Question

why poisons ratio cannot exceed 0.5??show that if poisons ratio is 0.5 then change in volume becomes 0.​

Answer 1

Answer:

Ay u = 0.5 there is no volume change (incompressible); if it were greater than 0.5 volume would decrease which is unlikely. If it is 0, there is no lateral contraction and volume increases. If less than 0 the object will actually expand laterally rather than contract, and some special materials do this

Answer 2

Answer:

Explanation:

Each side normal to the stretch direction contracts by an amount equal to poisson ratio x the stretch. Ay u = 0.5 there is no volume change (incompressible); if it were greater than 0.5 volume would decrease which is unlikely. If it is 0, there is no lateral contraction and volume increases.