Consider a metal single crystal oriented such that the norma…

Consider a metal single crystal oriented such that the normal to the slip plane and the slip direction are at angles of 60° and 35°, respectively, with the tensile axis. If the critical resolved shear stress is 7 MPa, will an applied stress of 13 MPa cause the single crystal to yield? If not, what stress will be necessary?

An unidentified material has a yield strength of 75 MPa with…

An unidentified material has a yield strength of 75 MPa with an average grain diameter of 6.25×10-2 mm. At a yield strength of 175 MPa, the same material has an average grain diameter of 6.94×10-3mm. Calculate the yield strength when the average grain diameter is 1.0×10-3 mm.