Mechanical Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 1 (Q.No. 15)
15.
When a body is subjected to two equal and opposite pushes, as a result of which the body tends to reduce its length, the stress and strain induced is compressive.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
29 comments Page 1 of 3.

Kesav said:   8 years ago
My answer is B.

When the body is subjected to two equal and opposite pushes (push is generally compressive in nature) then force is compressive which leads to tensile stress at both ends. As force is compressive there is a decrease in cross section of the body which means compressive strain but stress is tensile.

Anantha Padmanaban said:   9 years ago
If the compressive stress (Pushed equally on both side) applied on the axis of a rectangular bar of length L, there is a reduced deflection in length L. According to the Question "the stress and strain induced is compressive or not". So due to compressive stress the length is reduce so the answer is 'true".

Kamal said:   1 decade ago
The answer should be option B, because as a result of pushes the body tends to reduce its length which means the applied forces are compressive in nature, now we know the stress is internal resisting force, therefore the resisting force will be tensile in nature i.e., stress and strain induced are tensile.

Devendra said:   6 years ago
When a body is subjected to equal and opposite pushes (compressive force) as a result tensile stress will induce inside the body which will try to increase the length.

Hence, stress and strain-induced would be tensile.
(2)

NJamadagni said:   1 decade ago
If the question had stated linear strain, then then the answer is true. If there is a compressive stress, then there will be a Linear compressive strain and Lateral tensile strain.

So, the answer is false.

Akshay said:   1 decade ago
Stress is the internal force applied by the body to oppose the applied force. So if force is compressive stress should be tensile.

And strain of course will be compressive.

So correct answer is false.

Vipin said:   1 decade ago
We push that body. The length of the body is deceased. So that body try to become its original length. So creating stress is oppose that push. It is called tensile stress.

Shadab said:   6 years ago
Simply when force is pull in a given figure then the stress is considered as tensile so when the force is push here same conditions applied.

So answer is A.
(1)

Jamshid khan said:   1 decade ago
When the body is subjected pushing forces on both side having equal and opposite direction, so the stress produces in the body will be Tensile stress.

Shubham sachan said:   9 years ago
When a body is being pushed then the arrived stresses should be tensile. But the answer is given compressive. HOW IS IT POSSIBLE IF ANS IS TRUE?


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