Lab six - Chase Machemehl October 18, 2007 Mrs. JoAnn...

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Chase Machemehl October 18, 2007 Mrs. JoAnn Scales Section 10, Thursday 1-4pm Materials Science and Engineering Vanderbilt University Nashville, TN 37235 Bolted Joints Dear Mrs. Scales, The following report details the results of the lab experiment performed Thursday October 11 th , 2007. The purpose of the experiment is to demonstrate and analyze different failures associated with bolt patterns. Students analyzed three different types of failure: bearing, shear, and tensile. Bearing failure consists of the bolts ripping through the member, like a slice of cheese hanging on a nail. Shear failure occurs when the bolt breaks due to shear stress. Tensile failure occurs when the member fractures (usually along the bolt pattern) due to tensile stress. In order to facilitate these failures, students examined three different connections, though all were butt joints. Two samples had two holes and bolts; they were differentiated by bolt and hole diameters. A Third sample had three holes and bolts with a similar diameter to one of the other samples. Students first estimated the failure loads of the samples based on hypothesized
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This lab report was uploaded on 04/07/2008 for the course MSE 232 taught by Professor Wittig during the Spring '08 term at Vanderbilt.

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Lab six - Chase Machemehl October 18, 2007 Mrs. JoAnn...

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