elastic-plastic model

An elastic-plastic model describes how materials deform when subjected to forces. "Elastic" deformation is temporary; the material bends or stretches but returns to its original shape once the force is removed. "Plastic" deformation is permanent; the material changes shape even after the force is gone. This model helps predict how materials behave under different loads, showing that they initially deform elastically and, if the force exceeds a certain point called the yield strength, they deform plastically. It is essential in engineering to ensure structures can withstand forces without permanently compromising their integrity.