
Accession Number : AD0286485
Title : THEORETICAL STUDY OF ENERGY DISTRIBUTION IN A HALFSPACE UNDER DYNAMIC LOADS
Corporate Author : GENERAL AMERICAN TRANSPORTATION CORP NILES ILL
Personal Author(s) : HARKIN,J.B.
Report Date : JUL 1962
Pagination or Media Count : 55
Abstract : An analytical procedure is developed for predicting freefield ground motions and stresses for use in the design of underground protective structures. Analytic expressions in integral form are obtained for the solutions to the problems of an elastic halfsp ce and a viscoelastic halfspace, each under an axisymmetric timedependent normal loading possessing the essential features of a nuclear burst. A computer code for the evaluation of these expressions is developed through the use of FourierLegendre series and other special analytical techniques. Graphs are presented for one case of the elastic problem. (Author)
Descriptors : *EARTH, *LOADING, *MATHEMATICAL PREDICTION, *MOTION, *SEISMIC WAVES, *UNDERGROUND STRUCTURES, AIR, BLAST, COMPUTERS, NUMERICAL ANALYSIS, PARTIAL DIFFERENTIAL EQUATIONS, POLYNOMIALS, PROGRAMMING (COMPUTERS), SERIES(MATHEMATICS), SHEAR STRESSES, SHOCK WAVES, STRESSES, THEORY
Distribution Statement : APPROVED FOR PUBLIC RELEASE