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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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Fernandes, Aa
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (34/34 displayed)
- 2021Fatigue performance prediction of S235 base steel plates in the riveted connectionscitations
- 2020Fatigue behaviour of bolted joints for rack structurescitations
- 2020Fatigue behavior of cold roll-formed rail profiles for rack structures
- 2019Influence of fillet end geometry on fatigue behaviour of welded jointscitations
- 2018Fatigue analysis of a railway bridge based on fracture mechanics and local modelling of riveted connectionscitations
- 2017ULTRA-LOW-CYCLE FATIGUE BEHAVIOR OF FULL-SCALE STRAIGHT PIPES UNDER ALTERNATING BENDINGcitations
- 2017Strain-based approach for fatigue crack propagation simulation of the 6061-T651 aluminium alloycitations
- 2017Combined analytical-numerical methodologies for the evaluation of mixed-mode (I plus II) fatigue crack growth rates in structural steelscitations
- 2016Monotonic, Low-Cycle Fatigue, and Ultralow-Cycle Fatigue Behaviors of the X52, X60, and X65 Piping Steel Gradescitations
- 2016A new ultra-low cycle fatigue model applied to the X60 piping steelcitations
- 2015Study of formability of sandwich shells with metal foam cores based on punch penetration test
- 2015ULTRA-LOW-CYCLE FATIGUE BEHAVIOUR OF FULL-SCALE ELBOWS
- 2014Study on the forming of sandwich shells with closed-cell foam corescitations
- 2014COMPARISON OF THE MONOTONIC, LOW-CYCLE AND ULTRA-LOW-CYCLE FATIGUE BEHAVIOURS OF THE X52, X60 AND X65 PIPING STEEL GRADEScitations
- 2013STUDY OF FORMABILITY OF SANDWICH SHELLS WITH METAL FOAM COREScitations
- 2012Numerical Modelling and Experimental Study of Sandwich Shells with Metal Foam Corescitations
- 2012Numerical and experimental study of the bulge test of sandwich shells with metal foam cores
- 2012RETROFITTING OF OLD RIVETED PORTUGUESE BRIDGES. PAST AND CURRENT REMNANT LIFE ASSESSMENT RESEARCH
- 2011Modeling of Sandwich Sheets with Metallic Foamcitations
- 2011Strain-life and crack propagation fatigue data from several Portuguese old metallic riveted bridgescitations
- 2011FEM analysis of Sandwich Shells with Metallic Foam Corescitations
- 2011Analysis of Sandwich Shells with Metallic Foam Cores based on the Uniaxial Tensile Testcitations
- 2011NUMERICAL AND EXPERIMENTAL STUDY OF SANDWICH PLATES WITH METALLIC FOAM CORES
- 2010STUDY OF SANDWICH SHELLS WITH METALLIC FOAM COREScitations
- 2010Correlation analysis of MAC robotized welding parameters by the Taguchi technique
- 2008Analysis of Fatigue Damage under Block Loading in a Low Carbon Steelcitations
- 2007Fatigue assessment of welded tubular steel structures details by using FEM
- 2007Influence of the submerged arc welding in the mechanical behaviour of the P355NL1 steel - part II: analysis of the low/high cycle fatigue behaviourscitations
- 2006Low and high cycle fatigue and cyclic elasto-plastic behavior of the P355NL1 steelcitations
- 2006Fatigue behaviour of riveted steel lap jointscitations
- 2006A discussion on the performance of continuum plasticity models for fatigue lifetime assessment based on the local strain approach
- 2005Finite element modeling of fatigue damage using a continuum damage mechanics approachcitations
- 2004Finite element modelling of fatigue damage using a continuum damage mechanics approachcitations
- 2001Fracture analysis of forks of a heavy duty lift truckcitations
Places of action
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article
Influence of fillet end geometry on fatigue behaviour of welded joints
Abstract
This paper presents a fatigue analysis of a type of fillet welded joint representative of one main joint of the steel box girder of the Alcacer do Sal railway bridge. From previous studies, it was found that the welded joint between the box girder diagonal and the central hanger gusset is one of the most stressed details of the bridge. This welded joint was not fully manufactured according to current construction procedures, as regards the fillet weld end configuration. In order to assess the fatigue behaviour of such welded joint, the present study combines an experimental campaign and numerical analysis. A total of four welded joint series were produced in order to allow the comparison of the fatigue performance of similar type of welded joint of the Alcacer do Sal bridge with welded joints produced according to existing recommendations, such as EC3. Since scale-down specimens were considered, two different thicknesses were included in this study for each joint configuration, to allow the verification of any thickness effect. Concerning the numerical analyses, two main numerical tools were used: the standard Finite Element Method (FEM) with ANSYS and the eXtended Finite Element Method (XFEM) with ABAQUS. Fatigue life predictions were performed including both fatigue crack initiation and fatigue crack propagation phases. The number of cycles to initiate a fatigue crack was computed using local notch strain-life approaches, and the number of cycles for fatigue crack propagation was computed by integrating the Paris fatigue crack growth law with stress intensity factors computed with ANSYS (virtual crack closure technique) and ABAQUS (contour integral method, 3D XFEM model). Experimental tests demonstrated little influence of fillet weld end geometry on fatigue behaviour of welded joints and plate thickness effects were also reduced as also confirmed by the similar fatigue crack propagation rates. Both numerical simulations provided very accurate predictions of the experimental S-N curves, however the XFEM modelling opens new possibilities for mix mode fatigue crack propagation simulations.