Location

La Jolla, CA

Start Date

1-1-1991 12:00 AM

Description

Ultrasonic inspection of thick composites has been plagued by many problems such as the high degree of anisotropy and difficulties in achieving sufficient signal penetration. The dependency of wave speed to propagation direction causes beam skewing and excess beam divergence in certain directions, leading in turn to distortion of beam profile. Consequently, the beam distortion generates false indication of size and location of a flaw. This distortion of the beam in thick composites depends on several factors such as fiber layout of the material, size and frequency of the transducer used, etc.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

10B

Chapter

Chapter 6: Engineered Materials

Section

"Thick" Composites

Pages

1647-1654

DOI

10.1007/978-1-4615-3742-7_66

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Model-Based Iterative Flaw Sizing for Thick Composites

La Jolla, CA

Ultrasonic inspection of thick composites has been plagued by many problems such as the high degree of anisotropy and difficulties in achieving sufficient signal penetration. The dependency of wave speed to propagation direction causes beam skewing and excess beam divergence in certain directions, leading in turn to distortion of beam profile. Consequently, the beam distortion generates false indication of size and location of a flaw. This distortion of the beam in thick composites depends on several factors such as fiber layout of the material, size and frequency of the transducer used, etc.