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Determination of Bending Moment in Beam

By: Haseeb Jamal / On: May 02, 2017 / Experiments, Lab-Notes, How To


model beam, weights, deflection gauge, hangers.


The purpose of this experiment is to record the deflection in beam experimentally and then compare it with theoretical value.


  • Take a beam model and place it on a table in such away that it should be horizontal and firm.

  • Record the length and cross section.

  • Set the deflection gauge at a point where the deflection is to be measured.

  • Bring deflection gauges value to zero before the application of load on the bar.

  • Now apply load with the help of weight hangers

  • Record loaded weight its location from left side of the beam.

  • Record deflection when first of all the smaller dial has rotated.

  • Each division of main dial is 0.01mm

  • Also record deflection at any other point record location of that point and value.

Find the moment by = ML2 / 12 ET


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