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 2 of 6.

Afrooj said:   7 years ago
Thanks for all for the explanation.

Manikanta said:   7 years ago
Plane at which max normal stress & minimum normal stress present is called as principal plane. So, maximum principal stress is same as the maximum normal stress.
(1)

Hareshkumar said:   7 years ago
The resultant tensile stress is (1200+600)/2 =900 MPA shear stress =400 Mpa using maximum normal stress theory 1/2(900+ 900^2+4 * 400^2) = 1400Mpa.

Rishu said:   8 years ago
Thanks.

Ram prasad said:   8 years ago
Thanks for the given explanation.

Rakesh patra said:   8 years ago
Principle stress are maximum or minimum normal stress which may be developed on a loaded body.

L3FA said:   8 years ago
Thanks for the given explanations.

Sachin pravin patil said:   8 years ago
The resultant tensile stress is (1200+600)/2 =900 MPA shear stress =400 Mpa using maximum normal stress theory 1/2(900+ 900^2+4 * 400^2)= 1400Mpa.

Vijay said:   8 years ago
Thank you @Yajat Sharma.

Patil Pramod said:   8 years ago
Thanks for all the above answers.


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