Question

what is volumetric stress and planer stress? ( explain what are tensor quantities).

Answer 1

Volume stress: When stress is applied on the body from all the directions, it is called volumetric stress.
Plane stress: when stress vector is zero about the particular surface, this is called stress vector.
It is represented by tensor quantity.
it can be represented by 2×2 and 3×3 matrix .

Tensor are the geometric objects, they are used to describe the relations between the vectors and scalars in the form of matrices.