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Title: EFFECTS OF MATERIALS STRENGTH ON STRONGLY-SHOCKED NONENERGETIC MATERIALS

Abstract

No abstract prepared.

Authors:
Publication Date:
Research Org.:
Los Alamos National Lab., NM (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
783683
Report Number(s):
LA-UR-01-4194
TRN: US200306%%8
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: Conference title not supplied, Conference location not supplied, Conference dates not supplied; Other Information: PBD: 1 Jul 2001
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; MATERIALS; MECHANICAL PROPERTIES; IMPACT SHOCK

Citation Formats

S. M. VALONE. EFFECTS OF MATERIALS STRENGTH ON STRONGLY-SHOCKED NONENERGETIC MATERIALS. United States: N. p., 2001. Web.
S. M. VALONE. EFFECTS OF MATERIALS STRENGTH ON STRONGLY-SHOCKED NONENERGETIC MATERIALS. United States.
S. M. VALONE. Sun . "EFFECTS OF MATERIALS STRENGTH ON STRONGLY-SHOCKED NONENERGETIC MATERIALS". United States. doi:. https://www.osti.gov/servlets/purl/783683.
@article{osti_783683,
title = {EFFECTS OF MATERIALS STRENGTH ON STRONGLY-SHOCKED NONENERGETIC MATERIALS},
author = {S. M. VALONE},
abstractNote = {No abstract prepared.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jul 01 00:00:00 EDT 2001},
month = {Sun Jul 01 00:00:00 EDT 2001}
}

Conference:
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  • The role of materials strength in changing the shock dynamics in strongly-shocked nonenergetic materials is still a matter of investigation because materials strength properties become convoluted with other materials properties and the shock strength. The regime under consideration here is one in which the material in question is shocked strongly enough to be treated as a fluid, but not strongly enough to be treated as a simple fluid. The present work takes a case-study approach in which two models of the constitutive properties of the complex fluid are applied to shock instability for two different polymeric materials. The intent heremore » is to obtain some measure of the sensitivity of the model predictions to variations in the complex fluid constitutive properties. The linear time-regime in a Richtmyer-Meshkov instability is modeled with the viscosity dependence of Mikaelian and the nonlinear time-regime is modeled with an aerodynamic viscous-drag model. Each combination of materials and models will be examined as a function of shock strength, Atwood number, and variation in materials constitutive properties. Although the these models are NOT the most advanced, they are useful for illustrating orders of magnitude.« less
  • No abstract prepared.
  • Unloading wave experiments were used to determine the material strength and release adiabats in pure and 6061-T6 aluminum alloy over the stress range of 50 to 100 GPa. The experimental adiabats are in good agreement with theoretical calculations, assuming a constant rho..gamma... The strength measurements show that a maximum occurs for shock states above 20 GPa and that a general softening of the strength is evident between 40 and 100 GPa.