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Contributed
20 records found
Predicting Impact Damage for Carbon Composite Propeller Certification
Using ASTM D7136 and quasi-static testing to predict component impact damage.
During this research, a new approach to predict impact damage was evaluated using the PAL-V Liberty’s propeller blade as the test subject. The purpose of this research was to provide a simple method for impact damage prediction which will support the certification activities of t
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Burst Pressure Prediction of Cord-Rubber Composite Pressure Vessels
Using Global-Local Nonlinear Finite Element Analysis
This project aims at developing a model to predict the damage initiation and propagation in a cylindrical filament-wound cord-rubber structure under internal pressurization using non-linear FEA, and is conducted in cooperation with TANIQ BV, Netherlands.
Cord-reinforced rubbe ...
Cord-reinforced rubbe ...
Model Development and Parameter identification for Automotive Crash Simulation
A Building Block Approach for Laminated Composite Materials
This research investigates the role of how Finite Element simulation models reproduced progressively crushed Glass Fiber Reinforced Polymer (GFRP) parts. The proposed work is motivated by the research questions concerning what are the relevant critical modeling strategies that ac
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Re-designing EX-CORE for large scale automotive manufacturing
Reducing cure cycle times of EX-CORE
EX-CORE, a novel foam core material developed by Donkervoort Automobielen B.V., allows the creation of complexly shaped sandwich structures in a one-shot out-of-autoclave manufacturing process. Products with small tolerances and high surface quality on all surfaces can be obtaine
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Re-designing EX-CORE for large scale automotive manufacturing
Reducing cure cycle times of EX-CORE
EX-CORE, a novel foam core material developed by Donkervoort Automobielen B.V., allows the creation of complexly shaped sandwich structures in a one-shot out-of-autoclave manufacturing process. Products with small tolerances and high surface quality on all surfaces can be obtaine
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Re-designing EX-CORE for large scale automotive manufacturing
Reducing cure cycle times of EX-CORE
EX-CORE, a novel foam core material developed by Donkervoort Automobielen B.V., allows the creation of complexly shaped sandwich structures in a one-shot out-of-autoclave manufacturing process. Products with small tolerances and high surface quality on all surfaces can be obtaine
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Re-designing EX-CORE for large scale automotive manufacturing
Reducing cure cycle times of EX-CORE
EX-CORE, a novel foam core material developed by Donkervoort Automobielen B.V., allows the creation of complexly shaped sandwich structures in a one-shot out-of-autoclave manufacturing process. Products with small tolerances and high surface quality on all surfaces can be obtaine
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Re-designing EX-CORE for large scale automotive manufacturing
Reducing cure cycle times of EX-CORE
EX-CORE, a novel foam core material developed by Donkervoort Automobielen B.V., allows the creation of complexly shaped sandwich structures in a one-shot out-of-autoclave manufacturing process. Products with small tolerances and high surface quality on all surfaces can be obtaine
...
Re-designing EX-CORE for large scale automotive manufacturing
Reducing cure cycle times of EX-CORE
EX-CORE, a novel foam core material developed by Donkervoort Automobielen B.V., allows the creation of complexly shaped sandwich structures in a one-shot out-of-autoclave manufacturing process. Products with small tolerances and high surface quality on all surfaces can be obtaine
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Predicting residual strength of composites after cyclic loading
A numerical, progressive damage analysis based approach
As the demand on new lightweight materials increases due to economic and environmental reasons, fiber reinforced plastics seem an interesting solution. In order to maximize their potential, ways have to be found to introduce damage tolerant designs. To this end, in the present ex
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Saving weight and increasing performance by introducing a composite gangway for the Ampelmann system
Creating a producible and certifiable design
With a changing market for offshore crew transfer systems the current Ampelmann systems are vulnerable for competitors. One of the downsides of the current system is its influence on the ship due to the system mass. A lightweight re-design of the current steel gangway using compo
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Stiffness Design of Laminated Composites
Efficient Conversion of Lamination Parameters into Stacking Sequences
Fibre-reinforced laminated composites are constructed layer-by-layer, allowing their material properties to be easily tailored relative to their isotropic counterparts (metallic alloys). Moreover, a composite structure with variable stiffness (VS) can be made by spatially tailori
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Overcoming the curse of dimensionality in composite laminate blending
A CA-based algorithm for blending laminated composite plates with a large amount of sections
The specific properties of fibre reinforced laminated composite plates can be optimized by tailoring the local stacking sequences to approach the locally required stiffness and strength. Blending enforces continuation of some or all plies from one stacking sequence to another to
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Patching a Fuselage
Application of Straight Fiber Variable Stiffness Laminates in Large Aerospace Structures
Straight fiber variable stiffness laminates use multiple overlapping patches to tailor the fiber orientations in particular regions of the laminate. A novel, automated framework for the design of manufacturable laminate has been developed using different stages. In the first and
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Open-Mold Polyurethane Injection Bonding Process for Modular Exterior Automotive Parts
Experimental Verification of a Subframe for a Carbon Fiber Reinforced Plastic Roof with Class-A Surface Finish
The development and production of carbon fiber reinforced plastic (CFRP) exterior parts with Class-A surface finish in the automotive industry comes with challenges. Next to the structural design of the components, the surface quality as well as the joining technique to the body-
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Ply Drop-off Regions within Thermoset Composites
Influence of ply drop-off regions on the cure-induced residual stress development within thermoset composites manufactured by resin transfer moulding
The aim of this study is to analyse the influence of ply drop-off regions and related parameters on the VARTM cure-induced residual stress generation and related distortions within thick thermoset composites. These parameters include the resin pocket material properties and geome
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Application of C/PEKK UD Tape for Welded Aircraft Movables
A trade study for a single aisle aircraft rudder
In a strive to further improve the performance of Aircraft movables the performance of Carbon fibre PolyEtherKetoneKetone (C/PEKK) on component level was assessed in this study. In this study 3 concepts were designed for a fictitious Next Signle Aisle aircraft (NSA) rudder to per
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Laminate Blending Demonstrator
A buckling experimental campaign of a physical laminate blending demonstrator
The use of fiber-reinforced composites in the aerospace industry has increased over the past couple of decades thanks to their high specific properties. Fiber-reinforced composites also enable engineers to tailor the stacking sequence to satisfy the required stiffness or strength
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Steering towards Stiffness
A preliminary analysis method for local deformations in a yacht structure caused by wave-induced loads
The superyacht industry faces an increasing trend of larger dimensions, more open spaces, larger hull openings and more exotic shapes. This puts more effort on the structural design and especially for superyacht longitudinal stiffness is important, since the luxurious interior an
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Relating Process Parameters to X-Core Properties through Experimental Testing and Modelling
Gaining an In-Depth Understanding of the X-Core Cure Process
Besides building ultra-lightweight sportscars, Donkervoort Automobielen B.V. is developing a novel core material to be applied in complex shaped composite sandwich structures. This material goes by the name of X-Core and has the unique capability of generating the pressure requir
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