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Viewing stress results in non-symmetric beams

Question asked by Bryce Engle on May 3, 2011

If I have a beam that is not symmetric in the direction of loading, say a channel with the legs orientated parallel with the vertical axis(y), & a load acting on the beam parallel with the vertical axis; the maximum compressive & tensile stresses at the top & bottom of the beam will be different because the distance from the neutral axis to the edge of the channel (c1 & c2) is different.  How do I see the maximum bending stress at c1 & c2?  All the options I see in the stress plot are directions 1 & 2 which is not the same thing.  Which is it showing me, the closest or furthest from the neutral axis?  How do I see the other?

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