Mechanical Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 1 (Q.No. 7)
7.
A body is subjected to a tensile stress of 1200 MPa on one plane and another tensile stress of 600 MPa on a plane at right angles to the former. It is also subjected to a shear stress of 400 MPa on the same planes. The maximum normal stress will be
400 MPa
500 MPa
900 MPa
1400 MPa
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
57 comments Page 4 of 6.

Mithlesh said:   10 years ago
Its due to normal stress formula.

Pradeep yadav said:   10 years ago
@Suresh you have any formula for normal stress in this manner.

Nabin said:   1 decade ago
LET

T.S1=1200 and T. S2=600 and S.S=400 normal stress = T.S1+T.S2-S.S.

Then 1200+600-400 = 1400. So maximum normal stress = 1400 Mpa.

Shahrukh ansari said:   1 decade ago
Max. normal stress is equal to max. principal stress.

Mona said:   1 decade ago
I need the solution urgently need. Can you please solve again?

Harish said:   1 decade ago
Can you solve this sum again clearly?

Heny man said:   1 decade ago
Can you proof it again clearly?

Suresh said:   1 decade ago
The maximum stress = x+y-z.

= 1400+600-200.

Saravanakumar said:   1 decade ago
Normal stress are the average stress in X and Y direction.

At particular plane that means angle of rotation the Normal stress will be maximum that plane/stress is called principle plane/stress.

Vaibhav said:   1 decade ago
Max normal stress = Principle stress.


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