Dec 27, 2017
What is the Elastic Deformation
Elastic deformation refers to the material under the action of external forces generated deformation, when the external force completely disappeared deformation disappeared phenomenon. Elastic deformation is divided into linear elastic, nonlinear elastic and three kinds of anelastic. Linear elastic deformation obey Hooke's law, and the strain changes instantaneously with the single value of stress. Nonlinear elastic deformation does not obey Hooke's law, but still has instantaneous singularity. Hysteresis deformation also conforms to Hooke's law, but does not occur at the moment of loading, and it takes a while to reach the stable value corresponding to Hooke's law. In addition to the elastic deformation can produce, the internal crystal distortion can also be generated within a small elastic deformation, such as vacancies, interstitial atoms, dislocations, grain boundaries and other crystal defects around due to the irregular arrangement of atoms and the existence of elastic deformation. There may also be elastic deformation around inclusions and the second phase.
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