Bendingbeam - Beam Bending: Wooden Dowel Alex Lin ME 2011...

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Unformatted text preview: Beam Bending: Wooden Dowel Alex Lin ME 2011 Oct 21, 2009 Introduction The elasticity of an object is important in designing the structure of an object. For instance a bridge needs to be ridged while an archers bow must be very elastic. In this experiment we will be finding the elasticity of an object in terms of the Youngs modulus using a three point flexural test. Method The object I studied was a wooden dowel. The exact material is unknown but it is most like made of a hardwood such as oak (What is a Wooden Dowel?). To execute the three point flexural test, I needed two supports. For these, I used two chairs of relatively same height. Then I used a Christmas tree stand to hold a yardstick up at the midpoint of the dowel. The dowel was held 33 inches apart by the supports. The suggested width was 26-28 inches but reasonable weights did not lower the beam to 2 inches. For the weights, I attached a rape with hooks on either end to the midpoint of the dowel. This is what I would attach weights onto. The weights used were: one 1 .25lbs, one 2.5lbs, one 5lbs, and one 10 what I would attach weights onto....
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This note was uploaded on 02/29/2012 for the course PHY 2218 taught by Professor Livingston during the Spring '12 term at University of Minnesota Crookston.

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Bendingbeam - Beam Bending: Wooden Dowel Alex Lin ME 2011...

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