(Problem 1.1 from the text book) Two solid cylindrical rods AB and BC are welded together at B and loaded as shown. Knowing that d, = 30 mm and d, = 50 mm, find the average normal stress at the midsection of (a) rod AB, (b) rod BC. 125 N 60 KN 125 LN 0.9 m 12 m

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