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

Department of Mechanical Engineering

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

2 Citations (Scopus)

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
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
Publication status	Published - 1995

Bibliographical 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.

All Science Journal Classification (ASJC) codes

Engineering(all)

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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",

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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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ER -

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

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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