Accession Number : AD0276583

Title :   THE EFFECT OF EXPLOSIONS ON PLASTICS AND ELASTOMERS

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : MATHEWS,H.E. ; SHELTON,D.F.

Report Date : 18 DEC 1961

Pagination or Media Count : 4

Abstract : 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)

Descriptors :   *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

Distribution Statement : APPROVED FOR PUBLIC RELEASE