Shear Stress due to Bending Read sec 311

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Shear Stress due to Bending(Read sec 3-11)

• Whenever there will
• be a shear stress due to bending at yy1

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Other shapes

• Circular CS shape shear stress due to bending is
  on radial planes maximum occurs at neutral axis
• See Table 3-2 p. 95 for other symmetric shapes (
  at N.A. for all these)
• Good reference - Roarks Formulas for Stress and
  Strain, McGraw-Hill, NY, 6th Ed., 1989.

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Two last notes

• Direction of shear stress is same as resultant
  shear force reaction on the corresponding CS face
• It is usually small in comparison to normal
  stress from bending except for small aspect ratio
  (short-squat) beams