Determination of the JWL constants for ANFO and emulsion explosives from cylinder test data

Sanchidrián Blanco, José Angel and Castedo Ruiz, Ricardo and López Sánchez, Lina María and Segarra Catasus, Pablo and Santos Yanguas, Anastasio Pedro (2015). Determination of the JWL constants for ANFO and emulsion explosives from cylinder test data. "Central european journal of energetic materials", v. 12 (n. 2); pp. 177-194. ISSN 1733-7178.

Description

Title: Determination of the JWL constants for ANFO and emulsion explosives from cylinder test data
Author/s:
  • Sanchidrián Blanco, José Angel
  • Castedo Ruiz, Ricardo
  • López Sánchez, Lina María
  • Segarra Catasus, Pablo
  • Santos Yanguas, Anastasio Pedro
Item Type: Article
Título de Revista/Publicación: Central european journal of energetic materials
Date: June 2015
ISSN: 1733-7178
Volume: 12
Subjects:
Freetext Keywords: cylinder test; JWL equation of state; LS-DYNA; ANFO; emulsion explosives
Faculty: E.T.S.I. de Minas y Energía (UPM)
Department: Ingeniería Geológica y Minera
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The Jones-Wilkins-Lee (JWL) equation of state parameters for ANFO and emulsion-type explosives have been obtained from cylinder test expansion measurements. The calculation method comprises a new radial expansion function, with a non-zero initial velocity at the onset of the expansion in order to comply with a positive Gurney energy at unit relative volume, as the isentropic expansion from the CJ state predicts. The equations reflecting the CJ state conditions and the measured expansion energy were solved for the JWL parameters by a non-linear least squares scheme. The JWL parameters of thirteen ANFO and emulsion type explosives have been determined in this way from their cylinder test expansion data. The results were evaluated through numerical modelling of the tests with the LS-DYNA hydrocode; the expansion histories from the modelling were compared with the measured ones, and excellent agreement was found.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainIPT-2012-0845-370000UnspecifiedUnspecifiedUnspecified

More information

Item ID: 36228
DC Identifier: http://oa.upm.es/36228/
OAI Identifier: oai:oa.upm.es:36228
Deposited by: Memoria Investigacion
Deposited on: 19 Jun 2015 06:44
Last Modified: 31 May 2019 15:19
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