What is the difference between tensile deformation and bending deformation?

Tensile deformation occurs when external forces are directed along one straight line in different directions along the object. In this case, the imaginary longitudinal fibers are lengthened (shortened), the elongations of all fibers will be the same.
Bending is a deformation in which the axis of the bar and all its fibers parallel to the axis of the bar are bent under the action of external forces. The amount of fiber change will be different.

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