alleryStart learning →Principal planes are characterized by:
ANo special
BZero shear stress and maximum/minimum normal stress
CRandom
DMax shear
Answer & Solution
Correct answer: B. Zero shear stress and maximum/minimum normal stress
At principal planes, shear stress = 0. Normal stresses are max (σ_1) and min (σ_2).
Principal directions are orthogonal.
Algebraic eigenvalues/eigenvectors of stress tensor.
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