Changes in material shape and dimensions due to external forces. The deformation consists of two parts, elastic and plastic deformation. Elastic deformation always precedes plastic.

Changes in material shape and dimensions due to external forces. The deformation always consists only of the elastic part.

Changes in material shape and dimensions due to external forces. The deformation consists of two parts, elastic and plastic. Plastic deformation always precedes elastic.

Changes in material shape and dimensions due to external forces. The deformation consists of two parts, elastic and plastic deformation. Depending on the material, the plastic deformation may be premature.