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Unformatted text preview: Test (i) 600 Specimen (ii) 800 gauge b gauge a Gauge c Gauge d Gauge f 500 600 400 300 200 100 400 200 0 0 200 100 200 400 0 5 1 0 1 5 0 5 1 0 1 5 Load (kN) Load (kN) b) The graphs above show the strain readings plotted vs. applied load for the two tests. Using the information contained in the graphs calculate all the engineering elastic constants that you can obtain. If there are any elastic constants that you cannot obtain/estimate from this data suggest additional tests that you might perform in order to obtain them. In describing the elastic constants use x, y and z to indicate the orthogonal material directions, with x aligned parallel to the fibers. c) Estimate the fiber volume fraction for this composite, given that the Young’s modulus of SiC is 450 GPa, and the Poisson’s ratio is 0.16 and the corresponding values for the titanium alloy used for a matrix are 110 GPa and 0.34 respectively. Is this consistent with the data provided?...
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 Fall '05
 MarkDrela
 Tensile strength, Gas turbine, Silicon carbide, elastic constants

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