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Title: Center-Ignited Spherical-Mass Explosion (CISME); FY 2018 Report

Abstract

It is not known whether pristine (i.e. mechanically and thermally undamaged) PBX 9501 can transition from a deflagration to a detonation in realistic scenarios, with relevant charge masses and inertial and mechanical confinement. In order to place bounds on the behavior, a series of experiments was conducted in which a spherical PBX 9501 charge is center-ignited using a fiber-delivered infrared laser pulse. Charge diameter was varied from 1.5 in ch to 10 inch. Experiments were conducted in a “bare” (unconfined) configuration, and a confined configuration with 4 mm-thick stainless-steel hemispherical shells bolted together. In all eight experiments, the reaction exhibited a relatively benign pressure burst; no transition to detonation (DDT) was observed. Most of the explosive was unconsumed and recovered post-test. Confined tests demonstrated slightly greater violence than unconfined tests, as anticipated.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1477621
Report Number(s):
LA-UR-18-29651
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
DDT

Citation Formats

Holmes, Matthew David, Parker, Jr., Gary Robert, Heatwole, Eric Mann, Feagin, Trevor Alexander, Broilo, Robert M., Dickson, Peter M., Vaughan, Larry Dean, and Erickson, Michael Andrew Englert. Center-Ignited Spherical-Mass Explosion (CISME); FY 2018 Report. United States: N. p., 2018. Web. doi:10.2172/1477621.
Holmes, Matthew David, Parker, Jr., Gary Robert, Heatwole, Eric Mann, Feagin, Trevor Alexander, Broilo, Robert M., Dickson, Peter M., Vaughan, Larry Dean, & Erickson, Michael Andrew Englert. Center-Ignited Spherical-Mass Explosion (CISME); FY 2018 Report. United States. doi:10.2172/1477621.
Holmes, Matthew David, Parker, Jr., Gary Robert, Heatwole, Eric Mann, Feagin, Trevor Alexander, Broilo, Robert M., Dickson, Peter M., Vaughan, Larry Dean, and Erickson, Michael Andrew Englert. Thu . "Center-Ignited Spherical-Mass Explosion (CISME); FY 2018 Report". United States. doi:10.2172/1477621. https://www.osti.gov/servlets/purl/1477621.
@article{osti_1477621,
title = {Center-Ignited Spherical-Mass Explosion (CISME); FY 2018 Report},
author = {Holmes, Matthew David and Parker, Jr., Gary Robert and Heatwole, Eric Mann and Feagin, Trevor Alexander and Broilo, Robert M. and Dickson, Peter M. and Vaughan, Larry Dean and Erickson, Michael Andrew Englert},
abstractNote = {It is not known whether pristine (i.e. mechanically and thermally undamaged) PBX 9501 can transition from a deflagration to a detonation in realistic scenarios, with relevant charge masses and inertial and mechanical confinement. In order to place bounds on the behavior, a series of experiments was conducted in which a spherical PBX 9501 charge is center-ignited using a fiber-delivered infrared laser pulse. Charge diameter was varied from 1.5 in ch to 10 inch. Experiments were conducted in a “bare” (unconfined) configuration, and a confined configuration with 4 mm-thick stainless-steel hemispherical shells bolted together. In all eight experiments, the reaction exhibited a relatively benign pressure burst; no transition to detonation (DDT) was observed. Most of the explosive was unconsumed and recovered post-test. Confined tests demonstrated slightly greater violence than unconfined tests, as anticipated.},
doi = {10.2172/1477621},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {10}
}

Technical Report:

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