A bar carries an axial load of 120 kN over a cross-sectional area of 1000 mm². The direct stress is

Average direct (axial) stress sigma = P/A, where P = axial force and A = cross-sectional area. Assumes the load acts through the centroid and stress is uniform across the section (valid far from the load application point, per Saint-Venant's principle). Units: N/mm^2 (MPa). Stress = P/A = 120000/1000 = 120 N/mm².

ScoreCardAI links this solution with subject, topic and difficulty signals so your scorecard can identify weak areas after a full mock test.