Introduction, axial loading and normal stress, stress on an inclined plane, shearing stress. General state of stress and stress components, Maximum allowable stress, Stress-strain relationship, elastic and plastic behavior of metals, Modulus of Elasticity, Poisson`s ratio. Saint-Venant`s principle. Plane stress and transformation equations, transformation equations for plane strain. Mohr`s circle, Generalized Hook`s Law, thermal effects, torsion, stress concentration, stresses in thin-walled pressure vessels, bending in straight beams, deflection, statically indeterminate problems, Castigliano's theorem, buckling in columns, failure theories.