고체역학 (Gere) — Axially Loaded Members: Problem 2.5-26

2.5-26 A plastic cylinder is held snugly between a rigid plate and a foundation by two steel bolts (see figure). Determine the compressive stress \(\sigma_P\) in the plastic when the nuts on the steel bolts are tightened by one complete turn. Data for the assembly are as follows: length \(L = 200\text{ mm}\), pitch of the bolt threads \(p = 1.0\text{ mm}\), modulus of elasticity for steel \(E_s = 200\text{ GPa}\), modulus of elasticity for the plastic \(E_P = 7.5\text{ GPa}\), cross-sectional area of one bolt \(A_s = 36.0\text{ mm}^2\), and cross-sectional area of the plastic cylinder \(A_P = 960\text{ mm}^2\).