University of Illinois Urbana-Champaign

Transient elastic waves in transversely isotropic plate

Weaver, Richard L.; Sachse, Wolfgang; Kim, Kwang Yul

Permalink

https://hdl.handle.net/2142/112431

Description

Title
Transient elastic waves in transversely isotropic plate
Author(s)
  • Weaver, Richard L.
  • Sachse, Wolfgang
  • Kim, Kwang Yul
Issue Date
1993-12
Keyword(s)
  • Transversely Isotropic Plate
  • Transient Elastic Waves
Abstract
The elastodynamic response of a thick plate, with the axis of transverse isotropy normal to the plate surface, is calculated by double numerical inverse transforms, a method particularly well suited for calculations of responses in the near field of layered structures. Applications of these calculations include point-source/point- receiver ultrasonics, quantitative acoustic emission measurements, and seismology. The singularities of the integrand are eliminated by the introduction of a small, but non- zero, imaginary part to the frequency. We discuss issues of numerical efficiency and accuracy in the evaluation of the resulting integrals. The method can be generalized to calculate the responses in materials of more general symmetry, in viscoelastic materials and to include the effects of finite aperture sources and receivers. The calculated responses are compared to those measured in a single crystal specimen of zinc.
Publisher
Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report Name or Number
  • TAM R 740
  • 1993-6038
ISSN
0073-5264
Type of Resource
text
Language
eng
Permalink
http://hdl.handle.net/2142/112431
Sponsor(s)/Grant Number(s)
National Science Foundation 93/12; Office of Naval Research 93/12
Copyright and License Information
Copyright 1993 Board of Trustees of the University of Illinois

Owning Collections

Technical Reports - Theoretical and Applied Mechanics (TAM) PRIMARY
TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.