PPT Slide
The theory of plasticity is concerned with a number of different types of problems. It deals with the behavior of metals at strains where Hooke’s law is no longer valid.
From the viewpoint of design, plasticity is concerned with predicting the safe limits for use of a material under combined stresses. i.e., the maximum load which can be applied to a body without causing:
- Excessive Yielding
- Flow
- Fracture
Plasticity is also concerned with understanding the mechanism of plastic deformation of metals.