Location

Snowmass Village, CO

Start Date

1-1-1995 12:00 AM

Description

The NDE of real-life situations is based on elastic (ultrasonic) wave propagation, diffraction and scattering in dissipative inhomogeneous isotropic or anisotropic media. Physical phenomena of elastic waves are described by linear Cauchy’s equation of motion and equation of deformation rate [1, 2]. Interpretation of the very complicated behavior of elastic waves, especially in inhomogeneous anisotropic media, requires powerful computational tools to model and study advanced NDT situations. Such a tool is the well-established Elastodynamic Finite Integration Technique (EFIT) basically formulated by Fellinger [3, 4]. Recently, EFIT has been extented to simulate elastic waves in dissipative (viscoelastic) and homogeneous anisotropic media [5, 6].

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

14A

Chapter

Chapter 1: Standard Techniques

Section

Guided Wave Propagation

Pages

251-258

DOI

10.1007/978-1-4615-1987-4_28

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

The Ultrasonic Modeling Code Efit as Applied to Inhomogeneous Dissipative Isotropic and Anisotropic Media

Snowmass Village, CO

The NDE of real-life situations is based on elastic (ultrasonic) wave propagation, diffraction and scattering in dissipative inhomogeneous isotropic or anisotropic media. Physical phenomena of elastic waves are described by linear Cauchy’s equation of motion and equation of deformation rate [1, 2]. Interpretation of the very complicated behavior of elastic waves, especially in inhomogeneous anisotropic media, requires powerful computational tools to model and study advanced NDT situations. Such a tool is the well-established Elastodynamic Finite Integration Technique (EFIT) basically formulated by Fellinger [3, 4]. Recently, EFIT has been extented to simulate elastic waves in dissipative (viscoelastic) and homogeneous anisotropic media [5, 6].