A body is loaded elastically so that strain in y-direction (ey) = 0 and σz = 0. Take σx and σy as finite. What is the value of strain in z-direction (ez) in terms of stress in x-direction (σx), Young's Modulus (E), and Poisson's ratio (v)?
1
ez = σxv(1 + 2v)/E
2
ez = σxv(1 - 4v)/E
3
ez = σx(1 + v)/E
4
ez = -σxv(1 + v)/E