Accession Number : AD0683340

Title :   TRANSIENT EXCITATION OF AN ELASTIC HALF-SPACE BY A POINT LOAD TRAVELING ON THE SURFACE.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA INST OF TECH PASADENA DIV OF ENGINEERING AND APPLIED SCIENCE

Personal Author(s) : Gakenheimer,David C. ; Miklowitz,Julius

Report Date : JAN 1969

Pagination or Media Count : 49

Abstract : The propagation of transient waves in a homogeneous, isotropic, linearly elastic half-space excited by a traveling normal point load is investigated. The load is suddenly applied and then it moves rectilinearly at a constant speed along the free surface. The displacements are derived for the interior of the half-space and for all load speeds. Wave front expansions are obtained from the exact solution, in addition to results pertaining to the steady-state displacement field. The limit case of zero load speed is considered, yielding new results for Lamb's point load problem. (Author)

Descriptors :   (*STRUCTURES, MECHANICAL WAVES), (*MECHANICAL WAVES, PROPAGATION), ELASTIC PROPERTIES, LOADS(FORCES), SHOCK WAVES, SEISMIC WAVES, NUCLEAR EXPLOSIONS, SUPERSONIC AIRCRAFT, INTEGRAL TRANSFORMS, FOURIER ANALYSIS, COMPLEX VARIABLES, BOUNDARY VALUE PROBLEMS

Subject Categories : Structural Engineering and Building Technology
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE