Review of the Energy Methods; strain and complementary energy, totalpotential energy, detailed application to deflection problems, application to staticallyindeterminate structures (Beams, Frames, Pin Jointed Trusses and Rings), using unitload and Castigliano's methods. Matrix method in structure analysis. Bending of thinshells, general case of deformation of cylindrical shells, buckling of shells under axialpressure, buckling of cylindrical shells subjected to torsion. Warping of thin-walledsections (open and closed) under shear and torsion loads.