A sample of material is placed into a friction less rigid ca

A sample of material is placed into a friction less, rigid cavity with a snug fit. A uniform pressure is applied, (a) What is the stress state of the material? (b) What happens as v approaches 1/2?

the stress will be uniform

and if poisons ratio reaches by 1/2 then the material has the ability to resist and move in anisotropic directions.