According to the properties of the material , failure will occur as yield for materials with ductile behaviour -LRB- most metals , some soils and plastics -RRB- or as rupture for brittle behaviour -LRB- geomaterials , cast iron , glass , etc -RRB- .

Then materials will react with ductile behaviour -LRB- most metals , some soils and plastics -RRB- or with fracture in case of brittle materials -LRB- geomaterials , cast iron , glass , etc -RRB- .
