CIVL $304$

Kaufman

Problem $2$:

Given:

A $14$ mm diameter rod of an experimental plastic is subjected to a tensile force of magnitude $P=4\mathrm{.}2$ kN $.$

Req'd:

Knowing that the elongation is $7$ mm over a $150$ mm gage length and there is a decrease in diameter of $0\mathrm{.}4$ mm $,$ determine the modulus of elasticity, Poisson's ratio and the modulus of rigidity $($shear modulus$)$ for the material.

Solution: