For the angle shape and loading of Sample Prob. 6.6, (a) determine the points where the shearing stress is maximum and the corresponding values of the stress, (b) verify that the points obtained are located on the neutral axis corresponding to the given loading.
Sample Problem 6.6
Determine the distribution of shearing stresses in the thin-walled angle shape DE of uniform thickness t for the loading shown.
STRATEGY: Locate the centroid of the cross section and determine the two principal moments of inertia. Resolve the load P into components parallel to the principal axes, equal to the shear forces. The two sets of shearing stresses are then calculated at locations along the two angle legs. These are then superposed to obtain the shearing stress distribution.