Ceramic Elastic Deformation

Understanding elastic deformation is very important in ceramics to eliminate instantaneous brittle fracture at some applied stress levels.

Ceramic elastic deformation.

Author links open overlay panel philip c dokko joseph a pask. A temporary shape change that is self reversing after the force is removed so that the object returns to its original shape is called elastic deformation. Grain and grain boundary processes contribute to plastic strain. This change in shape is called deformation.

When a sufficient load is applied to a metal or other structural material it will cause the material to change shape. When an exterior stress is applied to a solid body the body tends to pull itself apart. The complexity of the characters of ceramic materials enhances difficulties of evaluating the effect of various parameters on the plastic behavior of the materials. Deformation can be elastic or plastic.

Plastic deformation of ceramic materials. Deformation can be elastic or plastic. This causes the distance between atoms in the lattice to increase. This force is known as strain.

Pores can reduce the load carrying cross section area cause local stress concentrations and lower elastic moduli. This causes a force trying to resist the deformation. The fracture stress is usually the same or very close to the elastic limit. Understanding elastic deformation is very important in ceramics to eliminate instantaneous brittle fracture at some applied stress levels.