As Pascal is a small quantity, in practice, multiples of this unit is used.
It usually represents the displacement between particles in the body relative to a reference length.į is expressed in Newton (N) and A, original area, in square meters (m 2), the stress σ will be expresses in N/ m 2. Strain: It is the deformation produced in the material due to simple stress. The internal resistance force per unit area acting on a material is called the stress at a point. Stress: When a material in subjected to an external force, a resisting force is set up within the component.
