(Solved): Q2. A circular cross section bar \( A B \) with diameter \( d \) and length \( L \) has a cylindric ...

Q2. A circular cross section bar \( A B \) with diameter \( d \) and length \( L \) has a cylindrical hole of diameter \( \mathrm{d} / 2 \) over the length \( \mathrm{x} \) as shown in Figure Q2. The bar has rigid supports at \( A \) and \( B \) and is acted upon, at central point \( C \) by an axial force P. Take Young's modulus to be \( E \) and assume that \( x