What is stress and strain in mechanical engineering?
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Strain. Strain is the response of a system to an applied stress. When amaterial is loaded with a force, it produces a stress, which then causes a material to deform. Engineering strain is defined as the amount of deformation in the direction of the applied force divided by the initial length of the material.
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The stress is the force applied to an object. The maximum force a body tends to withstand without breaking is called breaking stress. The point at which an object break is called breaking point. The stress is the ratio of force to the area on which force is applied. The strain is the amount of deformation due to the applied force. The recoverable change of an object is called elastic deformation and unrecoverable change of an object is called plastic deformation. The main difference between stress and strain is stress is an active force and strain is a reactive force.
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