| 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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Waele, Wim De
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (30/30 displayed)
- 2024Neural network based fatigue lifetime prediction of metals subjected to block loadingcitations
- 2023Stress intensity factor calculation for short cracks initiating from a semi-ellipsoidal pit
- 2023Quantitative analysis of the correlation between geometric parameters of pits and stress concentration factors for a plate subject to uniaxial tensile stresscitations
- 2023Investigation of the effect of pitting corrosion on the fatigue strength degradation of structural steel using a short crack modelcitations
- 2023Smart S-N curve for fatigue lifetime predictions of offshore wind turbine support structures affected by corrosion
- 2023Evaluation of the corrosion pit growth rate in structural steel S355 by phase-field modelling
- 2023Durability of an adhesively bonded joint between steel ship hull and sandwich superstructure pre-exposed to saline environment
- 2022Numerical study on the effect of pitting corrosion on the fatigue strength degradation of offshore wind turbine substructures using a short crack model
- 2022A numerical investigation on the pitting corrosion in offshore wind turbine substructures
- 2022Calibration and validation of extended back-face strain compliance for a wide range of crack lengths in SENB-4P specimenscitations
- 2022Effects of fixture configurations and weld strength mismatch on J-integral calculation procedure for SE(B) specimenscitations
- 2022Development and evaluation of the ultrasonic welding process for copper-aluminium dissimilar weldingcitations
- 2022Fatigue strength degradation of structural steel in sea environment due to pitting corrosion
- 2022Pitting corrosion and its transition to crack in offshore wind turbine supporting structures
- 2022Pitting Corrosion and Its Transition to Crack in Offshore Wind Turbine Supporting Structures
- 2022Test methods for corrosion-fatigue of offshore structures
- 2021Experimental and numerical study of a piezoelectric diaphragm, a smart sensor for electromechanical impedance-based structural health monitoring
- 2021Electrical admittance of a circular piezoelectric transducer and chargeless deformation effectcitations
- 2021An interdisciplinary framework to predict premature roller element bearing failures in wind turbine gearboxescitations
- 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
- 2020Evaluation of fatigue crack propagation in steel ESET specimens subjected to variable load spectracitations
- 2020Fatigue crack growth model incorporating surface waviness for Wire+Arc additively manufactured componentscitations
- 2020A comprehensive study on the microstructure and mechanical properties of arc girth welded joints of spiral welded high strength API X70 steel pipecitations
- 2019Enabling qualification of hybrid structures for lightweight and safe maritime transport
- 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
- 2019Weldability of high-strength aluminium alloy EN AW-7475-T761 sheets for aerospace applications, using refill friction stir spot weldingcitations
- 2019Assessment of ultra-high cycle fatigue behavior of EN-GJL-250 cast iron using ultrasonic fatigue testing machine
- 2017Metallographic evaluation of the weldability of high strength aluminium alloys using friction spot welding
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.