| People | Locations | Statistics |
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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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| Kononenko, Denys |
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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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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Hertelé, Stijn
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (45/45 displayed)
- 2024Damage evolution of a hydrogen charged grade X56 pipeline steel evaluated using X-ray micro-CTcitations
- 2024The effect of hydrogen and notch orientation in SENT specimens on the fracture toughness of an API 5L X70 pipeline steelcitations
- 2024Hydrogen-assisted degradation of an X70 pipeline steel evaluated by single edge notched tension testingcitations
- 2023Fractographic study of quasi-static tensile tested, electrochemically hydrogen charged X70 pipeline steels
- 2023Modeling of hydrogen-charged notched tensile tests of an X70 pipeline steel with a hydrogen-informed Gurson modelcitations
- 2023Effect of stress triaxiality on the hydrogen embrittlement micromechanisms in a pipeline steel evaluated by fractographic analysiscitations
- 2023Confirming debonding of non-metallic inclusions as an important factor in damage initiation in bearing steelcitations
- 2023Influence of stress triaxiality on hydrogen assisted ductile damage in an X70 pipeline steelcitations
- 2023Numerical modelling of rolling contact fatigue damage initiation from non-metallic inclusions in bearing steelcitations
- 2023Investigation of the dynamic strain aging effect in austenitic weld metals by 3D-DICcitations
- 2022Characterization of hydrogen-assisted degradation of a vintage and a modern pipeline steel
- 2022Single edge notched tension testing for assessing hydrogen embrittlement : a numerical study of test parameter influencescitations
- 2022Hydrogen embrittlement in pipeline steels and welds
- 2022Effects of fixture configurations and weld strength mismatch on J-integral calculation procedure for SE(B) specimenscitations
- 2022Effects of fixture configurations and weld strength mismatch on J-integral calculation procedure for SE(B) specimenscitations
- 2022Influence of electrochemical hydrogenation parameters on microstructures prone to hydrogen-induced crackingcitations
- 2022Effect of hydrogen charging on Charpy impact toughness of an X70 pipeline steelcitations
- 2021An interdisciplinary framework to predict premature roller element bearing failures in wind turbine gearboxescitations
- 2021An interdisciplinary framework to predict premature roller element bearing failures in wind turbine gearboxescitations
- 2021Microstructural investigation and identification of intermetallic σ-phase in solution annealed 316L-type austenitic stainless steelcitations
- 2021Fully-coupled continuum damage model for simulation of plasticity dominated hydrogen embrittlement mechanismscitations
- 2021Fully-coupled continuum damage model for simulation of plasticity dominated hydrogen embrittlement mechanismscitations
- 2020Calibrating a ductile damage model for two pipeline steels : method and challengescitations
- 2020Calibrating a ductile damage model for two pipeline steels : method and challengescitations
- 2020A comprehensive study on the microstructure and mechanical properties of arc girth welded joints of spiral welded high strength API X70 steel pipecitations
- 2019Fatigue crack propagation in HSLA steel specimens subjected to unordered and ordered load spectra
- 2019Crack tip constraint analysis in welded joints with pronounced strength and toughness heterogeneitycitations
- 2019Assessment of ultra-high cycle fatigue behavior of EN-GJL-250 cast iron using ultrasonic fatigue testing machine
- 2019Assessment of ultra-high cycle fatigue behavior of EN-GJL-250 cast iron using ultrasonic fatigue testing machine
- 2018Identification and prediction of mixed-mode fatigue crack path in high strength low Alloy steelcitations
- 2018A non-linear model for corrosion fatigue lifetime based on continuum damage mechanicscitations
- 2018Finite element analysis of fretting fatigue fracture in lug joints made of high strength steelcitations
- 2018Corrosion fatigue in offshore structures
- 2016Evaluation of a finite element model for SENT testing of welded connections
- 2016Characterization of heterogeneous arc welds through miniature tensile testing and Vickers hardness mappingcitations
- 2015Framework for key influences on tensile strain capacity of flawed girth weldscitations
- 2014Framework for key influences on tensile strain capacity of flawed girth welds
- 2014Effects of weld strength heterogeneity on crack driving force in stress and strain based design scenarios
- 2014Failure prediction of curved wide plates using the strain-based failure assessment diagram with correction for constraint and notch radius
- 2014Instrumented indentation for determination of full range stress-strain curves
- 2013Weld strength mismatch in strain based flaw assessment: which definition to use?citations
- 2012Weld strength mismatch in strain based flaw assessment: which definition to use?
- 2011Sensitivity of plastic response of defective pipeline girth welds to the stress-strain behavior of base and weld metal
- 2010Interpretation of stress-strain curve in pipeline researchcitations
- 2010Determination of full range stress-strain behavior of pipeline steels using tensile characteristics
Places of action
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document
Calibrating a ductile damage model for two pipeline steels : method and challenges
Abstract
This work is part of a project that aims to develop a micromechanics based damage law taking into account hydrogen assisted degradation. A 'vintage' API 5L X56N and a 'modern' API 5L X70M pipeline steel have been selected for this purpose. The paper focuses on an experimental calibration of ductile damage properties of the well known complete Gurson model for the two steels in absence of hydrogen. A basic microstructural characterization is provided, showing a banded ferrite-pearlite microstructure for both steels. Charpy impact tests showed splits at the fracture surface for the X70 steel. Double-notched round bar tensile tests are performed, aiming to provide the appropriate input for damage model calibration. The double-notched nature of the specimens allows to examine the material state at maximum load in the unfailed notch, and the final material state in the failed notch. Different notch radii are used, capturing a broad range of positive stress triaxialities. The notches are optically monitored for transverse necking in two perpendicular directions (transverse to rolling and through thickness) to reveal any anisotropy in plastic deformation and/or damage. It is explained how the occurrence of splits at the segregation zone, and anisotropy complicate the calibration procedure. Calibration is done for each steel and acceptable results are obtained. However, the occurrence of splits did not allow to evaluate the damage model for the highest levels of tested stress triaxiality.