Question
The beam has a square cross section and is made of wood having an allowable shear stress of $\tau_{\text {allow }}=1.4 \mathrm{ksi}$. If it is subjected to a shear of $V=1.5$ kip, determine the smallest dimension $a$ of its sides.
Step 1
The moment of inertia for a square cross section is given by the formula $I = \frac{1}{12}a^4$. Show more…
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