Location

Santa Cruz, CA

Start Date

1-1-1984 12:00 AM

Description

One of the classic problems of NDE, that of detecting flaws located near a planar interface, is also relevant to the operation of antennas close to, or penetrating, the earth’s surface. For these various cases, the total field (acoustic, electromagnetic or elastodynamic) can be expressed in terms of direct and interface reflected and transmitted components. In addition, a representation can be developed for the interface fields in terms of some suitable expansion (a continuous spectrum of cylindrical waves, for example). It is the latter feature of such problems that makes their numerical evaluation so challenging, and a self-consistent solution so expensive computationally.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

3A

Chapter

Chapter 3: Eddy Currents

Section

Modeling

Pages

523-534

DOI

10.1007/978-1-4684-1194-2_49

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Numerical Modeling of Objects Near a Penetrable Interface

Santa Cruz, CA

One of the classic problems of NDE, that of detecting flaws located near a planar interface, is also relevant to the operation of antennas close to, or penetrating, the earth’s surface. For these various cases, the total field (acoustic, electromagnetic or elastodynamic) can be expressed in terms of direct and interface reflected and transmitted components. In addition, a representation can be developed for the interface fields in terms of some suitable expansion (a continuous spectrum of cylindrical waves, for example). It is the latter feature of such problems that makes their numerical evaluation so challenging, and a self-consistent solution so expensive computationally.