHASE DIAGRAMS
PHASE TRANSFORMATIONS
PRESSURE DEPENDENCE
SHOCK WAVES
SINGULARITY
SOLIDS
TIN
VALIDATION