The bolt is fixed to its support at C. If a force of 18 lb is applied to the wrench to tighten it, determine (a) the principal stresses and (b) the corresponding angle of rotation for the stress element. The determine (c) the max in-plane shear stress in the bolt shank at point
A
, and (d) the corresponding angle of rotation for the stress element. The shank has a diameter of 0.25 in. Solve using Mohr's circle(s) only. Enter the value for
\sigma _(1)
(the maximum principal stress) found in part (a) in the blank below. Report your answer in ksi to two decimal places.