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

Title: An approach to simulate the cook-off response of large scale munitions using small scale tests and analysis.

Abstract

Abstract not provided.

Authors:
; ; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
Sponsor Funded
OSTI Identifier:
1390465
Report Number(s):
SAND2016-8767C
647194
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the Insensitive Munitions and Energetic Materials Technology Symposium held September 12-15, 2016 in Nashville, TN.
Country of Publication:
United States
Language:
English

Citation Formats

Moussa, N. Albert, Devarakonda, Vijay V., Kaneshige, Michael J., and Washburn, Ephraim. An approach to simulate the cook-off response of large scale munitions using small scale tests and analysis.. United States: N. p., 2016. Web.
Moussa, N. Albert, Devarakonda, Vijay V., Kaneshige, Michael J., & Washburn, Ephraim. An approach to simulate the cook-off response of large scale munitions using small scale tests and analysis.. United States.
Moussa, N. Albert, Devarakonda, Vijay V., Kaneshige, Michael J., and Washburn, Ephraim. Thu . "An approach to simulate the cook-off response of large scale munitions using small scale tests and analysis.". United States. doi:. https://www.osti.gov/servlets/purl/1390465.
@article{osti_1390465,
title = {An approach to simulate the cook-off response of large scale munitions using small scale tests and analysis.},
author = {Moussa, N. Albert and Devarakonda, Vijay V. and Kaneshige, Michael J. and Washburn, Ephraim},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Sep 01 00:00:00 EDT 2016},
month = {Thu Sep 01 00:00:00 EDT 2016}
}

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:
  • Electricite de France has conducted a large program including experiments on large-size cladded specimens and their interpretations to evaluate different methods of fracture analysis used in French safety studies regarding the risk of fast fracture in reactor pressure vessels. Four specimens made of ferritic steel A508 C13 with stainless steel cladding, containing small artificial underclad defects, have been tested in four-point bending. Experiments have been conducted at very low temperature, and crack instability by cleavage fracture without crack arrest was obtained in base metal. The tests have been interpreted using the local approach to cleavage fracture (Weibull model) by two-dimensionalmore » finite element computations. The Weibull model parameters have been determined using axisymmetrical notched specimens. The probability of failure has been evaluated in each test using finite element analyses with varying mesh sizes. The results show an important effect of the size of the elements at the crack tip on the calculated probability of failure. Those effects are confirmed using the model of a CT specimen. Also discussed is the shallow flaw effect with the Weibull model.« less
  • No abstract prepared.
  • Developing a predictive model for cook-off is a difficult task. Recent experiments with PBX 9501 have shown that under certain heating and confinement conditions it is possible to generate large regions of almost uniform temperature in an explosive. Such regions react violently in a coherent fashion and may have the potential to produce unusually symmetric detonation waves in certain geometries. These results were unexpected before the experiments and have generated considerable additional activity both experimentally and in model building. At this time, there is no unambiguous explanation for the observed behavior, and therefore, there is a considerable number of fledglingmore » models in existence. These models suggest varying and possibly contradictory mechanisms to explain the thermal profiles and wave behavior data. In this paper, we present an approach to model development for cook-off of PBX 9501 based on logic models called process trees. Process trees are well-suited to the task of describing causal sequences and delineating alternative descriptions of observed phenomenology. Therefore, they provide a valuable basis for constructing physical models and integrating them.« less
  • No abstract prepared.
  • Lawrence Livermore National Laboratory (LLNL) has conducted research on oil shale for more than 15 years with recent emphasis on surface retorting employing hot-recycled-solid as the heat carrying media. Results of laboratory and 1-tonne-per-day pilot-scale experiments have been reported elsewhere. We are beginning operation of a 4-tonne-per-day continuous-loop system designed to use commercially sized shale (7-mm) and test key process components suitable for scale-up demonstration and commercial sizes. We describe our 4-tonne-per-day hot-recycled-solid retort and future plans to construct and operate 100 and 1,000 tonne-per-day pilot-scale tests at a mine site in western Colorado. 2 figs., 2 tabs.