Location

La Jolla, CA

Start Date

1-1-1993 12:00 AM

Description

With the increased use of new high strength materials such as fiber-reinforced composites, the need for NDE methods is obvious, especially in industries such as the aerospace industry. The particular defect studied here (debonding of fiber from the matrix) is particularly important as it is often the earliest sign of fatigue damage in fiber-reinforced laminates [9]. Having an ability to detect such damage is clearly necessary and the application of ultrasound may provide a cheap and rapid method of detection. This paper presents two theoretical models of the effect of debonds on ultrasonic backscattering, and compares them with the experimental results from scale models of a single debonded fiber.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

12B

Chapter

Chapter 5: Engineered Materials

Section

Composite Defects

Pages

1361-1367

DOI

10.1007/978-1-4615-2848-7_173

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Effect of Debonding in Fiber-Reinforced Compsites on Ultrasonic Backscattering

La Jolla, CA

With the increased use of new high strength materials such as fiber-reinforced composites, the need for NDE methods is obvious, especially in industries such as the aerospace industry. The particular defect studied here (debonding of fiber from the matrix) is particularly important as it is often the earliest sign of fatigue damage in fiber-reinforced laminates [9]. Having an ability to detect such damage is clearly necessary and the application of ultrasound may provide a cheap and rapid method of detection. This paper presents two theoretical models of the effect of debonds on ultrasonic backscattering, and compares them with the experimental results from scale models of a single debonded fiber.