A simply supported beam of length 4 m carries a central point load of 20 kN. The cross-section is rectangular (width = 80 mm, depth = 150 mm). Compute the maximum bending stress.
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Hearn’s treatment of 2D and 3D stress is legendary. The includes graphical Mohr’s circle constructions alongside analytical solutions, helping students cross-verify their work. A simply supported beam of length 4 m
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Axial stress: σ = P/A = (50×10³) / (3.1416×10⁻⁴) = 1.5915×10⁸ Pa = .