Define stress, normal stress, shear stress, and pressure. Mass, Force, and Units
CH1-8: Define stress, normal stress, shear stress, and pressure. Mass, Force, and Units
Stress: It is defined as the force acting per unit area. Equation of stress:
Here, F is the force acting and A is the area of cross-section.
Force applied is acting in the normal direction to the cross section, then the stress is defined as normal force. If the force applied is acting in the tangential direction to the cross-section, then the corresponding stress is called shear stress.
Pressure: It is define as the force which is acted continuously on or against an object by which the force is in contact with it.