What is Stress in Mechanical Engineering |Stress in Physics |Types of Stress in Engineering |Unit Of Stress, Symbol Of Stress in Engineering

-: Stress Definition, Types, Formula, Unit :-

 Stress

     It is defined as the capability to withstand an applied load or stress without structural failure. Mechanical Strength is also known as Stress, which is a resisting force that opposes the applied force to avoid structural failure of object.

Stress = Force /Area

Stress = F/A

Unit of Stress :-     N/m². 

Types of stress :-

1. Normal Stress 

           The a force is applied perpendicular to the axes of specimen or Object, a resisting force developed to prevent deformation, this kind of resisting force is known as Normal Stress. 

          Normal Force (σ) = F/A         (in N/m²) 

    Types of Normal Force 

• Tensile Strength (Stress) 
• Compressive Strength (Stress) 
• Bending Strength (Stress)

     2. Shear Stress 

          

           When a force is applied at the corner of the surface of an object, a resisting force acts to prevent the body from shear. In this case the developed resisting force is called shear stress. 

          Shear stress acts parallel to the surface. For Example - Shear stress prevents the deformation of originally rectangular object into parallelogram. 

            Shear stress (τ) = F/A          (in N/m²) 

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