lab4 - Introduction The purpose of this experiment was to...

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Unformatted text preview: Introduction The purpose of this experiment was to compare the mechanical properties of metals, ceramics, polymers, and composites. Also, to demonstrate the effect of temperature on the toughness of body centered cubic and face centered cubic metals. The lab was also meant to demonstrate how to perform stress and strain experiments on various samples. Procedure Measure the dimensions and mass of each sample using the digital scale and the calipers or Archimedes method and enter into the database. Calculate the density, volume, force, and stress of each sample using excel spreadsheet. Determine the UTS and percent elongation of each sample and enter into the spreadsheet. Perform a Tensile Test using an Instron testing machine in order to find the UTS and elongation. Measure the final length of the sample and calculate the strain. Perform a biaxial flexure test using the Instron testing machine to find the UTS of the composite samples. Next, do Charpy impact test on the samples at different temperatures to determine the effect of temperature on toughness. Be sure to wear safety goggles during all testings. Results Table I: UTS Mean, Standard Deviation, and Percent Elongation Material Data Base UTS Mean Experimental UTS Mean Data Base UTS Standard Deviation Experimental Percent Elongation Data Base Percent Elongation 1018 Steel 470 505.59 21 28.18 1040 Steel 916 881.13 103 11.21 2024 Aluminum...
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This lab report was uploaded on 04/07/2008 for the course MSE 150 taught by Professor Wittig during the Spring '07 term at Vanderbilt.

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lab4 - Introduction The purpose of this experiment was to...

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