skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: The Importance of the Initial State in Understanding Shocked Porous Materials.

Abstract

Abstract not provided.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Laboratories, Livermore, CA
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1427955
Report Number(s):
SAND2017-2770C
651728
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the APS March Meeting 2017 held March 13-17, 2017 in New Orleans, LA.
Country of Publication:
United States
Language:
English

Citation Formats

Mattsson, Thomas, Cochrane, Kyle, Lane, J. Matthew D., Weck, Philippe F, Vogler, Tracy, and Shulenburger, Luke. The Importance of the Initial State in Understanding Shocked Porous Materials.. United States: N. p., 2017. Web.
Mattsson, Thomas, Cochrane, Kyle, Lane, J. Matthew D., Weck, Philippe F, Vogler, Tracy, & Shulenburger, Luke. The Importance of the Initial State in Understanding Shocked Porous Materials.. United States.
Mattsson, Thomas, Cochrane, Kyle, Lane, J. Matthew D., Weck, Philippe F, Vogler, Tracy, and Shulenburger, Luke. Wed . "The Importance of the Initial State in Understanding Shocked Porous Materials.". United States. doi:. https://www.osti.gov/servlets/purl/1427955.
@article{osti_1427955,
title = {The Importance of the Initial State in Understanding Shocked Porous Materials.},
author = {Mattsson, Thomas and Cochrane, Kyle and Lane, J. Matthew D. and Weck, Philippe F and Vogler, Tracy and Shulenburger, Luke},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2017},
month = {Wed Mar 01 00:00:00 EST 2017}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • This literature review examines potential sources of colloids and enhanced adsorption that may stem from materials introduced into a repository setting, with a view towards prioritizing future studies. Three major sources of colloids are reviewed: metals, cements, and organics. Know chemical influences on colloid formation and mechanisms by which introduced materials may become involved are considered with respect to gradients, chemical species, pH, time, temperature, radiolysis, redox state, and microbial activity. Areas that have not been addressed but may have significant consequences in a repository setting are identified.
  • Foams, porous solids and granular materials have a characteristic Hugoniot locus that for weak shocks is concave in the (particle velocity, shock velocity)-plane. An equation of state (EOS) that has this property can be constructed implicitly from a Helmholtz free energy of the form {Psi}{sub s}(V,T,{phi}) = {Psi}{sub s}(V,T)+B({phi}) where the equilibrium volume fraction {phi}{sub eq} is determined by minimizing {Psi}, i.e., the condition {partial_derivative}{sub {psi}} {Psi} = 0. For many cases, a Hayes EOS for the pure solid {Psi}{sub s}(V,T) is adequate. This provides a thermodynamically consistent framework for the P-{alpha} model. For this form of EOS the volumemore » fraction has a similar effect to an endothermic reaction in that the partial Hugoniot loci with fixed {psi} are shifted to the left in the (V,P)-plane with increasing f. The equilibrium volume fraction can then be chosen to match the concavity of the principal Hugoniot locus. An example is presented for the polymer estane. A small porosity of only 1.4 percent is required to match the experimental concavity in the Hugoniot data. This type of EOS can also be used to obtain the so-called ''universal'' Hugoniot for liquids.« less
  • During a cast start-up, the ingot butt is submitted to severe cooling conditions resulting from direct water cooling. These cooling conditions, which were determined through experience acquired by technical and production personnel, are based on safety and the production of a defect-free ingot butt. In spite of the precautions taken to ensure a flawless cast start-up, unforeseen defects may occur. The effectiveness of the corrective measures to be brought to the casting practice therefore depends greatly on the understanding of the phenomenon in question. This paper presents an experimental approach to understanding the formation of unusual subsurface ingot butt defectsmore » observed on can body stock. It describes the quantitative technique developed to evaluate ingot butt cooling conditions during cast start-ups as well as their correlation to the subsurface defect observed. Finally, it describes how quantification of the ingot cooling conditions is essential in implementing the appropriate corrective actions required to eliminate the defect.« less
  • Bulk power system reliability is of critical importance to the electricity sector. Complete and accurate information on events affecting the bulk power system is essential for assessing trends and efforts to maintain or improve reliability. Yet, current sources of this information were not designed with these uses in mind. They were designed, instead, to support real-time emergency notification to industry and government first-responders. This paper reviews information currently collected by both industry and government sources for this purpose and assesses factors that might affect their usefulness in supporting the academic literature that has relied upon them to draw conclusions aboutmore » the reliability of the US electric power system.« less