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Fiber Twist Test: A New Test Technique to Measure Composite Interface Properties

Published online by Cambridge University Press:  15 February 2011

William M. Chepolis  and
Turgay Ertürk
William M. Chepolis
Affiliation:
Dept. of Mechanical Engineering, College of Engineering, University of Massachusetts, Lowell MA 01854
Turgay Ertürk
Affiliation:
Dept. of Chemical and Nuclear Engineering, College of Engineering, University of Massachusetts, Lowell MA 01854
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Abstract

This paper discusses the work accomplished, thus far, in the development of the Fiber Twist Test (FTT) as an alternative and improved technique for testing the interface properties of continuous fiber composite materials. The unique features of the fiber twist test include the absence of Poisson effects during testing. This eliminates the nonlinear variation, with changing embedded fiber lengths, of fracture modes and accompanying debond energy, and of friction along the interface. Since the fiber is not removed from its surrounding matrix during testing, the interface area remains constant. This facilitates a more accurate measurement of friction properties at the interface.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 365: Symposium M – Ceramic Matrix Composites–Advanced High-Temperature Structural Materials , 1994 , 291
Copyright
Copyright © Materials Research Society 1995

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References

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