What are the elastic stress-strain behaviour ?

Elastic stress-strain behaviour.

Elastic stress-strain behavior is a type of material behavior where a material deforms elastically in response to applied stress and returns to its original shape when the stress is removed. This behavior is observed in many materials, including metals, ceramics, polymers, and composites.

In the elastic region, the stress-strain behavior of a material is linear and follows Hooke's law, where the stress is directly proportional to the strain. The proportionality constant is called the elastic modulus, which is a measure of the stiffness of the material.

When a material is subjected to applied stress within its elastic limit, it deforms elastically, meaning that the deformation is fully recoverable upon release of the stress. This is due to the reversible movement of atoms or molecules in the material's crystal structure.

Overall, elastic stress-strain behavior is an important material property to consider in many engineering applications, such as in the design of structures, machinery, and consumer products. It allows engineers to predict the deformation of a material under a given load and ensure that the material will not experience permanent deformation or failure.

Stress-strain curve for brittle materials like Ceramics,polymer , some metals etc.