CE231lab - Experiment # 3 Title: Compression Testing of...

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Experiment # 3 Title: Compression Testing of Metals Name: Matthew Lingam Division #: 8 Date: 2/16/10 TA’s name: Chaitaya Synopsis : During this experiment two small samples, in the shape of a cylinder, of metal were placed onto the compression machine. One of these metals was 1020 HR steel and the other was pure aluminum. On these samples of metal there were strain gauges, two on the horizontal axis, and two on the vertical axis so as to get an average of the two. To get the strain, a total of 10,000 lbs was applied to the steel in increments of 1000 lbs and the aluminum had a total of 8,000 lbs. The Young’s Modulus of the steel was 28.715 psi and of the aluminum it was 10.495 psi. The Poisson’s Ratio for the steel was 0.2818 and the aluminum was 0.3275. The stiffness of the steel is 22.552 and the stiffness of the aluminum is 8.2431.
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Objectives : The objective of this lab was to apply compression test to different metals so that a better understanding of the elasticity of metals could be developed. This is important to discover to determine the elasticity of a metal so as to determine how it will be used in buildings. Another objective of this lab was to help determine Young’s Modulus which is the relationship between the axial strain and the axial stress. Determining Poisson’s ratio was another objective to this lab, and this is the relationship between the axial stress and the transverse strain. Introduction
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CE231lab - Experiment # 3 Title: Compression Testing of...

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