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Scientific and Technical Aerospace Reports Volume 39 April 6, 2001

Scientific and Technical Aerospace Reports Volume 39 April 6, 2001

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development <strong>and</strong> manufacture of large rocket motors. The ramifications are higher development costs <strong>and</strong> severe limitations on<br />

performance improvements. This paper outlines the current efforts of the Air Force Research Laboratory Propulsion Directorate,<br />

Thiokol, Atlantic Research Corporation, <strong>and</strong> Naval Air Warfare Center to unite the solid rocket community into developing<br />

acceptable alternate test protocols that could fulfill the intent of TB 700-2 <strong>and</strong> be considered by the Department of Defense Explosive<br />

Safety Board (DDESB) for incorporation into a future revision to TB 700-2.<br />

Author<br />

Classifications; Explosives; Hazards; Safety Management; Experiment Design<br />

<strong>2001</strong>0025037 Naval Air Warfare Center, Center Weapons Div., China Lake, CA USA<br />

Reactive Flow Modeling of the SLSGT: Progress Towards Developing A New Shock Sensitivity Test for Hazard Classification<br />

Miller, Philip J., Naval Air Warfare Center, USA; Boggs, Thomas L., Naval Air Warfare Center, USA; Graham, Kenneth J., Atlantic<br />

Research Corp., USA; JANNAF 19th Propulsion Systems Hazards Subcommittee Meeting; November 2000; <strong>Volume</strong> 1, pp.<br />

153-164; In English; See also <strong>2001</strong>0025025; No Copyright; Avail: CPIA, 10630 Little Patuxent Pkwy., Suite 202, Columbia, MD<br />

21044-3200 HC<br />

Many have expressed concerns over the alternate hazard classification test protocol currently called out in the Department<br />

of Defense Ammunition <strong>and</strong> Explosives Hazard Classification Procedures, document TB 700-2 (Army), NAVSEAINST 8020.8B<br />

(Navy), TO 11a-1-47 (Air Force). One of the oft heard complaints is that the protocol calls out tests that are ”over-kill” <strong>and</strong> not<br />

representative of actual credible safety <strong>and</strong> hazard events associated with storage, h<strong>and</strong>ling <strong>and</strong> transportation of energetic materials<br />

<strong>and</strong> articles. The Super Large Scale Gap Test (SLSGT), <strong>and</strong> the associated zero card criteria, has especially come under fire.<br />

This paper discusses a hydrocode modeling effort that will be used to develop an alternative gap test to assess hazard classification.<br />

Based on the computations, recommendations will be made for a more realistic replacement for the current gap tests called out<br />

in TB 700-2.<br />

Author<br />

Classifications; Explosives; Hazards; Training Devices; Experiment Design; Shock Tests; Computer Systems Simulation; Sensitivity<br />

Analysis<br />

<strong>2001</strong>0025038 Naval Air Warfare Center, Weapons Div., China Lake, CA USA<br />

Experimental Input Parameters Required for Modeling the Response of PBXN-109 to Cookoff<br />

Atwood, A. I., Naval Air Warfare Center, USA; Curran, P. O., Naval Air Warfare Center, USA; Hanson-Parr, D. M., Naval Air<br />

Warfare Center, USA; Parr, T. P., Naval Air Warfare Center, USA; Ciaramitaro, D. A., Naval Air Warfare Center, USA; JANNAF<br />

19th Propulsion Systems Hazards Subcommittee Meeting; November 2000; <strong>Volume</strong> 1, pp. 165-178; In English; See also<br />

<strong>2001</strong>0025025; No Copyright; Avail: CPIA, 10630 Little Patuxent Pkwy., Suite 202, Columbia, MD 21044-3200 HC<br />

This paper describes some of the experimental parameters required for input into models being developed that will describe<br />

cookoff reaction violence. Thermal, mechanical, physical <strong>and</strong> chemical characteristics of PBXN-109 explosive are being generated<br />

as part of an emerging protocol for validation of cookoff hazards models. A single of PBXN-109, lot 991206 was formulated<br />

<strong>and</strong> is being used in the cookoff model validation project. Experimental data describing the thermal diffusively, conductivity <strong>and</strong><br />

specific heat with respect to temperature are presented. Initial void content <strong>and</strong> bulk modulus for the pristine sample as well as<br />

samples subjected to thermal conditioning have been measured. The effect of temperature with respect to weight loss <strong>and</strong> gas<br />

evolution were measured for the PBXN- 109 sample. Steady state combustion measurements were also made.<br />

Author<br />

Data Acquisition; Computer Systems Simulation; Combustion; Mechanical Properties; Temperature Effects<br />

<strong>2001</strong>00250<strong>39</strong> S<strong>and</strong>ia National Labs., Albuquerque, NM USA<br />

Mechanical Response of Heated PBXN-109<br />

Kaneshige, M. J., S<strong>and</strong>ia National Labs., USA; Renlund, A. M., S<strong>and</strong>ia National Labs., USA; Schmitt, R. G., S<strong>and</strong>ia National<br />

Labs., USA; JANNAF 19th Propulsion Systems Hazards Subcommittee Meeting; November 2000; <strong>Volume</strong> 1, pp. 179-190; In<br />

English; See also <strong>2001</strong>0025025; Sponsored in part by the Office of Munitions under TCG-III<br />

Contract(s)/Grant(s): DE-AC04-94AL-85000; No Copyright; Avail: CPIA, 10630 Little Patuxent Pkwy., Suite 202, Columbia,<br />

MD 21044-3200 HC<br />

Mechanical property characterization experiments have been performed on PBXN-109 in the hot cell <strong>and</strong> scale-up hot cell<br />

devices at S<strong>and</strong>ia National Laboratories. These devices are designed to measure quasi-static properties such as bulk modulus <strong>and</strong><br />

creep rates of energetic materials under conditions leading up to cook-off. They can also detect gas pressurization due to decomposition.<br />

These property data are required for modeling <strong>and</strong> simulation of cook-off. The scale-up hot cell is particularly suited<br />

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