ELASTIC WAVE THEORY: FUNDAMENTAL RELATIONSHIPS

Authors
  1. Brooke, G.H.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN)
Abstract
This paper summarizes the fundamental relationships between displacement, strain and stress in an elastic medium. These fundamental relationships are used in conjunction with Newtons's Second law of motion to provide the basic equations of motion which describe wave propagation in an elastic medium under stress. In particular, tensor analysis is used to derive wave equations for both compressional and shear waves. These equations are fundamental to wave propagation models used routinely in underwater acoustics. Particular emphasis is placed on the derivation of equations suitable for Parabolic Equation modelling in layered elastic waveguides.
Report Number
DREP-TM-93-29 — Technical Memorandum
Date of publication
01 Jan 1993
Number of Pages
40
DSTKIM No
94-00038
CANDIS No
136211
Format(s):
Hardcopy;Originator's fiche received by DSIS

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