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{{Primary Structures}}
 
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Revision as of 06:59, 30 April 2015

The deflection of a beam under load may be measured using a dial gauge for example but may also be calculated.

The equation opposite gives Deflection (Δ) of a simply supported beam loaded in the centre.

WhiteSpace.jpg
BeamDeflectionLabelled.jpg

Where:

  • W = Load
  • L = Span
  • E = Young's Modulus ( - a measure of how stiff the materials is)
  • I = Moment of Inertia ( - a measure of the capacity of a cross section to resist bending)