Mechanics of Elastic Solids lesson — Solid Mechanics Homework Answers 1 Solid Mechanics Homework Answers . Please show all of your work, including which equations you are using, and circle your final answer. Be sure to include the units in your answers. 1. The yield stress of steel is 250 MPa (250,000,000 Pa). A steel rod used for an implant in Engineers use the concepts and methods of mechanics of solids in designing and evaluating tools, machines, and structures, ranging from wrenches to cars to spacecraft. The required educational back-ground for these includes courses in statics, dynamics, mechanics of materials, and related subjects. For“An Introduction to the Mechanics of Solids” by S. H. Crandall, N.C. Dahl, and T. J. Lardner As the title explains, this book shows very basics of the solid mechanics. The book has a good coverage of the concepts of primary elements of mechanics, the three equations, some environmental effect, and examples of torsion, bending, and buckling.