If stress is absent in a body, then there is no way strain will develop in that body. ![]() So, we can say that strain is the product of stress. Strain produced in a body is only due to the stress applied to it. Now we are going to understand the main difference between these two. We already have discussed the basic definition of stress and strain. The strain is defined as the ratio between the deformed dimension to the original dimension of an object. The force applied per unit area on the object is known as stress. ![]() The tensile force stretches the body while compressive force compresses the body. Whenever we apply a force on a body it can either be a tensile force or a compressive force. Before we start discussing Hooke’s Law it is very important for us to understand the nature of force.
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