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In case of a horizontal beam loaded under bending, the point of inflexion or contra flexure corresponds to a point on the beam, where

In case of a horizontal beam loaded under bending, the point of inflexion or contra flexure corresponds to a point on the beam, where Correct Answer Bending moment changes its sign

Concept:

Point of contraflexture

  • It is the point where bending moment changes its sign i.e., from positive value to a negative value or vice versa.
  • At point of contraflexture the value of bending moment is zero.
  • Point of contraflexture may exist in beam depending on the loading conditions, sometimes it won't exist.
  • Sometimes it may exist two or more times. It's not necessary that it exists in every beam.

 

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