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
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE