Accession Number : AD0441249


Title :   CHARACTERISTIC EMISSIONS FROM AN UNDERGROUND EXPLOSION COMPUTATION TECHNIQUE AND RESULTS,


Corporate Author : ENGINEERING-PHYSICS CO ROCKVILLE MD


Personal Author(s) : Cushing, Vincent ; Losaw, William ; Reily, Dean


Report Date : 31 Jan 1964


Pagination or Media Count : 53


Abstract : The basic equations which describe the propagation of intense mechanical disturbances through geologic media are discussed. Several techniques are described for implementing the numerical solution of the equations of wave propagation applicable to both the region of linear and nonlinear constitutive behavior; and a computer program was written, using a numerical technique which allows one to solve the wave propagation problem for a medium having an equation of state which loads and unloads along different state point loci. Solutions obtained from several test cases are illustrated in graphical form. The computer program is currently being embellished to include the (explosive) wave generation mechanism as well as the wave shape histories. (Author)


Descriptors :   *UNDERGROUND EXPLOSIONS , MATHEMATICAL MODELS , THERMODYNAMICS , SEISMIC WAVES , SHOCK WAVES , SOILS , PARTIAL DIFFERENTIAL EQUATIONS , CODING , PRESSURE , NONLINEAR DIFFERENTIAL EQUATIONS , EQUATIONS OF STATE , COMPUTER PROGRAMMING


Distribution Statement : APPROVED FOR PUBLIC RELEASE