Location

Snowbird, UT, USA

Start Date

1-1-1999 12:00 AM

Description

For the last two decades the quasi-static approximation (QSA) has been the most commonly used approach for describing the interaction of ultrasonic waves with imperfect interfaces. The QSA is a low-frequency approximation and it can be used when the thickness of the interface is much smaller than the wavelength of the waves used to inspect the interface. Its most complete formulation has been presented by Baik and Thompson [1], and models the real interfacial imperfections as continuous, uniform distributions of springs and masses along the interface plane (see Fig 1).

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

18B

Chapter

Chapter 5: Engineered Materials

Section

Coatings, Interfaces, and Bonds

Pages

1471-1478

DOI

10.1007/978-1-4615-4791-4_189

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

The Quasi-Static Approximation for Cracked Interfaces in Layered Systems

Snowbird, UT, USA

For the last two decades the quasi-static approximation (QSA) has been the most commonly used approach for describing the interaction of ultrasonic waves with imperfect interfaces. The QSA is a low-frequency approximation and it can be used when the thickness of the interface is much smaller than the wavelength of the waves used to inspect the interface. Its most complete formulation has been presented by Baik and Thompson [1], and models the real interfacial imperfections as continuous, uniform distributions of springs and masses along the interface plane (see Fig 1).