A drawing operation is to be performed on a perfectly plastic material with strength coefficient- 100 MPa and strain hardening exponent-0. Neglect redundant strain. Die/work material friction coefficient=0 a)-What is the drawing stress? If this stress is a function of the area reduction, state so. b)-What is the strength of the material after drawing? If this strength is a function of the area 4. reduction, state so. c)-What is the maximum area reduction possible?

Afoot bridge is made as a simple deck, 4 m long, with a cross section 2 m (wide) and 20 cm thick, and made of wood. the deck is supported at the two ends. the maximum load allowable on the bridge is 10 tons, provided it is uniformly distributed on the deck. to sense this load, a strain gauge is placed at the center of the bridge and its resistance is monitored. if the sensor has a nominal resistance of 350 s2 and a gauge factor of 3.6, what is the reading of the strain gauge at maximum load? the modulus of elasticity for the wood used in the construction is 10 gpa.