Event Title

Treatment of Attenuation and Dispersion in the Propagation of Ultrasonic Pulses

Location

Snowbird, UT, USA

Start Date

1-1-1999 12:00 AM

Description

Computer simulation techniques are continuously expanding their role as basic tools in fields, such as Quantitative Non Destructive Evaluation, in which it is important to gain a good understanding of the propagation mechanisms of waves or pulses in complex media. A method, which has been designed for the above purpose and is particularly efficient, especially if applied in conjunction with parallel processing, is the Local Interaction Simulation Approach (LISA)[l–3]. As spin-offs of LISA, the Sharp Interface Model (SIM)[4] and the Spring Model have overcome [5] the difficulties encountered in treating sharp or imperfect contact interfaces by means of the usual Finite Difference (FD) techniques.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

18A

Chapter

Chapter 1: Elastic Waves and Ultrasonic Techniques

Section

Scattering/Propagation

Pages

103-109

DOI

10.1007/978-1-4615-4791-4_12

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Treatment of Attenuation and Dispersion in the Propagation of Ultrasonic Pulses

Snowbird, UT, USA

Computer simulation techniques are continuously expanding their role as basic tools in fields, such as Quantitative Non Destructive Evaluation, in which it is important to gain a good understanding of the propagation mechanisms of waves or pulses in complex media. A method, which has been designed for the above purpose and is particularly efficient, especially if applied in conjunction with parallel processing, is the Local Interaction Simulation Approach (LISA)[l–3]. As spin-offs of LISA, the Sharp Interface Model (SIM)[4] and the Spring Model have overcome [5] the difficulties encountered in treating sharp or imperfect contact interfaces by means of the usual Finite Difference (FD) techniques.