Strength of Materials

At the end of this course, the students should be able to: 1. recognise a structural system that is stable and in equilibrium; 2. determine the stress-strain relation for single and composite members based on Hooke's law; 3. estimate the stresses and strains in single and composite members due to temperature changes; 4. evaluate the distribution of shear forces and bending moments in beams with distributed and concentrated loads; 5. determine bending stresses and their use in identifying slopes and deflections in beams; 6. use Mohr's circle to evaluate the normal and shear stresses in a multi-dimensional stress system and transformation of these stresses into strains; 7. evaluate the stresses and strains due to torsion on circular members; and 8. determine the buckling loads of columns under various fixity conditions at the ends.

Consideration of equilibrium; composite members, stress-strain relation. Generalised Hooke's law. Stresses and strains due to loading and temperature changes. Torsion of circular members. Shear force, bending moments and bending stresses in beams with symmetrical and combined loadings. Stress and strain transformation equations and Mohr’s circle. Elastic buckling of columns.