# maximum tensile and compressive stresses

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Two vertical forces are applied to a beam of the cross section shown. Determine the maximum tensile and compressive stresses in portion BC of the beam.

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Given:

Find: Determine the maximum tensile and compressive stresses in portion BC of the beam.

Solution:

For this problem, we have a beam in pure bending where the neutral axis passes through the centroid of the cross section, so we can use the following formula:

(1)

where σm is the maximum absolute value of stress, M is the couple moment, c is the distance from the neutral surface, and Ix' is the moment of inertia of the cross section with respect to a centroidal axis (x axis in ...

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