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can someone help me with this sample lab report? I didn't do so well with a similar one in the semester. what I'm most confused
can someone help me with this sample lab report? I didn't do so well with a similar one in the semester. what I'm most confused about is number 5 and 7.
Bending Lab guidelines: 1. Follow the handout for the lab Objective 2. For the Theory, you can use the handout materials. Identify all of the terms in the equations.. Write in sentences as though you are explaining the theory to someone Write so that I will have the impression that you understand the theory. 3. Equipment: same as handout but add dial gages and stationary micrometers 4. Procedure: describe what we did 5. Data and results: (remember that neatness is part of the exercise as well as organization, etc. You should think as though you are a consultant handing in a report (i.e you want the client to be impressed with your work and give you more work!) a. Include the dimensions of the bar. b. Include a tablc of the dcflection data from the lab. c. Include the calculated maximum stress on the beam for the three load values. d. Include the calculation of E for each load value based upon strain data. e. Include the predicted deflections based on the conjugate beam method. Hint: use the value for E that you get from the 150 -lb load in your conjugate beam deflection calculations. In your discussion below, tell me why you think I'm advising you to do this. 6. Charts, Tables, Graphs: not really applicable because the results of your calculations will be shown above There are no graphs or curves required for this report. 7. Sample calculations: This will be the most important section of the report a. Calculate the moment of inertia for the bar. b. Show one calculation for beam stress and EUse the 1501b data point. Calculate E based on strains for the other load points, but only show the results in your tables. c. Show a conjugate beam calculation for the three deflection points for the 150-lb load. Use E calculated in Step b. The handout shows the calc for the 450-lb load, and you can use this as a guide. However, I want to see the calculation for the 150 -lb load. Include sketches of the free body diagrams you use to compute your moment areas. Remember that neatness is part of the grade. d. Show the deflections for the 300lb and 450-lb loads as multiples of the 150lb calculation. e. Recalculate E using your conjugate beam equations and the average observed deflections for each load case and deflection location ( 9 total). Show onc cxample in your sample calculations and tabulate the results of all calculations. f. Your sample calculations should be hand-written. Please make them neat and readable so I can follow your analyses. Summarize your data and all calculations in a spreadsheet. Discussion and Conclusions: Discuss the differences between the observed deflection data and the calculated deflections. Why would there be such variation in the values of E? uno ENCE 2311 Mech Mat Labla 1 Folsel Experiment objective Theory max=Imc,E=m Equarpine t Scott Buann Testerj Strain indicatar, ruler Procedure - Going to tuke the A numencal techmique Data avenses Fonjugate Bearn method 1. For a sumple span, the conjught? bearn is the same as, the real hew. 2. Load the con ingate beam. with the 11/EI diagramy from the neal beam 3. shears in the conjugate beam correspond to rotations Bending Lab guidelines: 1. Follow the handout for the lab Objective 2. For the Theory, you can use the handout materials. Identify all of the terms in the equations.. Write in sentences as though you are explaining the theory to someone Write so that I will have the impression that you understand the theory. 3. Equipment: same as handout but add dial gages and stationary micrometers 4. Procedure: describe what we did 5. Data and results: (remember that neatness is part of the exercise as well as organization, etc. You should think as though you are a consultant handing in a report (i.e you want the client to be impressed with your work and give you more work!) a. Include the dimensions of the bar. b. Include a tablc of the dcflection data from the lab. c. Include the calculated maximum stress on the beam for the three load values. d. Include the calculation of E for each load value based upon strain data. e. Include the predicted deflections based on the conjugate beam method. Hint: use the value for E that you get from the 150 -lb load in your conjugate beam deflection calculations. In your discussion below, tell me why you think I'm advising you to do this. 6. Charts, Tables, Graphs: not really applicable because the results of your calculations will be shown above There are no graphs or curves required for this report. 7. Sample calculations: This will be the most important section of the report a. Calculate the moment of inertia for the bar. b. Show one calculation for beam stress and EUse the 1501b data point. Calculate E based on strains for the other load points, but only show the results in your tables. c. Show a conjugate beam calculation for the three deflection points for the 150-lb load. Use E calculated in Step b. The handout shows the calc for the 450-lb load, and you can use this as a guide. However, I want to see the calculation for the 150 -lb load. Include sketches of the free body diagrams you use to compute your moment areas. Remember that neatness is part of the grade. d. Show the deflections for the 300lb and 450-lb loads as multiples of the 150lb calculation. e. Recalculate E using your conjugate beam equations and the average observed deflections for each load case and deflection location ( 9 total). Show onc cxample in your sample calculations and tabulate the results of all calculations. f. Your sample calculations should be hand-written. Please make them neat and readable so I can follow your analyses. Summarize your data and all calculations in a spreadsheet. Discussion and Conclusions: Discuss the differences between the observed deflection data and the calculated deflections. Why would there be such variation in the values of E? uno ENCE 2311 Mech Mat Labla 1 Folsel Experiment objective Theory max=Imc,E=m Equarpine t Scott Buann Testerj Strain indicatar, ruler Procedure - Going to tuke the A numencal techmique Data avenses Fonjugate Bearn method 1. For a sumple span, the conjught? bearn is the same as, the real hew. 2. Load the con ingate beam. with the 11/EI diagramy from the neal beam 3. shears in the conjugate beam correspond to rotations
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