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Units and Dimensions

The 'plane se...

Question

The 'plane section remains plane' assumption in bending theory implies.

A

strain profile is linear

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B

stress profile is linear

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C

both strain and stress profiles are linear

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D

shear deformations are neglected

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Solution

The correct option is A strain profile is linear
Plane section remains plane after bending assumption in bending theory implies that strain profile is linear.

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Similar questions

Q. The 'plane section remains plane' assumption in bending theory implies.

Q. The basic assumption of plane section normal to the axis of beam before bending remains plane after bending, implies that

Q. In a R.C. section under flexure, the assumption that "a plane section before bending remains plane after bending" leads to

Q. Match List-I with List-II and select answer using the the codes given below the lists :
List-I
A. Assumption in the theory of simple bending
B. The point at which the bending stress is maximum for any cross-section
C. The point at which the bending stress is zero for any cross-section
D. The point in the cross section through which the neutral axis passes

List - II
1. Neutral axis
2. Centroid
3. The plane sections remain plane
4. Extreme fibre
5. The cross-section is circular

Code:
A B C D

Q. Consider the following statement for a beam based on theory of bending:
1. Strain developed in any fibre is directly proportional to the distance of fibre from neutral surface.
2. For flexural loading and linearly elastic action the neutral axis passes through the centroid of cross-section.
3. The assumption of the plane cross-section remaining plane will not hold good during inelastic action.
4. Instances in which the neutral axis does not pass through the centroid of a cross-section include a homogenous symmetrical beam (with respect to axis) and subjected to inelastic action.

Which of these statements are correct ?

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