Self-monitoring carbon-fiber polymer-matrix composites

Xiaojun Wang; Deborah D. Chung

doi:10.1117/12.232147

Self-monitoring carbon-fiber polymer-matrix composites

Xiaojun Wang
, Deborah D. Chung

Department of Mechanical and Aerospace Engineering

SUNY Buffalo

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

Real-time monitoring of fatigue damage and dynamic strain in a continuous unidirectional carbon fiber polymer-matrix composite by longitudinal electrical resistance measurement was achieved. The resistance R decreased reversibly upon tensile loading in every cycle, thus providing dynamic strain monitoring. The peak R in a cycle irreversibly increased as fatigue damage occurred, due to fiber breakage. At 55% of the fatigue life, the peak R started to increase in spurts. At 89% of the fatigue life, the peak R started to increase continuously from cycle to cycle, but gradually. At 99.9% of the fatigue life, the peak R started to increase rapidly, both continuously and in spurts. The last spurt occurred at 99.997% of the fatigue life.

Original language	English
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
Publisher	Society of Photo-Optical Instrumentation Engineers
Pages	259-266
Number of pages	8
Volume	2716
ISBN (Print)	0819420913, 9780819420916
DOIs	https://doi.org/10.1117/12.232147
State	Published - 1996
Event	Smart Materials Technologies and Biomimetics - San Diego, CA, USA Duration: Feb 26 1996 → Mar 2 1996

Conference

Conference	Smart Materials Technologies and Biomimetics
City	San Diego, CA, USA
Period	02/26/96 → 03/2/96

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@inproceedings{00b0f22aa06e49a1b05a70c59f43482b,

title = "Self-monitoring carbon-fiber polymer-matrix composites",

abstract = "Real-time monitoring of fatigue damage and dynamic strain in a continuous unidirectional carbon fiber polymer-matrix composite by longitudinal electrical resistance measurement was achieved. The resistance R decreased reversibly upon tensile loading in every cycle, thus providing dynamic strain monitoring. The peak R in a cycle irreversibly increased as fatigue damage occurred, due to fiber breakage. At 55\% of the fatigue life, the peak R started to increase in spurts. At 89\% of the fatigue life, the peak R started to increase continuously from cycle to cycle, but gradually. At 99.9\% of the fatigue life, the peak R started to increase rapidly, both continuously and in spurts. The last spurt occurred at 99.997\% of the fatigue life.",

author = "Xiaojun Wang and Chung, \{Deborah D.\}",

year = "1996",

doi = "10.1117/12.232147",

language = "English",

isbn = "0819420913",

volume = "2716",

pages = "259--266",

booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "Society of Photo-Optical Instrumentation Engineers",

note = "Smart Materials Technologies and Biomimetics ; Conference date: 26-02-1996 Through 02-03-1996",

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T1 - Self-monitoring carbon-fiber polymer-matrix composites

AU - Wang, Xiaojun

AU - Chung, Deborah D.

PY - 1996

Y1 - 1996

N2 - Real-time monitoring of fatigue damage and dynamic strain in a continuous unidirectional carbon fiber polymer-matrix composite by longitudinal electrical resistance measurement was achieved. The resistance R decreased reversibly upon tensile loading in every cycle, thus providing dynamic strain monitoring. The peak R in a cycle irreversibly increased as fatigue damage occurred, due to fiber breakage. At 55% of the fatigue life, the peak R started to increase in spurts. At 89% of the fatigue life, the peak R started to increase continuously from cycle to cycle, but gradually. At 99.9% of the fatigue life, the peak R started to increase rapidly, both continuously and in spurts. The last spurt occurred at 99.997% of the fatigue life.

AB - Real-time monitoring of fatigue damage and dynamic strain in a continuous unidirectional carbon fiber polymer-matrix composite by longitudinal electrical resistance measurement was achieved. The resistance R decreased reversibly upon tensile loading in every cycle, thus providing dynamic strain monitoring. The peak R in a cycle irreversibly increased as fatigue damage occurred, due to fiber breakage. At 55% of the fatigue life, the peak R started to increase in spurts. At 89% of the fatigue life, the peak R started to increase continuously from cycle to cycle, but gradually. At 99.9% of the fatigue life, the peak R started to increase rapidly, both continuously and in spurts. The last spurt occurred at 99.997% of the fatigue life.

UR - https://www.scopus.com/pages/publications/0029695289

U2 - 10.1117/12.232147

DO - 10.1117/12.232147

M3 - Conference contribution

AN - SCOPUS:0029695289

SN - 0819420913

SN - 9780819420916

VL - 2716

SP - 259

EP - 266

BT - Proceedings of SPIE - The International Society for Optical Engineering

PB - Society of Photo-Optical Instrumentation Engineers

T2 - Smart Materials Technologies and Biomimetics

Y2 - 26 February 1996 through 2 March 1996

ER -

Self-monitoring carbon-fiber polymer-matrix composites

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