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Nondestructive Characterization of Fiber-Matrix Adhesion in Composites by Vibration Damping

Published online by Cambridge University Press:  15 February 2011

Weiqun Gu ,
Guo-Quan Lu ,
H. Felix Wu ,
Stephen L. Kampe ,
P. Ross Lichtenstein  and
David W. Dwight
Weiqun Gu
Affiliation:
Department of Materials Science and Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
Guo-Quan Lu
Affiliation:
Department of Materials Science and Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
H. Felix Wu
Affiliation:
Composistes Innovation Owens-Corning Science and Technology Center, Granville, OH 43023
Stephen L. Kampe
Affiliation:
Department of Materials Science and Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
P. Ross Lichtenstein
Affiliation:
Composistes Innovation Owens-Corning Science and Technology Center, Granville, OH 43023
David W. Dwight
Affiliation:
Composistes Innovation Owens-Corning Science and Technology Center, Granville, OH 43023
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Abstract

Adhesion at fiber-matrix interface in fiber-reinforced composites plays an important role in controlling the mechanical properties and overall performance of composites. Among the many available tests applicable to the composite interfaces, vibration damping technique has the advantages of being nondestructive as well as highly sensitive. We set up an optical system to measure the damping tangent delta of a cantilever beam, and correlated the damping data in glass-fiber reinforced epoxy-resin composites with transverse tensile strength which is also a qualitative measurement of adhesion at fiber-matrix interface. Four different composite systems containing three different glass-fiber surface treatments were tested and compared. Our experimental results showed an inverse relationship between damping contributed by the interface and composite transverse tensile strength.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 385: Symposium N – Polymer/Inorganic Interfaces II , 1995 , 33
Copyright
Copyright © Materials Research Society 1995

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References

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