Answer Happy

Q1. The cross-section for a beam is illustrated in Figure Q1, i) What is the location for the Centroid; [8 marks] ii) What is the second moment of area for this cross-section; [8 marks] iii) If the max direct stress (bending-induced) in the beam is limited to 150N/mm² and the bending moment applied onto this beam is 145 kNm, is the beam still safe? [4 marks] [20 marks] 200 mm 20 mm T 15 mm 300 mm I T 20 mm 100 mm Figure Q1