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Fabrication and testing of short fibre-reinforced compositesPouliot, Denis, 1951- January 1978 (has links)
No description available.
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Fabrication and testing of short fibre-reinforced compositesPouliot, Denis, 1951- January 1978 (has links)
No description available.
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A scattered light photoelastic analysis of interlaminar matrix stresses in fibrous composite modelsAderholdt, Robert Wendell 12 1900 (has links)
No description available.
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Experimental setup and testing of fiber reinforced composite structuresBumpus, Scott Robert John. 10 April 2008 (has links)
No description available.
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Proposed test method for the flexural testing of fiber-reinforced polymeric bridge deck panelsArnette, John Benjamin 08 1900 (has links)
No description available.
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An investigation of the excitation frequency dependent behavior of fiber reinforced epoxy composites during vibrothermographic inspectionRussell, Samuel Stephen January 1982 (has links)
This investigation concerns the frequency related behavior of delaminations in fiber reinforced composites during vibrothermography, the use of active thermography with a mechanical excitation for the nondestructive evaluation of a structure or part. Two models, one where the size and geometry of the flaw control a local resonance and the other where the part or panel is undergoing structural resonance with the flaws dissipating the mechanical energy, are proposed for this frequency related behavior and tested on simulated and service produced delaminations in coupons, panels, and a machine part of complex geometry. The behavior predicted by the local resonance model is compared with experimental observations. The vibration state of the panels or coupons is determined during the vibrothermal tests, and compared with the frequencies which cause vibrothermographic heating of the flaws as a test of the structural resonance model.
The usefulness of vibrothermography is demonstrated in glass and graphite reinforced epoxy components. Impact damage sites are located in graphite epoxy panels using vibrothermography. The size of the damage is indicated not only by the size of the hot region but also by the temperature rise in the center of the flawed region. A glass epoxy machine part, which was damaged during service, was subjected to interrogation by ultrasonic C-scans, X-ray radiography, and then compared with the vibrothermographic NDE. / Ph. D.
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Failure criteria and acoustic emission as applied to composite materialsCampbell, I January 1992 (has links)
A dissertation submitted to the Faculty of Engineering, University of the Witwatersrand, Johannesburg, in fulfillment of the requirements for the degree of Master of science in
Engineering. Johannesburg, 1992. / This project involves the comparison of different failure criteria with experimental results for fibre composite materials, and investigates the usefulness of acoustic emission in composite testing. Three sets of specimens were tested to failure in tension. The specimens had various ply orientations and were tested using acoustic emission to determine ply failures. Carbon and glass fibre reinforced epoxy pre-impregnated specimens were used. The testing machine was an ESH testing machine, and a physical Acoustics corporation computer and data acquisition unit were used to record data from a piezo-electric sensor. Suitable failure criteria should be chosen on the basis of ply orientation and material type (eg fibre stiffness), a combination of criteria being used if necessary. Acoustic emission was successfully used to detect ply failure in multi-layered laminates. / AC2017
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Comparison of static and dynamic test methods for determining the stiffness properties of graphite/epoxy laminatesTurner, Michael Derryck January 1979 (has links)
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1979. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND AERONAUTICS. / Includes bibliographical references. / by Michael Derryck Turner. / M.S.
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The manufacture, characterization and aging of novel high temperature carbon fibre compositesFox, Bronwyn Louise. January 2001 (has links)
No description available.
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Effects of damage and viscoelasticity on the constitutive behavior of fiber reinforced compositesKumar, Rajesh S. 05 1900 (has links)
No description available.
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