ELASTIC WAVE DECAY,

Abstract

A microscopic viscosity approach is applied to the problem of attenuating elastic waves in solids having straight dislocations lying in energy wells biased by the applied shear stress. This model is found to be lacking. From analogy with ultrasonic attenuation, a more appropriate model based upon the loss mechanism applicable to the so-called Fatigue range of ultrasonics is proposed. The question of the shock front thickness associated with the decaying elastic wave is also touched upon. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 22, 1963
Accession Number
AD0419842

Entities

People

  • Paul Harris

Organizations

  • Naval Ordnance Laboratory

Tags

DTIC Thesaurus Topics

  • Acoustic Waves
  • Attenuation
  • Dislocations
  • Elastic Waves
  • Losses
  • Mechanical Waves
  • Physical Properties
  • Shear Stresses
  • Stresses
  • Thickness
  • Ultrasonics
  • Viscosity
  • Waves

Fields of Study

  • Physics

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Plasma Physics / Magnetohydrodynamics
  • Theoretical Analysis.