Location

Brunswick, ME

Start Date

1-1-1997 12:00 AM

Description

Layered media is used extensively in the aerospace and automotive industries from paint on metal surfaces to actuators with piezoelectric layers. NDE of such materials is used for manufacturing quality control or damage inspection. A method of inversion for thickness and wavespeeds from ultrasonic data using the minimization of the difference between measured and constructed transfer function magnitudes in transmission has been developed [1,2]. Using this method, for a three-layer metal/liquid/metal specimen immersed in water it is possible to invert accurately for up to four parameters, for example, three thicknesses and one wavespeed. Kinra, Wang, Zhu, and Rawal [3] reported thickness measurements on three-layer metal-clad specimens.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

16B

Chapter

Chapter 6: Material Properties

Section

Materials Characterization

Pages

1415-1421

DOI

10.1007/978-1-4615-5947-4_183

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Simultaneous Inversion of Six Parameters for Three-Layered Metal Specimens

Brunswick, ME

Layered media is used extensively in the aerospace and automotive industries from paint on metal surfaces to actuators with piezoelectric layers. NDE of such materials is used for manufacturing quality control or damage inspection. A method of inversion for thickness and wavespeeds from ultrasonic data using the minimization of the difference between measured and constructed transfer function magnitudes in transmission has been developed [1,2]. Using this method, for a three-layer metal/liquid/metal specimen immersed in water it is possible to invert accurately for up to four parameters, for example, three thicknesses and one wavespeed. Kinra, Wang, Zhu, and Rawal [3] reported thickness measurements on three-layer metal-clad specimens.