Ship&Offshore | Ausgabe 06/2016
Breakthrough finding on brittle crack-arrest toughness
ULCSS | ClassNK has concluded that the minimum required brittle crack-arrest toughness for extremely thick brittle crack-arrest steel plates of 100mm used in ultra-large container ships (ULCSs) is 8,000 N/mm3/2. The technical expertise is a world-first, according to the classification society, and is based on verification tests carried out as part of a joint R&D project in collaboration with the Japan Welding Engineering Society (JWES).