693.932 PEOPLE
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Sherry, Andrew H.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (63/63 displayed)
- 2022Capturing the Temperature Dependence of Cleavage Fracture Toughness in the Ductile-to-Brittle Transition Regime in Ferritic Steels using an Improved Engineering Local Approach
- 2019Use of local approaches to calculate changes in cleavage fracture toughness due to pre-straining and constraint effectscitations
- 2019Using local approaches to fracture to quantify the local conditions during the ductile-to-brittle transition in ferritic steels
- 2018Ductile Fracture Behaviour of Hot Isostatically Pressed Inconel 690 Superalloycitations
- 2018Effect of Temperature on the Fracture Toughness of Hot Isostatically Pressed 304L Stainless Steelcitations
- 2018Tensile Fracture Behavior of 316L Austenitic Stainless Steel Manufactured by Hot Isostatic Pressingcitations
- 2018Ductile Fracture Assessment of 304L Stainless Steel Using 3D X-ray Computed Tomographycitations
- 2017Predicting the effect of constraint on cleavage and ductile fracture toughness using area contour toughness scalingcitations
- 2017An Assessment of the Ductile Fracture Behaviour of Hot Isostatically Pressed and Forged 304L Stainless Steelcitations
- 2017Size and geometry effects in notched compact tension specimenscitations
- 2017Erratum to
- 2017Investigation of residual stress effects on apparent fracture toughness of high, medium and very low constraint geometries
- 2016Effect of Oxygen Content Upon the Microstructural and Mechanical Properties of Type 316L Austenitic Stainless Steel Manufactured by Hot Isostatic Pressingcitations
- 2016Mechanistic studies on type 300 stainless steels manufactured by Hot Isostatic Pressingcitations
- 2016Mechanistic studies on type 300 stainless steels manufactured by Hot Isostatic Pressing:The impact of oxygen involvement on fracture behaviourcitations
- 2016Microstructural Correlation of Hardness Profile in Martensitic Stainless Steel Weldmentcitations
- 2015Investigation of two-parameter approach to assessment of defects in residual stress fields
- 2015Prediction of retained residual stresses in laboratory fracture mechanics specimens extracted from welded components
- 2015A Microstructural Study on the Observed Differences in Charpy Impact Behavior Between Hot Isostatically Pressed and Forged 304L and 316L Austenitic Stainless Steelcitations
- 2015Rousselier Parameter Calibration for Esshete Weld Metalcitations
- 2015A method to derive the Jc value of A 1T SE(B) using Charpy impact energy in the lower ductile to brittle transition
- 2014Finite Element Simulation of a Circumferential Through-Thickness Crack in a Cylindercitations
- 2014An engineering procedure for calculating cleavage fracture toughness from charpy specimen data using a mechanistic approach for ferritic steels
- 2013Effect of strain paths and residual delta ferrite on the failure of cold rolled austenitic stainless steels, type 304Lcitations
- 2013Advanced assessment of the ductile fracture mechanism in A508 class 3 reactor pressure vessel steel using laboratory X-ray tomographycitations
- 2013Advanced assessment of ductile tearing in nuclear reactor pressure vessel steel using x-ray tomography
- 2013Prediction of SENB fracture toughness from charpy data using the beremin model in the lower transition regioncitations
- 2013Effects of martensite development on lattice strain evolution during the in situ deformation of austenitic stainless steels at cryogenic temperaturescitations
- 2012An engineering assessment methodology for non-sharp defects in steel structures - Part I: Procedure developmentcitations
- 2012Magnitude and distribution of retained residual stresses in laboratory fracture mechanics specimens extracted from welded componentscitations
- 2012SCC of sensitized 304SS in high temperature water with anionic impurities contamination
- 2012Fracture toughness evaluation in C(T) specimens with reduced out-of-plane constraintcitations
- 2012The characterization and interpretation of ductile fracture mechanisms in AL2024-T351 using X-ray and focused ion beam tomographycitations
- 2012Stress corrosion cracking of sensitized type 304 stainless steel in high-temperature water with anionic impurities contaminationcitations
- 2012Advanced assessment of the integrity of ductile components
- 2012Influence of Pd and Ru additions on stress corrosion cracking of austenitic stainless steelscitations
- 2012Assessment of constraint effects on the local behaviour of a propagating crack under cyclic loading
