Event Title

A General Purpose Approach to Calculating the Longitudinal and Flexural Modes of Multi-Layered, Embedded, Transversely Isotropic Cylinders

Location

Snowbird, UT, USA

Start Date

1-1-1999 12:00 AM

Description

Over a number of years, the authors have been developing a general purpose program for predicting the properties of guided elastic waves. In addition to the well known solutions such as Lamb modes, the program can model waves in complicated structures, including structures that are comprised of multiple layers, have flat or cylindrical geometries, and are immersed in a fluid or embedded in a solid. The methodology for the program, ‘Disperse’, which is based on a global matrix algorithm, has previously been presented at this meeting and elsewhere [1,2]. This paper presents the extension of the model to include transversely isotropic cylinders. Generality is pursued by allowing arbitrary numbers of layers, axially symmetric or non-axially-symmetric (nonzero circumferential order) modes, and free, immersed, or embedded structures.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

18A

Chapter

Chapter 1: Elastic Waves and Ultrasonic Techniques

Section

Guided Waves and Applications

Pages

239-246

DOI

10.1007/978-1-4615-4791-4_29

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

A General Purpose Approach to Calculating the Longitudinal and Flexural Modes of Multi-Layered, Embedded, Transversely Isotropic Cylinders

Snowbird, UT, USA

Over a number of years, the authors have been developing a general purpose program for predicting the properties of guided elastic waves. In addition to the well known solutions such as Lamb modes, the program can model waves in complicated structures, including structures that are comprised of multiple layers, have flat or cylindrical geometries, and are immersed in a fluid or embedded in a solid. The methodology for the program, ‘Disperse’, which is based on a global matrix algorithm, has previously been presented at this meeting and elsewhere [1,2]. This paper presents the extension of the model to include transversely isotropic cylinders. Generality is pursued by allowing arbitrary numbers of layers, axially symmetric or non-axially-symmetric (nonzero circumferential order) modes, and free, immersed, or embedded structures.