[ \sigma_max = \fracMcI ] where (c) = farthest distance from neutral axis.

Transform to a single material using modulus ratio (n = E_2/E_1).

[ \sigma = \fracMyI ]

Given: Simply supported beam with (L = 10) ft, (w = 200) lb/ft, rectangular cross-section (b = 2) in, (h = 6) in.