ENGR 220 Section 9'4

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ENGR 220Section 9.4
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General Equations for Plane Stress Transformations
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Re-arranging
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Squaring and adding
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Mohrs Circle
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Mohrs Circle
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Determine the principal stresses and the maximum
in plane shear stress.
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Draw Mohrs circle that describes each of these
states.
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Exercise 9.57
Determine the Stress components acting on the
plane AB using Mohrs circle.
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To determine correct sign for state of stress
at a point See Example 8.5 page 448