Question

Determine principle stresses and principle stress directions

Answer 1

For the three-dimensional case, it is now demonstrated that three planes of zero shear stress exist, that these planes are mutually perpendicular, and that on these planes the normal stresses have maximum or minimum values. As has been discussed, these normal stresses are referred to as principal stresses, usually denoted s 1, s 2, and s 3. The algebraically largest stress is represented by s 1, and the smallest by s 3: s 1 > s 2 > s3...

Answer 2

Principal Stresses. It is defined as the normal stress calculated at an angle when shear stress is considered as zero. ... The maximum value of normal stress is known as major principal stress and minimum value of normal stress is known as minor principal stress.

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