i have a case study on a crankshaft. i have completed the service requirements but i have no idea about what i am supposed to do for the material requirements. the question is: Discuss and identify the material requirements for the component by relating the material property requirements to the service requirements identified in your answer to service requirements? could someone please explain this question to me. do i have to talk about which materials have to be used or what the materials properties have to be or both?