고체역학 (Gere) — Axially Loaded Members: Problem 2.6-6

2.6-6 A steel bar with a diameter \(d = 12 \text{ mm}\) is subjected to a tensile load \(P = 9.5 \text{ kN}\) (see figure). (a) What is the maximum normal stress \(\sigma_{\text{max}}\) in the bar? (b) What is the maximum shear stress \(\tau_{\text{max}}\)? (c) Draw a stress element oriented at \(45^\circ\) to the axis of the bar and show all stresses acting on the faces of this element. (d) Repeat part (c) for a stress element oriented at \(22.5^\circ\) to the axis of the bar.