UNIT – IV
UNSYMETRICAL BENDING: INTRODUCTION –
CENTROIDAL PRINCIPAL AXES OF SECTION
– GRAPHICAL METHOD FOR LOCATING PRINCIPAL
AXES – MOMENTS OF INERTIA REFERRED
TO ANY SET OF RECTANGULAR AXES – STRESSES
IN BEAMS SUBJECTED TO
UNSYMMETRICAL BENDING – PRINCIPAL AXES –
RESOLUTION OF BENDING MOMENT
INTO TWO RECTANGULAR AXES THROUGH THE
CENTROID – LOCATION OF NEUTRAL AXIS –
DEFLECTION OF BEAMS UNDER UNSYMMETRICAL
BENDING.
SHEAR CENTRE: INTRODUCTION – SHEAR CENTRE
FOR SYMMETRICAL AND UNSYMMETRICAL
(CHANNEL, I, T AND L) SECTIONS