When a system of forces or loads act on a body, it undergoes some deformation. This deformation per unit length is known as unit strain or simply a strain. It is denoted by a Greek letter epsilon (ε). Mathematically,

Strain, ε = δl / l               or            δl = ε.l


δl = Change in length of the body,

and l = Original length of the body.



A textbook of Machine Design by R.S.Khurmi and J.K.Gupta

About Keval Chaudhari

I have recently passed my Bachelor of Engineering in Mechanical Branch. I have expertise in CAD system. Also, I am interested to make new things.

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