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Practical approaches for evaluating bending and torsion of fiber-reinforced polymer components using instrumented testing

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Author(s): Isaac L. Howard

Journal: Journal of Applied Science and Engineering Technology
ISSN 1939-8565

Volume: 2;
Start page: 24;
Date: 2008;
Original page

Keywords: Bridge decks | Fiber reinforced polymers | Instrumented testing | Shear deflection

ABSTRACT
This paper discusses instrumented testing of Fiber Reinforced Polymer (FRP) materials for constructinglightweight bridge decks. Torsion and bending tests are performed on multi-cellular components to evaluate the torsional constant (polar moment of inertiaof the section), influence of simultaneous loadingson elastic properties, and the effect of shear forces on the total deflection. A practical approach is taken in the absence of extensive theoretical computations.The methods employed performed well and are a combination of instrumented testing and fundamental mechanics principles.
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