Real-time ultrasonic and acoustic emission monitoring of damage in graphite/epoxy laminates

Shi Chang Wooh; Isaac M. Daniel; Heoung Jae Chun

doi:10.1016/0961-9526(95)00063-S

Real-time ultrasonic and acoustic emission monitoring of damage in graphite/epoxy laminates

Shi Chang Wooh^*, Isaac M. Daniel, Heoung Jae Chun

^*Corresponding author for this work

Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Progressive failure of a crossply composite laminate under uniaxial tension was characterized by correlating ultrasonic and acoustic emission measurements with damage in real time. Both ultrasonic backscattered energy and acoustic emission gave consistent results and proved to be sensitive indicators of matrix cracking and other failure mechanisms. The acoustic emission signals were analyzed by investigating the amplitude and count frequency and the corresponding applied strain. Loading/unloading tests showed that no additional damage occurs upon reloading up to the previous peak load.

Original language	English (US)
Pages (from-to)	1403-1412
Number of pages	10
Journal	Composites Engineering
Volume	5
Issue number	12
DOIs	https://doi.org/10.1016/0961-9526(95)00063-S
State	Published - 1995

Funding

Acknowledgements--This work was sponsored by the Air Force Office of Scientific Research (AFOSR). The authors are grateful to Dr Walter F. Jones of AFOSR for his encouragement and cooperation, and to Mrs Yolande Mallian for typing the manuscript.

ASJC Scopus subject areas

General Engineering

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10.1016/0961-9526(95)00063-S

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title = "Real-time ultrasonic and acoustic emission monitoring of damage in graphite/epoxy laminates",

abstract = "Progressive failure of a crossply composite laminate under uniaxial tension was characterized by correlating ultrasonic and acoustic emission measurements with damage in real time. Both ultrasonic backscattered energy and acoustic emission gave consistent results and proved to be sensitive indicators of matrix cracking and other failure mechanisms. The acoustic emission signals were analyzed by investigating the amplitude and count frequency and the corresponding applied strain. Loading/unloading tests showed that no additional damage occurs upon reloading up to the previous peak load.",

author = "Wooh, {Shi Chang} and Daniel, {Isaac M.} and Chun, {Heoung Jae}",

note = "Funding Information: Acknowledgements--This work was sponsored by the Air Force Office of Scientific Research (AFOSR). The authors are grateful to Dr Walter F. Jones of AFOSR for his encouragement and cooperation, and to Mrs Yolande Mallian for typing the manuscript.",

year = "1995",

doi = "10.1016/0961-9526(95)00063-S",

language = "English (US)",

volume = "5",

pages = "1403--1412",

journal = "Composites Engineering",

issn = "0961-9526",

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T1 - Real-time ultrasonic and acoustic emission monitoring of damage in graphite/epoxy laminates

AU - Wooh, Shi Chang

AU - Daniel, Isaac M.

AU - Chun, Heoung Jae

N1 - Funding Information: Acknowledgements--This work was sponsored by the Air Force Office of Scientific Research (AFOSR). The authors are grateful to Dr Walter F. Jones of AFOSR for his encouragement and cooperation, and to Mrs Yolande Mallian for typing the manuscript.

PY - 1995

Y1 - 1995

N2 - Progressive failure of a crossply composite laminate under uniaxial tension was characterized by correlating ultrasonic and acoustic emission measurements with damage in real time. Both ultrasonic backscattered energy and acoustic emission gave consistent results and proved to be sensitive indicators of matrix cracking and other failure mechanisms. The acoustic emission signals were analyzed by investigating the amplitude and count frequency and the corresponding applied strain. Loading/unloading tests showed that no additional damage occurs upon reloading up to the previous peak load.

AB - Progressive failure of a crossply composite laminate under uniaxial tension was characterized by correlating ultrasonic and acoustic emission measurements with damage in real time. Both ultrasonic backscattered energy and acoustic emission gave consistent results and proved to be sensitive indicators of matrix cracking and other failure mechanisms. The acoustic emission signals were analyzed by investigating the amplitude and count frequency and the corresponding applied strain. Loading/unloading tests showed that no additional damage occurs upon reloading up to the previous peak load.

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JO - Composites Engineering

JF - Composites Engineering

IS - 12

ER -

Real-time ultrasonic and acoustic emission monitoring of damage in graphite/epoxy laminates

Abstract

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ASJC Scopus subject areas

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