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

Title: APPLYING MICRO-MECHANICS TO FINITE ELEMENT SIMULATIONS OF SPLIT HOPKINSON PRESSURE BAR EXPERIMENTS ON HIGH EXPLOSIVES

Abstract

No abstract prepared.

Authors:
;
Publication Date:
Research Org.:
Los Alamos National Lab., NM (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
783217
Report Number(s):
LA-UR-01-3491
TRN: AH200134%%220
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 Jun 2001
Country of Publication:
United States
Language:
English
Subject:
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; CHEMICAL EXPLOSIVES; COMBUSTION KINETICS; MECHANICS; COMPUTERIZED SIMULATION; FINITE ELEMENT METHOD

Citation Formats

E. M. MAS, and B. E. CLEMENTS. APPLYING MICRO-MECHANICS TO FINITE ELEMENT SIMULATIONS OF SPLIT HOPKINSON PRESSURE BAR EXPERIMENTS ON HIGH EXPLOSIVES. United States: N. p., 2001. Web.
E. M. MAS, & B. E. CLEMENTS. APPLYING MICRO-MECHANICS TO FINITE ELEMENT SIMULATIONS OF SPLIT HOPKINSON PRESSURE BAR EXPERIMENTS ON HIGH EXPLOSIVES. United States.
E. M. MAS, and B. E. CLEMENTS. 2001. "APPLYING MICRO-MECHANICS TO FINITE ELEMENT SIMULATIONS OF SPLIT HOPKINSON PRESSURE BAR EXPERIMENTS ON HIGH EXPLOSIVES". United States. doi:. https://www.osti.gov/servlets/purl/783217.
@article{osti_783217,
title = {APPLYING MICRO-MECHANICS TO FINITE ELEMENT SIMULATIONS OF SPLIT HOPKINSON PRESSURE BAR EXPERIMENTS ON HIGH EXPLOSIVES},
author = {E. M. MAS and B. E. CLEMENTS},
abstractNote = {No abstract prepared.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2001,
month = 6
}

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:
  • Abstract not provided.
  • Abstract not provided.
  • The results of compressive high strain-rate experiments on compacted sand are presented. Experiments were conducted on a 60.3 mm split Hopkinson pressure bar (SHPB). The experiments showed that the assumptions necessary for a valid SHPB experiment are satisfied when using compacted sand samples constrained to a nearly uniaxial strain state. Results show that the sample stress-strain response is governed principally by the initial sample gas porosity, and that no strain-rate dependence is exhibited at sample strains less than the initial gas porosity. Several stress-strain curves are presented for samples prepared at several combinations of moisture content and density with appliedmore » stresses and strain rates up to 520 MPa and 4000 sec/sup -1/, respectively.« less
  • The finite element method was investigated for its ability to analyze the split Hopkinson bar apparatus used in studying the dynamic properties of materials. This is a stress-wave problem in two dimensions complicated by material interfaces. The finite element method has not been widely used in studying transient problems, particularly the wave phenomena found in cylindrical bars. An explicit isoparametric finite element computer code, HONDO, was investigated for its accuracy in solving stress-wave propagation problems in cylindrical bars in one and two dimensions. Once verified, HONDO was then checked against a two-dimensional finite difference wave code, TOODY, for solution accuracymore » and computational time in analyzing the split Hopkinson bar. HONDO is capable of using fewer mesh points than TOODY. While computer time is comparable, HONDO requires less storage, an advantage to experimentalists with smaller computer facilities.« less