Quiz_3_Solution__MSE_220

MSE 220 Fall 2019 - Quiz 3 October 17, 2019 Name: ________Solution__________________________ Discussion Honor Pledge (write out): ______________________________________________________________________________ ______________________________________________________________________________ Signature: ________________________________ 2 1. (4 pts) Are the direction and plane given below a valid slip system? Explain your answer. Include in your explanation the definition of a slip system. This combination of direction and plane are not a valid slip system. A valid slip system must be a direction that lies on a plane. A slip system is a crystallographic plane, and, within that plane, a direction along which dislocation motion, or slip, occurs. 2. (4 pts) A brittle material has a fracture toughness of 15 MPa√