Health monitoring method for composite materials
Abstract
An in-situ method for monitoring the health of a composite component utilizes a condition sensor made of electrically conductive particles dispersed in a polymeric matrix. The sensor is bonded or otherwise formed on the matrix surface of the composite material. Age-related shrinkage of the sensor matrix results in a decrease in the resistivity of the condition sensor. Correlation of measured sensor resistivity with data from aged specimens allows indirect determination of mechanical damage and remaining age of the composite component.
- Inventors:
-
- (Dahlonega, GA)
- Hampton, VA
- Issue Date:
- Research Org.:
- US Department of Energy (USDOE), Washington, DC (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1018216
- Patent Number(s):
- 7924031
- Application Number:
- 11/510,875
- Assignee:
- Watkins, Jr., Kenneth S. (Dahlonega, GA); Morris, Shelby J. (Hampton, VA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Watkins, Jr., Kenneth S., and Morris, Shelby J. Health monitoring method for composite materials. United States: N. p., 2011.
Web.
Watkins, Jr., Kenneth S., & Morris, Shelby J. Health monitoring method for composite materials. United States.
Watkins, Jr., Kenneth S., and Morris, Shelby J. Tue .
"Health monitoring method for composite materials". United States. https://www.osti.gov/servlets/purl/1018216.
@article{osti_1018216,
title = {Health monitoring method for composite materials},
author = {Watkins, Jr., Kenneth S. and Morris, Shelby J},
abstractNote = {An in-situ method for monitoring the health of a composite component utilizes a condition sensor made of electrically conductive particles dispersed in a polymeric matrix. The sensor is bonded or otherwise formed on the matrix surface of the composite material. Age-related shrinkage of the sensor matrix results in a decrease in the resistivity of the condition sensor. Correlation of measured sensor resistivity with data from aged specimens allows indirect determination of mechanical damage and remaining age of the composite component.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {4}
}
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