Characterization of Fiber-Matrix Interface Degradation in a Metal Matrix Compositte

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1995
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Mal, Ajit
Yang, Ruey-Bin
Yang, Jenn-Ming
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Review of Progress in Quantitative Nondestructive Evaluation
Center for Nondestructive Evaluation

Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.

This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.

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The fracture and failure of fiber-reinforced composites are known to be strongly influenced by the properties of the fiber-matrix interface zone. Since these properties may be altered during processing, or may suffer degradation during service, the quality control of interface zones through nondestructive evaluation techniques is highly desirable. The overall properties of fiber-reinforced composites are related to their microstructure. In particular, the velocity of the average waves that can be transmitted in these materials depends on the elastic moduli and the densities of the constituents as well as the properties of the fiber-matrix interface. Thus, the interface conditions can, in principle, be determined from the measurement and analysis of wavespeeds in these materials. However, in practice, this is not a straightforward exercise due to the fact that the relationship between the overall and microstructural properties of a composite are in general nonlinear and thus may lead to an amplification of measurement errors. It is nevertheless extremely important to develop the capability to monitor the integrity of the fiber-matrix interface, especially in high temperature applications where the composites must operate in harsh environments.

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Sun Jan 01 00:00:00 UTC 1995