Rigid and deformable solids; Method of sections for evaluating internal forces in bodies - review of free body diagrams; Concept of stress - normal and shear stresses; State of stress; Concept of strain - normal and shear strains; State of strain; Hookes law; Constitutive relations; Axially loaded members, force and deflections; Indeterminate systems and compatibility conditions; Simple indeterminate systems and lack of fit problems; Generalized Hookes law; Stress in cylindrical and spherical shells; Thin-Walled Pressure Vessels; Torsion of circular shafts - determinate and simple indeterminate systems. Elastic theory of bending of beams; Shear force and bending moment diagrams; Bending and shearing stresses in beams of symmetrical cross-section; Concept of shear flow and shear centre; Principle of superposition and its limitations. Transformation of plane stress and strain; Principal stresses and strains; Mohrs circle. Bending deflection of beams by direct integration method; Application of direct integration method to simple indeterminate systems. Elastic buckling of compression members.