Before revision: The elastic behavior of materials often extends into a non-linear region, represented in figure 1 by point 2 (the "yield point "), up to which deformations are completely recoverable upon removal of the load; that is, a specimen loaded elastically in tension will elongate, but will return to its original shape and size when unloaded.
After revision: The elastic behavior of materials often extends into a non-linear region, represented in figure 1 by strength 2 (the "yield point "), up to which deformations are completely recoverable upon removal of the load; that is, a specimen loaded elastically in tension will elongate, but will return to its original shape and size when unloaded.