| 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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Remes, Heikki
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (31/31 displayed)
- 2024Local relaxation of residual stress in high-strength steel welded joints treated by HFMIcitations
- 2024Strain-based analysis on the influence of local undercut geometry on fatigue crack initiation lifecitations
- 2024Experimental investigation and modelling of the nonlinear creep behaviour of additive-manufactured carbon fibre-reinforced polyethylene terephthalate (CF-PET).citations
- 2023On the Short-Term Creep and Recovery Behaviors of Injection Molded and Additive-Manufactured Tough Polylactic Acid Polymercitations
- 2023Fatigue damage process of additively manufactured 316 L steel using X-ray computed tomography imagingcitations
- 2023A novel method for measurements of microstructurally small fatigue crack growth using digital image correlationcitations
- 2023Local weld geometry-based characterization of fatigue strength in laser-MAG hybrid welded jointscitations
- 2023Study of cyclic crack-tip opening displacement of microstructurally small fatigue crack using digital image correlationcitations
- 2022EBSD characterisation of grain size distribution and grain sub-structures for ferritic steel weld metalscitations
- 2022Optimizing the Voce–Chaboche Model Parameters for Fatigue Life Estimation of Welded Joints in High-Strength Marine Structurescitations
- 2022Influence of microstructural deformation mechanisms and shear strain localisations on small fatigue crack growth in ferritic stainless steelcitations
- 2022Experimental Investigations on Stiffened and Web-core Sandwich Panels Made for Steel under Quasi-Static Penetrationcitations
- 2020Emerging Challenges for Numerical Simulations of Quasi-Static Collision Experiments on Laser-Welded Thin-Walled Steel Structurescitations
- 2020Fatigue strength modelling of high-performing welded jointscitations
- 2020Quantitative Characterization of the Spatial Distribution of Corrosion Pits Based on Nearest Neighbor Analysiscitations
- 2020The influence of interacting small defects on the fatigue limits of a pure iron and a bearing steelcitations
- 2019Optimisation of passenger ship structures in concept design stagecitations
- 2019Full-field Strain Measurements for Microstructurally Small Fatigue Crack Propagation Using Digital Image Correlation Methodcitations
- 2018Fatigue strength of high-strength steel after shipyard production process of plasma cutting, grinding, and sandblastingcitations
- 2018Local strain energy based fatigue assessment of cruciform welded joints: Experimental data analysis and influence of hot-dip galvanization
- 2018Microstructure and fatigue properties of friction stir welded high-strength steel platescitations
- 2017Influence of nonsymmetric steel sandwich panel joints on response and fatigue strength of passenger ship deck structures
- 2017Fatigue strength of laser-welded foam-filled steel sandwich beamscitations
- 2017Microporosity and statistical size effect on the fatigue strength of cast aluminium alloys EN AC-45500 and 46200citations
- 2017Synthesis of experimental testing and fatigue behavior of laser stake-welded T-joints on medium-high cycle fatigue rangecitations
- 2017The effect of interacting small defects on the fatigue limit of a medium carbon steelcitations
- 2017Allowable stresses in high-frequency mechanical impact (HFMI)-treated joints subjected to variable amplitude loadingcitations
- 2017Fatigue strength evaluation of small defect at stress concentrationcitations
- 2016Characterisation of local grain size variation of welded structural steelcitations
- 2014Influence of grain size distribution on the Hall–Petch relationship of welded structural steelcitations
- 2008Strain-based approach to fatigue strength assessment of laser-welded joints ; Laserhitsatun liitoksen väsymislujuuden arviointi venymämenetelmällä
Places of action
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article
Fatigue strength of laser-welded foam-filled steel sandwich beams
Abstract
aser stake-welded steel sandwich panels are widely used in engineering due to their high stiffness-to-weight ratios. The welds are thinner than the plates they join so that there are two crack-like notches on each side of a weld. As a consequence, the welded joints are susceptible to fatigue. In this study, as a remedy to the fatigue problem, low-density H80-grade Divinycell polyvinylchloride foam is bonded adhesively to the voids of stake-welded web-core sandwich beams. The foam reduces shear-induced stresses in the stake-welds. The choice of Divinycell H80 is founded on earlier J-integral-based finite element fatigue assessments of sandwich panels. Empty and the H80-filled sandwich beams are tested in three-point-bending for stiffness, ultimate strength and fatigue (load ratio R = 0.05). The failure modes in the weld joint region are studied using scanning electron microscopy. The experimental results show that the filling increases the stiffness of the sandwich beams by a factor of three while the weight is increased only by 6%. The ultimate strength is increased by 2.7 times. As for the fatigue behavior, the slope increases from m = 4.508 of empty panels to m = 7.321 of filled panels while the load level at 2 million cycles increases by a factor of 8.5.