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Chapter 12: Stress Transformations
M12.17: Principal Stresses Using Mohr's Circle
Tangent of Angle 2θ
p
Principal Stresses Using Mohr's Circle
Principal Stresses at a Point
Determine σ
p1
Determine σ
p2
Determine Orientation of Principal Planes
Angle from the x Face to Principal Plane P
1
Tangent of Angle 2θ
p
Relate 2θ
p
on Mohr's Circle to θ
p
in x-y Coordinates
scene
7
of
8
The tangent of the angle
2θ
p
can be computed from the geometry of the circle.
