고체역학 (Beer) — Shearing Stresses in Beams: Problem 6.10

6.9 through 6.12 For the beam and loading shown, consider section n–n and determine (a) the largest shearing stress in that section, (b) the shearing stress at point a. For problem 6.10: - A cantilever beam is fixed at the left support and carries a vertical downward load of $125\text{ kN}$ at its free end. - The total length of the beam is $600\text{ mm}$. - Section $n-n$ is located at a distance of $450\text{ mm}$ from the fixed support. - The cross-section is an I-beam with a flange width of $192\text{ mm}$ and a total height of $216\text{ mm}$ ($3 \times 72\text{ mm}$). - All portions of the cross-section (flanges and web) have a uniform thickness of $t = 6\text{ mm}$. - Point $a$ is located in the web at a distance of $72\text{ mm}$ from the top edge of the beam.