MSE 150L Lab 4 Report

MSE 150L Lab 4 Report - Travis Owen Section 1 Page 1...

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The main objectives of this lab were to compare the mechanical properties of metals, ceramics, polymers, and composites and 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 samples. Experimental Procedure The first part of the lab is to measure the mass and volume of each specimen meant to be tested using the digital scale for mass and the calipers or Archimedes method for the volume. Then the cylindrical specimens are tested using the Instron Testing machine to stretch the samples while measuring engineering stress and strain. The disk shaped specimens are tested in the Instron Testing machine by fracturing the specimens using ball on disk testing. Then samples of the metals are tested for toughness using the Charpy impact test at low temperatures and at room temperature. Results Table I: UTS Mean/STD 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 470.34 511.5327381 14.96 26.7 29 1040 Steel 916.17 852.5399785 84.32 8.9 14 2024 Aluminum 513.79 15121 16.22 11.1 20 High Density
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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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MSE 150L Lab 4 Report - Travis Owen Section 1 Page 1...

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