Original: According to the properties of the material, failure will occur as yield for materials with ductile behaviour (most metals, some soils and plastics) or as rupture for brittle behaviour (geomaterials, cast iron, glass, etc).
Simplified: Then materials will react with ductile behaviour (most metals, some soils and plastics) or with fracture in case of brittle materials (geomaterials, cast iron, glass, etc).