고체역학 (Beer) — Shearing Stresses in Beams: Problem 6.28

6.25 through 6.28 A beam having the cross section shown is subjected to a vertical shear V. Determine (a) the horizontal line along which the shearing stress is maximum, (b) the constant k in the following expression for the maximum shearing stress \[ \tau_{max} = k \frac{V}{A} \] where A is the cross-sectional area of the beam. (Fig. P6.28 is an inverted triangle with base b at the top and height h).