Strength of Materials

SALIENT POINTS

• When a beam is subjected to a loading system or by a force couple acting on a plane passing through the axis, then the beam deforms. The deformation is called as bending of a beam.
• In a loaded cantilever beam, the upper fibres will be tensioned and lower fibres will be compressed.
• In a loaded simply supported beam, the lower fibres will be tensioned and the upper fibres are compressed.
• When a loaded beam is unaccompanied by shear force and subjected only to a constant bending moment, then the beam is said to be in a state of simple bending.
• When a beam is loaded longitudinally, stresses are induced in its cross section.
• The equation which connects radius of curvature of the beam, bending stresses, bending moment and its cross-sectional ...