Lecture Notes

Chapter	Week	Subject
Introduction- Concept of Stress	1	Equilibrium of a deformable body, average normal and shear stress, bearing stress, allowable stress, factor of safety, deformation.
Stress and Strain - Axial Loading	2	Normal and shear strain, the tension test, Hooke’s law, Poisson’s ratio.
Stress and Strain - Axial Loading	3	Elastic deformation of an axially loaded members, principle of superposition, statically indeterminate axially loaded member, thermal stress.
Torsion	4	The torsion formula, power transmission.
Torsion	5	Statically indeterminate torque-loaded members, torsion of non-circular shafts.
Pure Bending	6	Shear and moment diagrams, the flexure formula.
Pure Bending	7	Bending of composite beams, stress concentrations, eccentric axial loading, un-symmetric bending.
Shearing Stress in Beams and Thin-Walled Members.	8	The shear formula, shear stresses in beams, shear flow in built-up members.
Transformation of Stress and Strain	9	Plane stress transformation, general equations of plane stress transformation.
	10	Mohr’s circle.
	11	Plane strain, Mohr’s circle, failure criteria.
Principal Stresses Under a Given Loading	12	State of stress caused by combined loading.
Deflection of Beams	13	The elastic curve, slope and displacement by integration method.
Energy Methods	14	Strain energy, strain energy density, strain energy for normal stress, shearing stress and general state of stress, work and energy under single and several loads, Castigliano’s theorem.

ME202