Total Marks: 10 Date.......... ID... Student Name...... Question: The figure shows a punch which makes holes in aluminum plates. Take the punch diameter as 19 mm to punch a hole in a 6-mm plate, as shown in the cross-sectional view (see figure (b)). If a force P =125 kN is required, a) what is the average shear stress in the plate? b) The average compressive stress in the punch? c) Comment on the type of stress. IP d (a) (6)
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