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| Ertürk, Emre |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Azevedo, Nuno Monteiro |
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| Rignanese, Gian-Marco |
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Battini, Davide
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Topics
Publications (8/8 displayed)
- 2022Anisotropic Behaviour of Extruded Short Carbon Fibre Reinforced PEEK Under Static and Fatigue Loadingcitations
- 2022Microstructural, Mechanical, and Tribological Characterization of Selective Laser Melted CoCrMo Alloy under Different Heat Treatment Conditions and Hot Isostatic Pressing.citations
- 2022Static and fatigue behavior in presence of notches for polyamide 12 (PA12) additively manufactured via Multi Jet Fusion™ processcitations
- 2021Microstructural, Mechanical, and Tribological Characterization of Selective Laser Melted CoCrMo Alloy under Different Heat Treatment Conditions and Hot Isostatic Pressingcitations
- 2019Evaluation on the fatigue behavior of sand-blasted AlSi10Mg obtained by DMLScitations
- 2019Investigation on fatigue strength of sand-blasted DMLS-AlSi10Mg alloycitations
- 2018Influence of micro-notches on the fatigue strength and crack propagation of unfilled and short carbon fiber reinforced PEEKcitations
- 2016Shape memory behavior of epoxy-based model materials: Tailoring approaches and thermo-mechanical modelingcitations
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article
Static and fatigue behavior in presence of notches for polyamide 12 (PA12) additively manufactured via Multi Jet Fusion™ process
Abstract
Static, fatigue and notch sensitivity tests were performed on Multi Jet Fusion™ (MJF) Polyamide 12 (PA12) specimens in unnotched conditions or with blunt/sharp notches. Stress concentration factors, and potential applicability of theory of critical distances (TCD) were investigated. Fracture surfaces were comparatively analyzed for quasi-static, fatigue and cryogenic failures. Stress-Life curves were determined and MJF-PA12 showed static and fatigue properties comparable to conventional PA12. The blunt notch had limited impact on fatigue strength, with failure onsetting from internal defects. The sharp notch showed low fatigue notch sensitivity but reduced static strength and fatigue life, with failure onsetting from notch tip.