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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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Ehlers, Sören
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2024Fatigue crack initiation and propagation in plain and notched PBF-LB/M, WAAM, and wrought 316L stainless steel specimenscitations
- 2023Application of the limit design state to hull-girder ultimate strength evaluations on the ship-shaped structures
- 2023Application of the limit design state to hull-girder ultimate strength evaluations on the ship-shaped structures
- 2023Hull girder ultimate strength of bulk carrier (HGUS-BC) evaluation: structural performances subjected to true inclination conditions of stiffened panel members
- 2023Strengthening mechanisms and strain hardening behavior of 316L stainless steel manufactured by laser-based powder bed fusioncitations
- 2023Mechanical behavior of additively and conventionally manufactured 316L stainless steel plates joined by gas metal arc weldingcitations
- 2023Mechanical behavior of additively and conventionally manufactured 316L stainless steel plates joined by gas metal arc weldingcitations
- 2022Relation between the fatigue and fracture ductile-brittle transition in S500 welded steel jointscitations
- 2022Relation between the fatigue and fracture ductile-brittle transition in S500 welded steel joints
- 2022Comparison of local fatigue assessment methods for high-quality butt-welded joints made of high-strength steel
- 2022Influence of pitting corrosion on the fatigue strength of offshore steel structures based on 3D surface scans
- 2021Probability analysis of PIT distribution on corroded ballast tank
- 2021Fatigue strength of PBF-LB/M and wrought 316L stainless steel : effect of post-treatment and cyclic mean stress
- 2020Extension of the strain energy density method for fatigue assessment of welded joints to sub-zero temperatures
- 2019Experimental study on structural responses of fibre glass plates under lateral moving
- 2019Fatigue life enhancement of TIG-welded 304L stainless steels by shot peening
- 2019Power spectrum for surface description of corroded ship structure from laser scan
- 2018Comparison of fatigue strength of post-weld improved high strength steel joints and notched base material specimens
- 2018Effect of corrosion pit density on the fatigue life of aluminum 1050A
- 2018Fatigue strength of high-strength steel after shipyard production process of plasma cutting, grinding, and sandblastingcitations
- 2017Influence of nonsymmetric steel sandwich panel joints on response and fatigue strength of passenger ship deck structures
- 2013Ultimate strength of corroded web-core sandwich beamscitations
- 2012Influence of weld stiffness on buckling strength of laser-welded web-core sandwich platescitations
- 2009Material relation to assess the crashworthiness of ship structurescitations
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document
Fatigue crack initiation and propagation in plain and notched PBF-LB/M, WAAM, and wrought 316L stainless steel specimens
Abstract
Additively manufactured (AM) components—either made by laser-powder bed fusion or wire and arc additive manufacturing—typically contain process-related defects on and near surfaces that can be removed by machining. Various studies have shown that post-treatment, such as machining significantly improves the fatigue strength of AM parts. To this day, however, hardly any studies have investigated the fatigue strength of post-treated additively manufactured components with notches. In this study, fatigue tests were performed on plain and notched specimens to determine and compare the crack initiation and crack propagation behavior due to different manufacturing-related effects. Tests were performed on specimens produced by the two aforementioned AM processes and compared to specimens taken from wrought sheets. The fatigue strength of AM materials is influenced by microstructure, defects, residual stress, and notches. PBF-LB/M specimens exhibit the highest fatigue strength in plain, notch-free conditions, attributed to differences in microstructure and static strength affecting fatigue crack initiation. Notched specimens show larger differences among materials, with PBF-LB/M having shorter fatigue crack propagation life related to line-type defect clusters, while the plain PBF-LB/M specimens are less affected as their fatigue strength is primarily determined by fatigue crack initiation.