Types of Stress
Types of Stress 1. Tensile stress ( σ ) When the component is subjected to two equal pulls, the component tend to elongate due to the external force. The stress induced in the material is known as tensile stress. L is the original length of the component δ L is the change in length of the component Strain When the component is subjected to two equal pulls or push, the component tend to elongate or shorten respectively, due to the external force. Then the ratio of change in length to the original length is known as stain stain ( ɛ) = δ L/ L Stain has no units (Unitless) 2. Compressive stress ( σ ) When the component is subjected to two equal push, the component tend to shorten due to the external force. The stress induced in the material is known as compressive stress. 3. Shear stress ( τ ) When forces are transmitted from one part of a body to other, the stresses developed in a plane parallel to the applied force are the shear stress. Shear stress acts parall