This International Standard specifies the ISO method for determining the plane-strain fracture toughness of homogeneous metallic materials using a specimen that is notched and precracked by fatigue@ and subjected to slowly increasing crack displacement force.
EN ISO 12737:2010 history
2010EN ISO 12737:2010 Metallic materials - Determination of plane-strain fracture toughness
2005EN ISO 12737:2005 Metallic materials - Determination of plane-strain fracture toughness
1999EN ISO 12737:1999 Metallic Materials - Determination of Plane-Strain Fracture Toughness