고체역학 (Gere) — Axially Loaded Members: Problem 2.3-18

2.3-18 A flat brass bar has length L, constant thickness t, and a rectangular cross section whose width varies linearly between \(b_2\) at the fixed support to \(b_1\) at the free end (see figure). Assume that the taper of the bar is small. The bar has modulus of elasticity E. Calculate the displacements \(\delta_B\) and \(\delta_C\) if \(P = 200\text{ kN}\), \(L = 2\text{ m}\), \(t = 20\text{ mm}\), \(b_1 = 100\text{ mm}\), \(b_2 = 115\text{ mm}\), and \(E = 96\text{ GPa}\).