A beam with the cross-section given below is subjected to

A beam with the cross-section given below is subjected to a positive bending moment (causing compression at the top) of 16 kN^–m acting around the horizontal axis. The tensile

	M	=	f	=	E
	I		y		R

f =	m.y
	I

f(at 25 mm) =	m	× 25
	I

=	16 × 10⁶	× 25
	(1/12) × 100 × 150³

= 14.22 N/mm²
Force in shaded area
= (1/2) × 14.22 × (area of shaded portion)
= (1/2) × 14.22 × 25 × 50 = 8.9kN