(a) Explain the stress strain diagram for : (i) ductile materials (ii…
Previous year question for MECHANICS OF SOLIDS.
Question
(a) Explain the stress strain diagram for :
(i) ductile materials
(ii) brittle materials.
(b) Two parallel walls $6\text{ m}$ apart are stayed together by a steel rod of $25\text{ mm}$ diameter passing through metal plates and nuts at each end. The nuts are tightened when the rod is at a temperature of $100\text{ }^\circ\text{C}$. Determine the stress in the rod when the temperature falls down to $60\text{ }^\circ\text{C}$, if
(i) the ends do not yield
(ii) the ends yield by $1\text{ mm}$.
Take $E = 200\text{ GPa}$ and co-efficient of linear expansion $= 12 \times 10^{-6}/^\circ\text{C}$.
- Year: 2018
- Subject: MECHANICS OF SOLIDS