THE EFFECT OF EXPLOSIONS ON PLASTICS AND ELASTOMERS

The investigation represents an extension of work on the shock resistance of materials under suddenly applied loads. Six elastomeric materials and 11 rigid plastics were prepared in the form of conical specimens and subjected to shocks generated by charges of lead azide detonated at their base. An a...

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Bibliographic Details
Main Authors: MATHEWS,H.E., SHELTON,D.F.
Other Authors: NAVAL ORDNANCE LAB WHITE OAK MD
Format: Text
Language:English
Published: 1961
Subjects:
*ELASTOMERS
*PLASTICS
*SYNTHETIC RUBBER
*THERMOSETTING PLASTICS
AZIDES
COMPOSITE MATERIALS
CONICAL BODIES
DEFORMATION
DETONATORS
ETHYLENES
EXPLOSIVES
FLUORIDES
GLASS TEXTILES
LEAD COMPOUNDS
MECHANICAL PROPERTIES
PHENOLIC PLASTICS
POLYMERS
SHOCK RESISTANCE
Arctic
Online Access:http://www.dtic.mil/docs/citations/AD0276583
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0276583
Description
Summary:The investigation represents an extension of work on the shock resistance of materials under suddenly applied loads. Six elastomeric materials and 11 rigid plastics were prepared in the form of conical specimens and subjected to shocks generated by charges of lead azide detonated at their base. An arctic SBR elastomer showed outstanding resistance to fracture and flow and was the only material tested which retained its shape and intactness at the maximum lead azide charge weight over the temperature range of -54 C to 71 C. Two thermoplastic polymers, Lexan and Cycolac, and a NitrilePhenolic elastomer showed good resistance to shock loading at 23 C and 71 C. Incomplete data indicate that Kel-F is highly resistant to plastic flow and spalling at the site of the explosion but sensitive to tip spalling at -54 C, whereas Teflon spalls appreciably at the site of impact but not at the tip. (Author)

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