A simply supported beam of width 100 mm, height 200 mm and

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A simply supported beam of width 100 mm, height 200 mm and length 4 m is carrying a uniformly distributed load of intensity 10 kNm. The maximum bending stress (in MPa) in the beam is _________

1. 32 MPa
2. 30 MPa
3. 31 MPa
4. 29MPa

Correct Option: B

For 0.01 maximum
Bending moment, M_max

M_max =	WI²
	8

and from bending equation:-

σ_max =	6M_max	=	6 × 10 × (4)² × 1000
	bd²		8(0.1) × (.2)²

σ_max = 30 MPa