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Electromechanical study of carbon fiber composites

Published online by Cambridge University Press:  31 January 2011

Xiaojun Wang
Affiliation:
Composite Materials Research Laboratory, State University of New York at Buffalo, Buffalo, New York 14260–4400
Xuli Fu
Affiliation:
Composite Materials Research Laboratory, State University of New York at Buffalo, Buffalo, New York 14260–4400
D. D. L. Chung
Affiliation:
Composite Materials Research Laboratory, State University of New York at Buffalo, Buffalo, New York 14260–4400
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Abstract

Electromechanical testing involving simultaneous electrical and mechanical measurements under load was used to study the fiber-matrix interface, the fiber residual compressive stress, and the degree of marcelling (fiber waviness) in carbon fiber composites. The interface study involved single fiber pull-out testing while the fiber-matrix contact electrical resistivity was measured. The residual stress study involved measuring the electrical resistance of a single fiber embedded in the matrix while the fiber was subjected to tension through its exposed ends. The marcelling study involved measuring the electrical resistance of a composite in the through-thickness direction while tension within the elastic regime was applied in the fiber direction.

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Articles
Copyright
Copyright © Materials Research Society 1998

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