Accession Number : AD0678381

Title :   PLASTIC YIELD AND REVERSE YIELD WAVES GENERATED BY IMPULSIVE ELECTROMAGNETIC RADIATION.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA UNIV SAN DIEGO LA JOLLA DEPT OF THE AEROSPACE AND MECHANICAL ENGINEERING SCIENCES

Personal Author(s) : Morland,L. W.

Report Date : OCT 1968

Pagination or Media Count : 28

Abstract : Absorption of radiation through a thin layer adjacent to an irradiated, stress free, surface causes rapid heating and the generation of stress waves. Temperature rises sufficient to cause plastic yielding in the initial stress jump and reverse yielding during the subsequent wave propagation are considered under the assumption of uni-axial strain. An elastic-plastic wave solution is constructed and compared with the purely elastic solution. In particular the reduced compressive and tensile stresses in the outgoing wave, and the pulse spread, are illustrated. (Author)

Descriptors :   (*ELECTROMAGNETIC RADIATION, ABSORPTION), (*MECHANICAL WAVES, PROPAGATION), STRESSES, HEATING, WAVE FUNCTIONS, EQUATIONS OF MOTION

Subject Categories : Acoustics
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE