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L.D.I. van Vliet
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2 records found
1
Master thesis
(2026)
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L.D.I. van Vliet, B. Çağlar, Bianca Giovanardi, PhD, S.R. Turteltaub, L. P. Mikkelsen, Henrik Myhre Jensen
Modern wind turbines use carbon fiber pultruded composites in their blades to carry the large loads and limit the deflection. These pultruded profiles are either in tension or compression. Composites perform worse in compression than in tension, and this is thus the case pultruded composites are designed for. Some aspects of carbon fiber pultruded composites that can influence the compressive strength is the cross-sectional geometry and the matrix material.
The aim of this research is to investigate how different fiber cross-sections affect the change in compressive strength of the composite it is embedded in.
The effect of cross-sectional shape is investigated using physical tests on fibers with varying geometry, and simulation tools. The effect of the matrix material is investigated using simulation tools.
These tests and simulations resulted in showing that simulated Representative Volume Elements (RVE) with fibers obstructing a possible kink band path have higher compressive strengths. Additionally, fibers with higher area moments of inertia have higher simulated compressive strengths as well. Matrices with higher stiffnesses and, more importantly, higher yield stresses, also make carbon fiber pultruded composites perform better in compression.
This leads to the conclusion that fiber geometry and RVE packing type are the main factors on how cross-sectional geometry effects a pultruded composite performing in compression. The matrix stiffness and yield strength are also essential components of the compressive performance of the pultruded composite. ...
The aim of this research is to investigate how different fiber cross-sections affect the change in compressive strength of the composite it is embedded in.
The effect of cross-sectional shape is investigated using physical tests on fibers with varying geometry, and simulation tools. The effect of the matrix material is investigated using simulation tools.
These tests and simulations resulted in showing that simulated Representative Volume Elements (RVE) with fibers obstructing a possible kink band path have higher compressive strengths. Additionally, fibers with higher area moments of inertia have higher simulated compressive strengths as well. Matrices with higher stiffnesses and, more importantly, higher yield stresses, also make carbon fiber pultruded composites perform better in compression.
This leads to the conclusion that fiber geometry and RVE packing type are the main factors on how cross-sectional geometry effects a pultruded composite performing in compression. The matrix stiffness and yield strength are also essential components of the compressive performance of the pultruded composite. ...
Modern wind turbines use carbon fiber pultruded composites in their blades to carry the large loads and limit the deflection. These pultruded profiles are either in tension or compression. Composites perform worse in compression than in tension, and this is thus the case pultruded composites are designed for. Some aspects of carbon fiber pultruded composites that can influence the compressive strength is the cross-sectional geometry and the matrix material.
The aim of this research is to investigate how different fiber cross-sections affect the change in compressive strength of the composite it is embedded in.
The effect of cross-sectional shape is investigated using physical tests on fibers with varying geometry, and simulation tools. The effect of the matrix material is investigated using simulation tools.
These tests and simulations resulted in showing that simulated Representative Volume Elements (RVE) with fibers obstructing a possible kink band path have higher compressive strengths. Additionally, fibers with higher area moments of inertia have higher simulated compressive strengths as well. Matrices with higher stiffnesses and, more importantly, higher yield stresses, also make carbon fiber pultruded composites perform better in compression.
This leads to the conclusion that fiber geometry and RVE packing type are the main factors on how cross-sectional geometry effects a pultruded composite performing in compression. The matrix stiffness and yield strength are also essential components of the compressive performance of the pultruded composite.
The aim of this research is to investigate how different fiber cross-sections affect the change in compressive strength of the composite it is embedded in.
The effect of cross-sectional shape is investigated using physical tests on fibers with varying geometry, and simulation tools. The effect of the matrix material is investigated using simulation tools.
These tests and simulations resulted in showing that simulated Representative Volume Elements (RVE) with fibers obstructing a possible kink band path have higher compressive strengths. Additionally, fibers with higher area moments of inertia have higher simulated compressive strengths as well. Matrices with higher stiffnesses and, more importantly, higher yield stresses, also make carbon fiber pultruded composites perform better in compression.
This leads to the conclusion that fiber geometry and RVE packing type are the main factors on how cross-sectional geometry effects a pultruded composite performing in compression. The matrix stiffness and yield strength are also essential components of the compressive performance of the pultruded composite.
Bachelor thesis
(2024)
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T.A.M. Clara, T.Y.A. De Laere, D.G.A. van Ginkel, L.D.I. van Vliet, J.A.A. Bredael, R. Dux, R.M. Leal, J.W.L. Matthe, G. Fernández Nespral Vaz, M. Güell Ybarra, R. Schmehl, O. Cayón, Furkat Yunus
The WaveWings project seeks to harness the synergetic potential of Airborne Wind Energy Systems (AWES) and Wave Energy Converters (WEC) to create a 1 GW deep-offshore renewable energy farm, contributing to the European Union’s net-zero 2050 goals. This report details the design process and outcomes of integrating a Leading-Edge Inflatable (LEI) kite system with a point absorber wave energy converter (WEC). The LEI kite and point absorber generate 2.3 MW and 150 kW of power, respectively. Key trade-offs and design choices were made in selecting the kite, launch system, WEC, and anchoring mechanisms to optimize performance and sustainability. Sustainable design strategies are implemented to reduce the Levelised Cost Of Electricity (LCOE) and Global Warming Potential (GWP). The integration of the airborne and wave energy systems was optimized through simulations to maximize energy absorption and respect synergy requirements. Market and financial analyses indicated that WaveWings project can be competitive on the west coast of Ireland.
...
The WaveWings project seeks to harness the synergetic potential of Airborne Wind Energy Systems (AWES) and Wave Energy Converters (WEC) to create a 1 GW deep-offshore renewable energy farm, contributing to the European Union’s net-zero 2050 goals. This report details the design process and outcomes of integrating a Leading-Edge Inflatable (LEI) kite system with a point absorber wave energy converter (WEC). The LEI kite and point absorber generate 2.3 MW and 150 kW of power, respectively. Key trade-offs and design choices were made in selecting the kite, launch system, WEC, and anchoring mechanisms to optimize performance and sustainability. Sustainable design strategies are implemented to reduce the Levelised Cost Of Electricity (LCOE) and Global Warming Potential (GWP). The integration of the airborne and wave energy systems was optimized through simulations to maximize energy absorption and respect synergy requirements. Market and financial analyses indicated that WaveWings project can be competitive on the west coast of Ireland.