A bar 2 m long and 20 mm diameter is subjected to an axial pull of 125.6 KN. Due to this load, length increases by 4 mm and diameter reduce by 0.012 mm. Find Poison?s ratio.

Question

Quizplus · Accepted Answer

Poisson's ratio is calculated as the negative ratio of lateral strain to axial strain. Axial strain = increase in length/original length = 4 mm / 2000 mm = 0.002. Lateral strain = decrease in diameter/original diameter = 0.012 mm / 20 mm = 0.0006. Poisson's ratio = - (lateral strain / axial strain) = - (0.0006 / 0.002) = 0.3.

A Bar 2 M Long and 20 Mm Diameter Is