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)
ConversionConversion EmoticonEmoticon