Accession Number : AD0633476
Title : THEORETICAL AND EXPERIMENTAL STUDY OF LOW-VELOCITY PENETRATION PHENOMENA.
Descriptive Note : Final rept. (phases 1 and 2), 25 Jun 63-24 Jun 64,
Corporate Author : UTAH RESEARCH AND DEVELOPMENT CO SALT LAKE CITY
Personal Author(s) : Cannon,Emerson T.
Report Date : 24 JUN 1964
Pagination or Media Count : 105
Abstract : Phase I has consisted of a literature survey to determine the state of the art. The results are summarized and a bibliography is included. It is concluded that semi-empirical correlation formulae and over-simplified theories do not give the results needed for armor design and are inadequate as a guide to understanding low-velocity impact phenomena. Phase II has consisted of the development of a new method of describing the elasto-plastic behavior of a material under impact conditions. The non-linear differential equations involved are expressed in a tensor formulation particularly suitable for computer calculations. The method used is very general and allows a wide variety of boundary conditions and material properties to be used. The work is described and the results of preliminary calculations are presented in this report. (Author)
Descriptors : (*IMPACT PREDICTION, PENETRATION), (*VISCOELASTICITY, IMPACT PREDICTION), VELOCITY, ARMOR, CORRELATION TECHNIQUES, MATHEMATICAL MODELS
Subject Categories : Armor
Distribution Statement : APPROVED FOR PUBLIC RELEASE