| 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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article
Crack tip constraint analysis in welded joints with pronounced strength and toughness heterogeneity
Abstract
Application of standardized fracture testing methods in heterogeneous welded joints might lead to overestimation or underestimation of fracture toughness and consequentially to inaccurate estimation of loading capacity of welded structure. Combining experimental testing and numerical modelling of double mismatched welded joints provided a view on influence of pronounced strength heterogeneity on fracture behaviour under monotonous loading. Investigated double mismatched welded joints had a fatigue crack located in one mismatched weld material region. The fatigue crack plane was perpendicular to the interface of two distinctive mismatched weld material regions, while the stable crack extension was estimated to be from one weld material region to other, crossing the interface. Single edge notched bend (SE(B)) specimens were used to investigate double mismatched welded joint fracture behaviour under high constraint conditions. Crack extension has been evaluated using normalization data reduction technique and crack driving force has been evaluated as specified in ASTM E1820 standard. Stress triaxiality has been implemented as a second fracture parameter, evaluating level of constraint. Obtained results show that combination of strength overmatched and undermatched weld material has a significant effect on the weld load capacity and stress triaxiality ahead of the crack tip. The latter leads to reduced or increased fracture toughness of the weld as the crack tip is closer to the fusion line between overmatched and undermatched weld material. Finally, computational simulations revealed how double mismatched weld configuration alters the stress field near the crack tip and corresponding values of J-integral. This implies that standard fracture test overestimate or underestimate fracture toughness of the double mismatched welded joint.