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Burning rate for steel-cased, pressed binderless HMXThe burning behavior of pressed binderless HMX laterally confined in 6.4 mm i.d. steel cases was measured over the pressure range 1.45 to 338 MPa in a constant pressure strand burner. The measured regression rates are compared to those reported previously for unconfined samples. It is shown that lateral confinement results in a several-fold decrease in the regression rate for the coarse particle size HMX above the transition to super fast regression. For class E samples, confinement shifts the transition to super fast regression from low pressure to high pressure. These results are interpreted in terms of the previously proposed progressive deconsolidation mechanism. Preliminary holographic photography and closed bomb tests are also described. Theoretical one dimensional modeling calculations were carried out to predict the expected flame height (particle burn out distance) as a function of particle size and pressure for binderless HMX burning by a progressive deconsolidation mechanism.
Document ID
19810007782
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fifer, R. A.
(Ballistic Research Labs. Aberdeen Proving Ground, MD, United States)
Cole, J. E.
(Ballistic Research Labs. Aberdeen Proving Ground, MD, United States)
Date Acquired
August 11, 2013
Publication Date
November 1, 1980
Publication Information
Publication: NASA. Langley Res. Center The 17th JANNAF Combust. Meeting, Vol. 2,
Subject Category
Propellants And Fuels
Accession Number
81N16298
Distribution Limits
Public
Copyright
Other

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