Location

Snowmass Village, CO

Start Date

1-1-1995 12:00 AM

Description

Conventional ultrasonic inspection methods such as pulse-echo and through transmission measurements can be insensitive to inter-laminar cracks within carbon-fiber/epoxy composite materials. Alternative inspection methods, designed to be sensitive to defects of this orientation, are therefore being sought. Most of these methods rely on the generation and detection of resonant modes (sometimes called generalized Lamb waves) in composite laminates, whereby careful choice of particular modes can lead to sensitivity to defects of interest, such as delaminations, weak bonding or thin layers of residual materials [1]. Work on bonded metal plates has also highlighted the value of resonant techniques in detecting bond-line delaminations [2].

Volume

14B

Chapter

Chapter 5: Engineered Materials

Section

Composite Properties

Pages

1249-1256

DOI

10.1007/978-1-4615-1987-4_159

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Horizontally Polarised Shear Wave Resonances in Carbon-Fiber/Epoxy Composites

Snowmass Village, CO

Conventional ultrasonic inspection methods such as pulse-echo and through transmission measurements can be insensitive to inter-laminar cracks within carbon-fiber/epoxy composite materials. Alternative inspection methods, designed to be sensitive to defects of this orientation, are therefore being sought. Most of these methods rely on the generation and detection of resonant modes (sometimes called generalized Lamb waves) in composite laminates, whereby careful choice of particular modes can lead to sensitivity to defects of interest, such as delaminations, weak bonding or thin layers of residual materials [1]. Work on bonded metal plates has also highlighted the value of resonant techniques in detecting bond-line delaminations [2].