The strains measured on the surface of a piece of sheet metal after deformation are ,-0.182, 2 -0.035. The stress-strain curve in tension can be approximated by -30+408. Assume the Von Mises criterion and assume that the loading was such that the ratio ofe/e, was constant. Calculate the levels ofo, and 2 reached before unloading

Q1) a) Define nano-materials. Explain types, properties and various application of nano materials. [6] What are different strengthening mechanisms for materials. [4]