Physics · Mechanics of Solids
Which of the following is an INCORRECT relation based on the theory of pure bending? (Where M = Bending moment, I = Moment of inertia, σ = bending stress at distance 'y' from neutral axis, E = Young's Modulus, R = Radius of curvature, and Z = Section modulus)
- 1σ y = E R
- 2M = ZI✓
- 3σ = E y R
- 4M = E I R
Correct answer
M = ZI
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