RAYLEIGH-LAMB WAVE PROPAGATION IN ANISTOTROPIC MEDIA.

Abstract

The stiffness matrix relating stress to strain in the generalized Hooke's Law can, for anisotropic materials, be written in terms of the isotropic matrix plus a set of perturbation terms. This matrix and the Rayleigh-Lamb displacement field are used to determine special forms of the equilibrium equations for anisotropic Rayleigh-Lamb waves. The forms of anisotropy were restricted to the hexagonal, orthorhombic, cubic, and tetragonal crystal classes, and a frequency equation which is an anisotropic analog to the equation published by Lamb in 1917 was developed for these materials. Perturbation effects on the frequency equations were then examined. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1968
Accession Number
AD0672972

Entities

People

  • Charles David Mosbruger

Organizations

  • Air Force Institute of Technology

Tags

DTIC Thesaurus Topics

  • Anisotropy
  • Arrhenius Equation
  • Displacement
  • Equations
  • Frequency
  • Materials
  • Mathematics
  • Perturbations
  • Physical Properties
  • Stiffness
  • Wave Propagation

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Calculus or Mathematical Analysis
  • Materials Science and Engineering.