Question

For a body undergoing plane strain conditions, which of the following is true? The out-of-plane normal stress is zero a. b. The in-plane strain is zero c. The in-plane stress is zero d. The out-of-plane stress is zero e. The out-of-plane shear stress is zero

Answer 1

for a body undergoing Plane strain condition

b) the in-plane strain is zero.

In plane strain the deformation or strain in z-direction is prevented by putting some restriction in z-direction ( imagine a rod between two immovable walls subjected to heating and thermal strain is prevented). In this case, though there is no strain in z-direction some stress will be there.