The strength of materials is a branch of applied mechanics that deals with the behavior of solid bodies subjected to various types of loading. Other names for this field of study are mechanics of materials and mechanics of deformable bodies. The principal objective of mechanics of materials is to determine the stresses, strains, and displacements in structures and their components due to the loads acting on them. If we can find these quantities for all values of the loads up to the loads that cause failure, we will have a complete picture of the mechanical behavior of these structures. An understanding of mechanical behavior is essential for the safe design of all types of structures, whether airplanes and antennas, buildings and bridges, machines and motors, or ships and spacecraft. That is why mechanics of materials is a basic subject in so many engineering fields.

The objectives of this course: understand the concept of stress and strain, understand basic material properties, the relation of stress to strain, normal stress-strain diagrams and Hooke’s Law, lateral strain and Poisson’s ratio, understand the relationship between shear strain and shear stress, compute stresses and strains in axially loaded member, compute stresses and strains due to thermal effects, compute stresses on inclined planes in members subject to axial loading, compute angular deformation and stresses in rods and shafts subject to torque, compute deformations and stresses in power transmission shafts, compute shear forces in beams subject to various loading types, compute bending moments in beams subject to various loading types, derive and apply local equilibrium equations to beams, draw shear force and bending moment diagrams, compute deformations and bending stresses in beams.