Simulation of the thermoforming process of UD fiber-reinforced thermoplastic tape laminates PDF Download
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Author: Dörr, Dominik
Publisher: KIT Scientific Publishing
ISBN: 3731509989
Category : Technology & Engineering
Languages : en
Pages : 334
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Book Description
In this work, initially, the requirements on a simulation model of the non-isothermal stamp forming process of unidirectional fiber-reinforced, and thermoplastic tape laminates are investigated experimentally. On this basis, different isothermal as well as a fully coupled thermomechanical simulation model under consideration of the crystallization kinetics are developed. For validation, a complex shaped geometry is simulated and compared to experimental forming results.
Author: Dörr, Dominik
Publisher: KIT Scientific Publishing
ISBN: 3731509989
Category : Technology & Engineering
Languages : en
Pages : 334
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Book Description
In this work, initially, the requirements on a simulation model of the non-isothermal stamp forming process of unidirectional fiber-reinforced, and thermoplastic tape laminates are investigated experimentally. On this basis, different isothermal as well as a fully coupled thermomechanical simulation model under consideration of the crystallization kinetics are developed. For validation, a complex shaped geometry is simulated and compared to experimental forming results.
Author: Poppe, Christian Timo
Publisher: KIT Scientific Publishing
ISBN: 3731511908
Category : Technology & Engineering
Languages : en
Pages : 332
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Book Description
Interdisciplinary development approaches for system-efficient lightweight design unite a comprehensive understanding of materials, processes and methods. This applies particularly to continuous fibre-reinforced plastics (CoFRPs), which offer high weight-specific material properties and enable load path-optimised designs. This thesis is dedicated to understanding and modelling Wet Compression Moulding (WCM) to facilitate large-volume production of CoFRP structural components.
Author: Wittemann, Florian
Publisher: KIT Scientific Publishing
ISBN: 3731512173
Category : Technology & Engineering
Languages : en
Pages : 180
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Book Description
This work presents novel simulation techniques for injection molding of fiber reinforced polymers. These include approaches for anisotropic flow modeling, hydrodynamic forces from fluid on fibers, contact forces between fibers, a novel fiber breakage modeling approach and anisotropic warpage analysis. Due to the coupling of fiber breakage and anisotropic flow modeling, the fiber breakage directly influences the modeled cavity pressure, which is validated with experimental data.
Author: Meyer, Nils
Publisher: KIT Scientific Publishing
ISBN: 3731511738
Category : Technology & Engineering
Languages : en
Pages : 292
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Book Description
Sheet Molding Compounds (SMC) are discontinuous fiber reinforced composites that are widely applied due to their ability to realize composite parts with long fibers at low cost. A novel Direct Bundle Simulation (DBS) method is proposed in this work to enable a direct simulation at component scale utilizing the observation that fiber bundles often remain in a bundled configuration during SMC compression molding.
Author: Hohberg, Martin
Publisher: KIT Scientific Publishing
ISBN: 3731510073
Category : Technology & Engineering
Languages : en
Pages : 216
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Book Description
In this book, a new three-dimensional approach for the process simulation of SMC is developed. This approach takes into account both, the core layer that is dominated by the extensional viscosity and the thin lubrication layer. In order to transfer the information from the process to the structure simulation, a CAE chain is further developed. In addition, a new rheological tool is developed to analyze flow behavior experimentally and to provide the required material parameters.
Author: Naake, Dominik Robert
Publisher: KIT Scientific Publishing
ISBN: 3731510057
Category : Technology & Engineering
Languages : en
Pages : 304
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Book Description
A weave reinforced composite material with a thermoplastic matrix is investigated by using a multiscale chain to predict the macroscopic material behavior. A large-strain framework for constitutive modeling with focus on material non-linearities, i.e. plasticity and damage is defined. The ability of the geometric and constitutive models to predict the deformation and failure behavior is demonstrated by means of selected examples.
Author: Gurminder Singh
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3111067769
Category : Science
Languages : en
Pages : 373
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Book Description
In today's society researchers are more focused on cleaner materials production for environmental sustainability. This approach aims at reducing waste and the development of materials with enhanced properties and functionality. This book focuses on optimizing manufacturing processes for sustainable composite materials. It discusses optimum utilization of resources by using minimum effort to save cost and energy.
Author: Fengler, Benedikt
Publisher: KIT Scientific Publishing
ISBN: 3731510065
Category : Technology & Engineering
Languages : en
Pages : 200
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Book Description
In this work, contributes to the optimization of local continuous fiber reinforcement patches, under consideration of manufacturing constraints. This approach requires specific optimization strategies. Therefore, an multi-objective optimization strategy for the placement of local reinforcement patches, under consideration of manufacturing constraints, has been developed. During the multi objective optimization, structural and process related objectives are considered.
Author: Bernath, Alexander
Publisher: KIT Scientific Publishing
ISBN: 3731510634
Category : Technology & Engineering
Languages : en
Pages : 294
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Book Description
Fiber-reinforced materials offer a huge potential for lightweight design of load-bearing structures. However, high-volume production of such parts is still a challenge in terms of cost efficiency and competitiveness. Numerical process simulation can be used to analyze underlying mechanisms and to find a suitable process design. In this study, the curing process of the resin is investigated with regard to its influence on RTM mold filling and process-induced distortion.
Author: Scheubner, Stefan
Publisher: KIT Scientific Publishing
ISBN: 3731511665
Category : Technology & Engineering
Languages : en
Pages : 190
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Book Description
This work aims at improving the energy consumption forecast of electric vehicles by enhancing the prediction with a notion of uncertainty. The algorithm itself learns from driver and traffic data in a training set to generate accurate, driver-individual energy consumption forecasts.
