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A beam of uniform rectangular cross - section is under a transverse load. The stress along the neutral axis of central cross - section is

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BPSC AE Paper 4 (General Engineering Science) 10 Nov 2022 Official Paper
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  1. only bending stress
  2. maximum bending stress and minimum shearing stress
  3. maximum shearing stress only
  4. bending stress and shearing stress

Answer (Detailed Solution Below)

Option 3 : maximum shearing stress only
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Detailed Solution

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Explanation:

  • Bending Stress:

    • Varies linearly across the depth of the beam.

    • Zero at the neutral axis, maximum at the top and bottom fibers.

  • Shear Stress:

    • Parabolically distributed over the cross-section.

    • Maximum at the neutral axis.

    • Zero at the top and bottom fibers.

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