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Title: ASC-AD penetration modeling FY05 status report.

Abstract

Sandia currently lacks a high fidelity method for predicting loads on and subsequent structural response of earth penetrating weapons. This project seeks to test, debug, improve and validate methodologies for modeling earth penetration. Results of this project will allow us to optimize and certify designs for the B61-11, Robust Nuclear Earth Penetrator (RNEP), PEN-X and future nuclear and conventional penetrator systems. Since this is an ASC Advanced Deployment project the primary goal of the work is to test, debug, verify and validate new Sierra (and Nevada) tools. Also, since this project is part of the V&V program within ASC, uncertainty quantification (UQ), optimization using DAKOTA [1] and sensitivity analysis are an integral part of the work. This project evaluates, verifies and validates new constitutive models, penetration methodologies and Sierra/Nevada codes. In FY05 the project focused mostly on PRESTO [2] using the Spherical Cavity Expansion (SCE) [3,4] and PRESTO Lagrangian analysis with a preformed hole (Pen-X) methodologies. Modeling penetration tests using PRESTO with a pilot hole was also attempted to evaluate constitutive models. Future years work would include the Alegra/SHISM [5] and AlegrdEP (Earth Penetration) methodologies when they are ready for validation testing. Constitutive models such as Soil-and-Foam, the Sandia Geomodelmore » [6], and the K&C Concrete model [7] were also tested and evaluated. This report is submitted to satisfy annual documentation requirements for the ASC Advanced Deployment program. This report summarizes FY05 work performed in the Penetration Mechanical Response (ASC-APPS) and Penetration Mechanics (ASC-V&V) projects. A single report is written to document the two projects because of the significant amount of technical overlap.« less

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Sandia National Laboratories
Sponsoring Org.:
USDOE
OSTI Identifier:
881628
Report Number(s):
SAND2006-1873
TRN: US200702%%183
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; EARTH PENETRATORS; SENSITIVITY ANALYSIS; TESTING; WEAPONS; MATHEMATICAL MODELS; STRESS ANALYSIS; RESPONSE FUNCTIONS; Weapons systems.; Structural response; Penetration mechanics.

Citation Formats

Kistler, Bruce L., Ostien, Jakob T., Chiesa, Michael L., Bhutani, Nipun, Ohashi, Yuki, Marin, Esteban B., Korellis, John S., Settgast, Randy, and Antoun, Bonnie R. ASC-AD penetration modeling FY05 status report.. United States: N. p., 2006. Web. doi:10.2172/881628.
Kistler, Bruce L., Ostien, Jakob T., Chiesa, Michael L., Bhutani, Nipun, Ohashi, Yuki, Marin, Esteban B., Korellis, John S., Settgast, Randy, & Antoun, Bonnie R. ASC-AD penetration modeling FY05 status report.. United States. doi:10.2172/881628.
Kistler, Bruce L., Ostien, Jakob T., Chiesa, Michael L., Bhutani, Nipun, Ohashi, Yuki, Marin, Esteban B., Korellis, John S., Settgast, Randy, and Antoun, Bonnie R. Sat . "ASC-AD penetration modeling FY05 status report.". United States. doi:10.2172/881628. https://www.osti.gov/servlets/purl/881628.
@article{osti_881628,
title = {ASC-AD penetration modeling FY05 status report.},
author = {Kistler, Bruce L. and Ostien, Jakob T. and Chiesa, Michael L. and Bhutani, Nipun and Ohashi, Yuki and Marin, Esteban B. and Korellis, John S. and Settgast, Randy and Antoun, Bonnie R.},
abstractNote = {Sandia currently lacks a high fidelity method for predicting loads on and subsequent structural response of earth penetrating weapons. This project seeks to test, debug, improve and validate methodologies for modeling earth penetration. Results of this project will allow us to optimize and certify designs for the B61-11, Robust Nuclear Earth Penetrator (RNEP), PEN-X and future nuclear and conventional penetrator systems. Since this is an ASC Advanced Deployment project the primary goal of the work is to test, debug, verify and validate new Sierra (and Nevada) tools. Also, since this project is part of the V&V program within ASC, uncertainty quantification (UQ), optimization using DAKOTA [1] and sensitivity analysis are an integral part of the work. This project evaluates, verifies and validates new constitutive models, penetration methodologies and Sierra/Nevada codes. In FY05 the project focused mostly on PRESTO [2] using the Spherical Cavity Expansion (SCE) [3,4] and PRESTO Lagrangian analysis with a preformed hole (Pen-X) methodologies. Modeling penetration tests using PRESTO with a pilot hole was also attempted to evaluate constitutive models. Future years work would include the Alegra/SHISM [5] and AlegrdEP (Earth Penetration) methodologies when they are ready for validation testing. Constitutive models such as Soil-and-Foam, the Sandia Geomodel [6], and the K&C Concrete model [7] were also tested and evaluated. This report is submitted to satisfy annual documentation requirements for the ASC Advanced Deployment program. This report summarizes FY05 work performed in the Penetration Mechanical Response (ASC-APPS) and Penetration Mechanics (ASC-V&V) projects. A single report is written to document the two projects because of the significant amount of technical overlap.},
doi = {10.2172/881628},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {4}
}

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