The basic assumption of plane sections normal to the neutral axis before bending, remaining plane and normal to the neutral axis after bending, leads to :

uniform stress over the cross section

uniform strain over the beam cross section

linearly varying strain over the cross section

stresses which are proportional to strains at all cross sections

The basic assumption of plane sections normal to the neutral axis befo

1.	The basic assumption of plane sections normal to the neutral axis before bending, remaining plane and normal to the neutral axis after bending, leads to :
A.	uniform strain over the beam cross section
B.	uniform stress over the cross section
C.	linearly varying strain over the cross section
D.	stresses which are proportional to strains at all cross sections
Answer» B. uniform stress over the cross section

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The basic assumption of plane sections normal to the neutral axis before bending, remaining plane and normal to the neutral axis after bending, leads to :

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