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Monitoring cure of composite resins using frequency dependent electromagnetic sensing techniquesA nondestructive in situ measurement technique has been developed for monitoring and measuring the cure processing properties of composite resins. Frequency dependent electromagnetic sensors (FDEMS) were used to directly measure resin viscosity during cure. The effects of the cure cycle and resin aging on the viscosity during cure were investigated using the sensor. Viscosity measurements obtained using the sensor are compared with the viscosities calculated by the Loos-Springer cure process model. Good overall agreement was obtained except for the aged resin samples.
Document ID
19890043206
Document Type
Conference Paper
Authors
Kranbuehl, D. E. (College of William and Mary Williamsburg, VA, United States)
Hoff, M. S. (College of William and Mary Williamsburg, VA, United States)
Loos, A. C. (Virginia Polytechnic Institute and State University Blacksburg, United States)
Freeman, W. T., Jr. (NASA Langley Research Center Hampton, VA, United States)
Eichinger, D. A. (College of William and Mary Williamsburg, VA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1988
Subject Category
Quality Assurance And Reliability
Accession Number
89A30577
Funding Number(s)
CONTRACT_GRANT: NAG1-237
CONTRACT_GRANT: NAG1-343
Distribution Limits
Public
Copyright
Other

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