Location

Brunswick, ME

Start Date

1-1-1997 12:00 AM

Description

Ultrasonic materials characterization is widely used to assess both properties and defects of structural components. Recently, the option of gas- or air-coupled ultrasonic testing has become a realistic possibility. In this paper we develop the application of resonant sound transmission methods through ambient air in anisotropic materials with the sound wavevector oriented in a general direction in an anisotropic laminate. Establishing and demontrating the importance of voltage contributions from rays not contained in the incident plane, for sound propagation in a non-symmetry direction, is the major result of this paper.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

16B

Chapter

Chapter 6: Material Properties

Section

Materials Characterization

Pages

1375-1382

DOI

10.1007/978-1-4615-5947-4_178

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Anisotropic Materials Characterization Using Air-Coupled Ultrasound

Brunswick, ME

Ultrasonic materials characterization is widely used to assess both properties and defects of structural components. Recently, the option of gas- or air-coupled ultrasonic testing has become a realistic possibility. In this paper we develop the application of resonant sound transmission methods through ambient air in anisotropic materials with the sound wavevector oriented in a general direction in an anisotropic laminate. Establishing and demontrating the importance of voltage contributions from rays not contained in the incident plane, for sound propagation in a non-symmetry direction, is the major result of this paper.