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Engineering Applications Mechanics TIM BARNETT SE32403 00361755 Log entry 1 Experiment 1 The experiment is to calculate the stress in a beam and compare these results with actual results found. The equipment used: - Strain gauge Metal bar Weights in 1kg increments G-clamp Weighted hook Vichy Strain Bridge The metal bar, complete with the weighted hook is clamped to the table, and then the strain gauge is connected to the strain bridge and zeroed. So as not to get any false readings. Weights are added in 1kg increments and readings are taken off the strain bridge. This tells us how much strain the bar is under as we load it up. Results are as follows Weight loaded Strain 1 kg 51 *10-6 2 kg 102 *10-6 3 kg 153 *10-6 4 kg 202 *10-6 5 kg 253 *10-6 As you can see the results go up uniform ally. Theory The following equations are used to calculate the final stress on the bar. Length of the bar 0.25M Width of the bar 0.04M Depth of the bar 0.006M Force = weight *...

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