2009:27 Analysis Strategy for Fracture Assessment of Defects in Ductile Materials

SSM has supported research for investigating the role of secondary stresses when fracture assessments are performed for cracked structures made of ductile materials. There are evidences that indicate that some secondary stresses, such as weld residual stresses, are not as important as primary stresses for estimating the safety margin against rupture (measured by the J-integral) for the type of ductile materials which can be found in nuclear power plants.