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Title: Implementation of a transient creep model for natural rock salt as a material-response subroutine for SANCHO

Abstract

The equations for determining the stress in a material response subroutine of SANCHO are formulated using a transient creep model for natural rock salt. It is shown that the equation for the primary creep strain causes the system of equations to be numerically stiff when Runge-Kutta-Fehlberg formulas are used for numerical integration. This stiffness can be eliminated by using an approximate solution of the primary creep strain equation. Sample calculations with a material response subroutine implementing the solution method for the transient creep law are described.

Authors:
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (USA)
OSTI Identifier:
5915722
Report Number(s):
SAND-81-1163
ON: DE82003197; TRN: 82-001115
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; COMPUTER CODES; S CODES; SALT DEPOSITS; CREEP; GEOLOGIC DEPOSITS; MECHANICAL PROPERTIES; 580300* - Mineralogy, Petrology, & Rock Mechanics- (-1989); 052002 - Nuclear Fuels- Waste Disposal & Storage; 990200 - Mathematics & Computers

Citation Formats

Montgomery, S.T. Implementation of a transient creep model for natural rock salt as a material-response subroutine for SANCHO. United States: N. p., 1981. Web.
Montgomery, S.T. Implementation of a transient creep model for natural rock salt as a material-response subroutine for SANCHO. United States.
Montgomery, S.T. Sat . "Implementation of a transient creep model for natural rock salt as a material-response subroutine for SANCHO". United States.
@article{osti_5915722,
title = {Implementation of a transient creep model for natural rock salt as a material-response subroutine for SANCHO},
author = {Montgomery, S.T.},
abstractNote = {The equations for determining the stress in a material response subroutine of SANCHO are formulated using a transient creep model for natural rock salt. It is shown that the equation for the primary creep strain causes the system of equations to be numerically stiff when Runge-Kutta-Fehlberg formulas are used for numerical integration. This stiffness can be eliminated by using an approximate solution of the primary creep strain equation. Sample calculations with a material response subroutine implementing the solution method for the transient creep law are described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {8}
}

Technical Report:
Other availability
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