| 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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Lindroos, Tomi
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (55/55 displayed)
- 2024Lessons Learnt - Development Of Additive Manufacturing For Soft Magnetic Electric Motor Components
- 2024Nitrogen alloyed austenitic Ni-free stainless steel for additive manufacturingcitations
- 2023Estimating Long Term Behaviour Of DED-printed AlCoNiFe Alloy
- 2023Estimating Long Term Behaviour Of DED-printed AlCoNiFe Alloy
- 2023The effect of heat treatment on structure and magnetic properties of additively manufactured Fe-Co-V alloyscitations
- 2023Performance Driven Design And Modeling Of Compositionally Complex AM Al-Co-Ni-Fe Alloys
- 2023Performance Driven Design And Modeling Of Compositionally Complex AM Al-Co-Ni-Fe Alloys
- 2023High-Entropy Carbides:Processing And Characterization
- 2023Nitrogen Alloyed Austenitic Ni-free Stainless Steel For Additive Manufacturingcitations
- 2023High-Entropy Carbides: Processing And Characterization
- 2022Single-Track Laser Scanning as a Method for Evaluating Printability: The Effect of Substrate Heat Treatment on Melt Pool Geometry and Cracking in Medium Carbon Tool Steelcitations
- 2022Effect of alloying elements on Fe-Si-X soft magnetic material produced by AM and PM
- 2022Laser Powder Bed Fusion Of High Carbon Tool Steels
- 2022Lessons learnt - additive manufacturing of iron cobalt based soft magnetic materialscitations
- 2022Experimental and Calphad Methods for Evaluating Residual Stresses and Solid-State Shrinkage after Solidificationcitations
- 2022Opportunities Of Physics-Based Multi-Scale Modeling Tools In Assessing Intra-Grain Heterogeneities, Polycrystal Properties And Residual Stresses Of AM Metals
- 2021Micromechanical modeling approach to single track deformation, phase transformation and residual stress evolution during selective laser melting using crystal plasticitycitations
- 2019Properties of soft magnetic Fe-Co-V alloy produced by laser powder bed fusioncitations
- 2019Topology optimized soft magnetic cores by laser powder bed fusion
- 2019CRM free hard metals for high abrasive wear applications
- 2018Mechanical and magnetic properties of Fe-Co-V alloy produced by Selective Laser Melting
- 2018Micromechanical modeling of titanium carbide composites with high work hardening metal matrix
- 2017Soft magnetic alloys for selective laser melting
- 2017High wear resistance TiC metal matrix composites based on reactive hot pressing
- 2017Microstructural and mechanical characterization of ODS alloy produced by surface oxidation method
- 2017Feasibility of selective laser melting process in manufacturing of digital spare parts
- 2017Circular Economy Concept In Additive Manufacturing
- 2017Nanostructural WC-Co coatings by utilizing novel powder manufacturing route using water soluble raw materials
- 2016Preparing nano structural WC-Co powders by utilizing soluble raw materials by spray drying and synthesis method
- 2016Synthesis of nano structural Cr 3 C 2 powders from water soluble precursors
- 2016Component scale process model for metal additive manufacturing
- 2016Manufacturing of topology optimized soft magnetic core through 3D printing
- 2016Reaction heat potential utilization in mullite and spinel based ceramics synthesis and sintering
- 2016Synthesis of nano structural Cr3C2 powders from water soluble precursors
- 2015Characterization of Gas Atomized Ni-Mn-Ga powderscitations
- 2015Novel titanium carbide based hard metal alternative for traditional WC-Co
- 2012Microstructure analysis and damage patterns of thermally cycled Ti-49.7Ni (at.%) wirescitations
- 2011Adjustable epoxy based vibration damping material (CLD) with an extremely high loss factor
- 2011Determination and validation of viscoelastic material model for an epoxy compound in constrained layer damping applications
- 2011Adaptive wire rope isolator
- 2011R-phase actuated SMA composites in adaptive wind turbine blade trailing edge
- 2009Shape Control of a FRP Airfoil Structure Using SMA-actuators and Optical Fiber Sensorscitations
- 2009Model-Based Control of SMA Actuators with a Recurrent Neural Network in the Shape Control of an Airfoilcitations
- 2007SULAWIND - Intelligent Wind Turbine Components and Structures
- 2007Semi-active vibration control based on shape memory alloy actuators:Analysis and experimental testing
- 2007Dynamic compression testing of a tunable spring element consisting of a magnetorheological elastomercitations
- 2007Semi-active vibration control based on shape memory alloy actuators
- 2007InMAR - Intelligent Materials for Active Noise Reduction
- 2006Fe-Cr-X alloys:Steels with enhanced damping capacity
- 2006Elastomer isolator with an SMA actuator for vibration control
- 2006Fe-Cr-X alloys
- 2005Damping properties of steel compounds
- 2003Preliminary test on a MRE device
- 2003Processing and properties of metal matrix composites synthesized by SHScitations
- 2003Method for the manufacture of a metal matrix composite, and a metal matrix composite
Places of action
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document
R-phase actuated SMA composites in adaptive wind turbine blade trailing edge
Abstract
There is an interest of doubling or quadrupling the ratedpower of wind turbines from the present maximum of about5 MW,especially for offshore applications. This increases theblade length to about 80 or 100 m. The growth in size ofblades is notfeasible using the present technologies and materials.Also the slenderness of wind turbines leads to increasedimportance ofvibration and fatigue control of blades and supportingstructures. These increasing requirements call for newstructural concepts and advanced materials and also formore adaptive solutions. Better control of the turbinesuch as advanced blade pitch control or shape control ortheir combination has to be developed and utilized. Theone key issue is reduction of the fatigue loads of bladesand that way increasing the life of the structure andenabling use of the turbine at higher wind speeds andgusty winds, which would increase the power production.Shape memory alloy (SMA) composites as morphingstructures have been studied widely. In this studypossibilities of SMA composites based on utilization ofpre-martensitic R-phase transformation were determined.Special treatments to achieve pure R-phase transformationwere developed and thermo-mechanical properties of thewires were determined. R-phase actuation has been foundto offer several beneficial features compared traditionalaustenitemartensite transformation. The studies revealedthat hysteresis can be remarkably decreased, leading tohigher operating frequency at lower temperatures. One ofthe most important features of R-phase actuated wires istheir superior resistance against functional fatiguecompared to traditional SMA wires. A novel manufacturingroute for SMA composites was developed.Laminate and actuator test structures were designed by FEmodeling. R-phase actuated SMA composites weredemonstrated atwind turbine blade adaptive trailing edge. In laboratorycondition 5° change in camber of trailing edge wasachieved when wires were heated up 60 °C. Effect of windspeed on the achieved shape changes was studied bypreliminary wind tunnel tests.