Assumptions made in theory of Simple Bending

Assumptions made in theory of simple bending

Following are the assumptions made in theory of simply bending

  1. The material of the beam is perfectly homogeneous.
  2. The beam material is stressed within its elastic limit and thus obey’s Hooke’s law.
  3. The transverse sections which are plane before bending, remain plane after bending also.
  4. Each layer of the beam is free to expand or contract independently of the layer, above or below it.
  5. The value of Young’s modulus for the material of beam is same in tension and compression.