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Calculate the force required to punch a hole 30 mm diameter in a sheet of 3mm thickness given that the shear stress is 60 X 107 N/m. (Hint the area to be cut is the circumference of the hole X thickness). |
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Answer» As in punching, SHEAR elasticity' is involved, the hole will be PUNCHED it ULTIMATE shear stress min > = = 200 KN Explanation: follow now |
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