Accession Number : AD0705997

Title :   A STUDY OF HERTZIAN IMPACT ON GLASS AND ALUMINUM HEMISPHERICAL SHELLS WITH MITIGATOR,

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : Yang,Jackson C. S. ; Camper,James R.

Report Date : 05 SEP 1969

Pagination or Media Count : 27

Abstract : Hertzian impact theory and a solution published by E. Reissner for an unrestrained shallow spherical shell are used to find total stress on the inner surface of a hemispherical shell covered by a viscoelastic mitigator. From data obtained by experimental means and published references, it is concluded that Hertzian impact theory is valid for certain type shells as well as solid bodies and that a mitigator will effectively reduce stresses in an impacted shell. (Author)

Descriptors :   (*UNDERWATER VEHICLES, HEMISPHERICAL SHELLS), (*HEMISPHERICAL SHELLS, IMPACT), LOADS(FORCES), PROTECTIVE TREATMENTS, CLADDING, COMPRESSIVE PROPERTIES, EQUATIONS OF MOTION, ALUMINUM, GLASS, MATHEMATICAL ANALYSIS, LOAD DISTRIBUTION

Subject Categories : Marine Engineering
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE