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Principal planes are subjected to

This question belongs to Civil Engineering Theory Of Structures
Theory of Structures
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Principal planes are subjected to

Answer & Solution
Correct Answer: Option A
Principal planes are special planes within a stressed body.
They are unique because at these specific planes, something very important happens:
There are NO shear stresses acting.
This means that the only stresses present on a principal plane are normal stresses (also called direct stresses), which act perpendicular to the plane.
Therefore, the correct answer is that principal planes are subjected to normal stresses only.
The other options are incorrect because shear stress is absent on principal planes.
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8 Comments
Sumon Hossain
Sumon Hossain 2 years ago
A principal plane is a plane where only normal stress acts and shear stress is zero. The converse is also true: if the shear stress on a plane is zero, then that plane is a principal plane.
Girishkumar Gange
Girishkumar Gange 5 years ago
Yes, Correct✅
Girishkumar Gange
Girishkumar Gange 5 years ago
Correct
OMER Mushtaq
OMER Mushtaq 5 years ago
tangential stresses are infect shear stresses and on principle planes shear stresses are zero and normal stresses might have some value.
Reddy Chotu
Reddy Chotu 6 years ago
Can u explain how it's?
Reddy Chotu
Reddy Chotu 6 years ago
Can u explain how it's?
Fahad Hasan
Fahad Hasan 6 years ago
The plane on which normal stress attains its maximum and minimum value.” So these planes are also called as major principal plane and minor principal plane. The shear stress on principal plane is zero.
Annareddy Kikkuru
Annareddy Kikkuru 6 years ago
Why options A explain
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