Analysis Of Poeuler Beam Experiment

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The overall objective of this lab was to verify Bernoulli-Euler beam theory for the lip-loaded cantilever and use that to calculate the Poisson ratio for the material in this case 6061-T6 aluminum. This was done by having to different objectives for each part of the Lab. Part one was use electrical resistance strain gage, this was to measure the strain a cantilever beam as it undergoes a known deflection. We would then compare the measurements with that of the strains predicted by simple beam theory [1]. The objective for part two was to use two electrical resistance strain gages on the cantilevered beam to measure and calculate the Poisson ratio of the beam. There were several tools need to complete this experiment [1]. First being a strain gauge, which is used to measure average strain over its gage length. The aluminum beam with axial strain gage and another with axial and transverse strain gauges, which allows us to measure the strain the beam is experience. Also flexure frame which hold aluminum beam which uses a micrometer to apply a …show more content…
There were two different parts to this experiment. Part one, utilized a single electrical resistance strain gage in order to measure strains that prove simple Bernoulli-Euler beam theory [1]. Part two, was to use two electrical resistance strain gages which are mounted to the cantilever beam in order to measure the Poisson ratio for the material [1]. We would then use the data collected to calculate the Poisson ratio and compare it to that of 6061-T6 aluminum, along with the uncertainty of the Poisson ratio calculation. We were also able to develop graph, in which related the tip displacement and strain gage output. Before beginning the lab it is important to make sure that we calibrate the strain gages to make sure that were are getting realistic calibrated

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