Straintest - Drexel University Goodwin College of...

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Drexel University Goodwin College of Professional Studies Applied Engineering Technology MET 101 Manufacturing Material Laboratory Experiment No. 2 Submitted by Mike Coover Submitted to Dr. Richard Y Chiou Date: February 13, 2007
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Purpose: The experiment of Strain Gage Testing with Coke Cans involves the determination of the pressure in a factory scaled carbonated can. We obtain this pressure by measuring the circumferential or axial strain in the coke can with a strain gage. (Note: we did not re-pressurize the can using water. One student in our experimental group re-pressurized the can by blowing into the can and the strain was then measured.) Description/Data: To accumulate the theory of shear strain testing in which structural deformation in response to loads that do not distort, but length changes only, can be quantified in terms of relative length changes of extensional strain. With the coke can, the shear strain is zero and two extensional strains are present; the axial strain and the circumferential strain. Shear strain is a measure of the changes in right angles of extremely small lines as the body deforms. To obtain this experiment, we first had to set up the strain gage on the coke can in the
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This note was uploaded on 04/08/2008 for the course HIST 1 taught by Professor W during the Spring '08 term at Drexel.

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Straintest - Drexel University Goodwin College of...

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