Plastic Deformation ~ MECHTECH GURU

Plastic Deformation

Plastic Deformation

Permanent deformation, which persists even when deforming load is removed (function of stress, temperature & rate of straining) Caused by loads exceeding elastic limit & occurs after elastic deformation 

Non-linear relation between stress and strain (nature varies with material & deformation condition) Exhibit yield point phenomenon (yield stress) 

Continued plastic deformation leads to fracture (instantaneous fracture for brittle material & necking followed by fracture for ductile material)

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