- 2012An engineering assessment methodology for non-sharp defects in steel structures - Part II: Procedure validation and constraint analysiscitations
- 2012Stress corrosion cracking of Ru doped 304 stainless steel in high temperature watercitations
- 2012An investigation of SCC susceptibility of virgin and ruthenium-modified austenitic stainless steels in high-temperature oxygenated water by SSRT testing
- 2011The influence of minor additions of platinum group metals on stress corrosion cracking in austenitic stainless steels
- 2011Investigation into the effect of residual stress on crack-tip constraint and brittle fracturecitations
- 2011Characterisation of the residual stress field and mechanical properties of a narrow-gap girth-welded stainless steel pipe and subsequent application to a numerical modelcitations
- 2010Preliminary evaluation of digital image correlation for in-situ observation of low temperature atmospheric-induced chloride stress corrosion cracking in austenitic stainless steelscitations
- 2010Mechanical properties and fracture of materialscitations
- 2010Assessment of fitness for servicecitations
- 2010Quantification of ductile damage in AL2024-T351 using x-ray tomographycitations
- 20093D modelling of intergranular stress corrosion cracking (IGSCC)
- 2008Introducing heterogeneity into brittle fracture modeling of a 22NiMoCr37 ferritic steel ring forgingcitations
- 2008Grain-scale heterogeneity effect on mechanistic modelling of cleavage fracture of a ferritic rpv steel forging materialcitations
- 2007Measurement and modelling of residual stress effects on crackscitations
- 2007Measurement and modelling of residual stress effects on crackscitations
- 2006Validation of constraint-based methodology in structural integrity of ferritic steels for nuclear reactor pressure vesselscitations
- 2006Residual stress effects on ductile tearingcitations
- 2005Numerical simulation of tearing-fatigue interactions in 316l(N) austenitic stainless steelcitations
- 2005Material constraint parameters for the assessment of shallow defects in structural components. Part II: Constraint-based assessment of shallow defectscitations
- 2005Microstructure engineering for improved intergranular stress corrosion cracking resistance of stainless steels
- 2005Tearing-fatigue interactions in 316L(N) austenitic stainless steelcitations
- 2005Material constraint parameters for the assessment of shallow defects in structural components - Part I: Parameter solutionscitations
- 2004Residual Stress Driven Creep Cracking in Type 316 Stainless Steelcitations
- 2003The assessment of reactor pressure vessel defects allowing for crack tip constraint and its effect on the calculation of the onset of the upper shelfcitations
- 2001Key features arising from structural analysis of the NESC-1 PTS benchmark experimentcitations
- 2001Developments in local approach methodology with application to the analysis/re-analysis of the NESC-1 PTS benchmark experimentcitations
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document
Advanced assessment of the ductile fracture mechanism in A508 class 3 reactor pressure vessel steel using laboratory X-ray tomography
Abstract
Ductile damage is characterised by the nucleation, growth and coalescence of voids at initiating particles within the volume of high triaxial stresses and plastic strain ahead of a crack-tip or stress concentrator. To establish a more detailed understanding of the mechanism of ductile fracture in the A508 Class 3 ferritic RPV steels and to improve fracture models, the ductile damage was quantified below the fracture surface of tested compact test specimens using laboratory X-ray tomography imaging with sufficient resolution to image voids of approximately 10μm in diameter. The average distribution of void volume fraction as a function of distance below the fracture surface was quantified, and the initiating and coalescence mechanisms were characterised. The highest void volume fraction was observed at the fracture surface and this tends to decrease as a function of distance below the fracture surface. This decrease is periodically perturbed by large voids associated with inclusions which are distributed throughout the microstructure and act as further nucleating sites at low strains. This distribution of voids was correlated with the local variations in stress triaxiality and plastic strain derived from finite element analyses to provide a relationship between experimental observations and the Rice and Tracey model. These correlations aim to provide new data and understanding with which to calibrate mechanistically based models such as the Gurson-Tvergaard-Needleman (GTN) model. Copyright © 2013 by ASME.