... Abstract The G fr criterion is a global approach devoted to ductile crack growth assessments. This paper presents an industrial numerical application of the G fr criterion for the ductile tearing crack growth prediction of a circular crack in the beak of a stainless-steel 45° inclined nozzle...

... originate in the crack tip blunting region but also in the ductile tearing region; in some cases, secondary cracks were observed to be on the order of mm in length running parallel to the primary crack. This work shows how the presence of this secondary damage influences the compliance measurements obtained...

... on ductile tearing prediction for large defects in components. Several approaches have been developed to accurately model the ductile tearing process and to take into account phenomena such as the triaxiality effect, or the ability to predict large tearing in industrial components. These advanced models...

... wall crack, a large ductile tearing was obtained. For the second configuration (FP2), with an external semi-elliptical crack, cleavage was obtained after a limited ductile tearing. ductile tearing large scale experiment ferritic steel Proceedings of the ASME 2021 Pressure Vessels & Piping...

... propagation phases of the test detailed ductile tearing analysis and brittle fracture assessment have been performed. In addition, relevant results of fractographic examination of the mock-up FP2 are presented and discussed. ATLAS+ ductile tearing brittle fracture stress triaxiality fracture...

... Abstract Structures containing large cracks and made in ductile materials may experience two types of failure mechanisms: ductile tearing or plastic collapse. Under displacement controlled loading ductile tearing is a stable crack growth mechanism. Plastic collapse leads to a much faster damage...

... accurately using the boundary layer model. An introduction to the next phase of work, which does accurately include these effects, is also provided. fracture constraint local approach ductile tearing initiation toughness IMPLEMENTATION OF DUCTILE DAMAGE MODELS TO DETERMINE CONSTRAINT PARAMETERS...

.... ATLAS+ ductile tearing stress triaxiality fracture mechanics cracks in piping DUCTILE TEARING SIMULATIONS TO SUPPORT DESIGN OF LARGE SCALE TESTS ON FERRITIC PIPES TO BE PERFORMED IN THE EUROPEAN PROJECT ATLAS+ Tomas Nicak Framatome GmbH Paul-Gossen-Str. 100, 91052 Erlangen, Germany tomas.nicak...

... Charpy PCC, Master curve on CT and SENT specimens, ductile tearing properties on CT and SENT specimens. In parallel, it is planned to test three 4PB large scale tests on pipings (FP1, FP2 and FP3) at room temperature on the EDF test facility with 3 configurations (shape, size and location) of cracks...

... of Manchester , UK Tecnatom , Spain Vattenfall , Sweden (WP6 leader) VTT , Finland ORNL , USA NIKIET , Russia Ductile tearing fracture mechanics assessment LBB local approach model residual stresses dissimilar metal welds 1 Copyright © 2013 by ASME EUROPEAN PROJECT ON STRUCTURAL...

... Transferability of fracture mechanics properties Ductile tearing Fracture mechanics assessment Porous metal plasticity Cladded pipes J-Integral Constraint modified specimens This paper describes new results of the STYLE study on investigations of transferability of fracture material...

... the assumption that these “small scale” material properties are fully transferable to “large scale” components. It is assumed that crack initiation in the ductile tearing regime is rather independent of the crack shape, a/W ratio, loading condition or size of the specimen (constraint effects). In order to check...

... 14 01 2011 The paper presents a fracture mechanics analyses of CT and surface cracked plate specimens (CCT) made from material Inconel 600. The main issue is to determine whether the plates fracture by ductile tearing or collapse with the aim of determining a simplified fracture...

... and qualification of EAM as a part of European Leak-before-break (LBB) procedures and on life time management of the integrity of RCPB components in European nuclear power plants. The project will interact with the European Network of Excellence NULIFE. KEY WORDS Ductile tearing, Fracture mechanics assessment, LBB...

..., will be presented in this paper. Details on the Gurson model calibration will also be provided. Moreover, influence of boundary conditions on the large scale test will be discussed. 2 Copyright © 2010 by ASME KEY WORDS Ductile tearing, Fracture mechanics assessment, Gurson model, Cladded pipes, J-Integral...

... 14 01 2011 This paper presents ductile initiation calculations and growth simulations of a surface crack up to pipe wall breakthrough. For validation purpose, one of the two BIMET configurations is selected. The EC program BIMET has been carried out to analyze the ductile tearing...

... will be applied to analyse fracture mechanics specimens made of Inconel 600. Special focus will be placed on the crack growth modelling based on the Gurson’s porous metal plasticity theory. All performed calculations will be compared with experiments. Ductile tearing Fracture mechanics assessment Gurson...