Mechanical Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 1 (Q.No. 24)
24.
When a rectangular beam is loaded transversely, the maximum compressive stress is developed on the
top layer
bottom layer
neutral axis
every cross-section
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
74 comments Page 1 of 8.

Nikhil said:   4 years ago
If the beam is simply supported then maximum compressive stress will be at top layer and if it is cantilever beam then maximum compressive stress will act at the bottom layer.
(6)

MUHAMMAD NABI said:   2 years ago
Simple.

When load is applied on a beam.

Upper zone = compressive zone.
Lower zone = tensile zone.

Now,

Stress = resisting force per unit area.

So reverse the above phenomena.

Upper zone = tensile stresses.
Lower zone = compressive stresses.

So the given answer is correct.
(4)

Aleem Nasar said:   1 year ago
The given answer is right. Because compressive stress (not load or force) will produce in the bottom layer to resist the action of tensile forces or load develop in the bottom layer.
(3)

Atanu said:   3 years ago
Top layer is the correct answer.
(3)

Nagato said:   3 years ago
You're right. @Subhendu.

When a body is compressed under the action of a force, the restoring force per unit area is known as the compression stress.

So, the Compressive stress is maxed at the bottom layer of the compression zone in a beam i.e. compression is min where compression stress in max.

Similarly, the Tensile stress is max at the top layer of tension zone i.e tension is a min at the top layer in tension zone due to max tensile stress.
(2)

Ajaymedidhi said:   3 years ago
Transverse load acts perpendicular to the axis of beam.
(1)

Vinay BEL said:   3 years ago
Top layer is the correct answer.
(1)

Ravikumar said:   7 years ago
Transverse load means load which is perpendicular to the neutral axis.

Avinash said:   5 years ago
Transversely means axially loading.

Ramesh said:   6 years ago
@Navaj.

If so, why there is compressive stress at the bottom in case of cantilever beam?


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