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Experimental Investigation And Process Simulation Of The Compression Molding Process Of Sheet Molding Compound Smc With Local Reinforcements
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Book Synopsis Experimental investigation and process simulation of the compression molding process of Sheet Molding Compound (SMC) with local reinforcements by : Hohberg, Martin
Download or read book Experimental investigation and process simulation of the compression molding process of Sheet Molding Compound (SMC) with local reinforcements written by Hohberg, Martin and published by KIT Scientific Publishing. This book was released on 2022-04-05 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Mesoscale simulation of the mold filling process of Sheet Molding Compound by : Meyer, Nils
Download or read book Mesoscale simulation of the mold filling process of Sheet Molding Compound written by Meyer, Nils and published by KIT Scientific Publishing. This book was released on 2022-07-12 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Experimental investigation of relevant road surface descriptors for tire-road noise measurements on low-absorbing road surfaces by : Pinay, Julien
Download or read book Experimental investigation of relevant road surface descriptors for tire-road noise measurements on low-absorbing road surfaces written by Pinay, Julien and published by KIT Scientific Publishing. This book was released on 2024-01-16 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ihrer Arbeit in der Originalsprache: This work aims at identifying relevant road surface characteristics to mitigate tire-road noise of free-rolling tires using a systematic approach. As using open porous roads is already known as an efficient measure to reduce tire rolling noise, this study will focus on compact road surfaces which have a low acoustic absorption. Measurements on standardized ISO 10844 test tracks and on public roads are used to study the norm's representativity and its completeness.
Book Synopsis Process simulation of wet compression moulding for continuous fibre-reinforced polymers by : Poppe, Christian Timo
Download or read book Process simulation of wet compression moulding for continuous fibre-reinforced polymers written by Poppe, Christian Timo and published by KIT Scientific Publishing. This book was released on 2022-07-18 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Impregnation of stitched continuous carbon fibre textiles by Sheet Moulding Compounds by : Holger Büttemeyer
Download or read book Impregnation of stitched continuous carbon fibre textiles by Sheet Moulding Compounds written by Holger Büttemeyer and published by Logos Verlag Berlin GmbH. This book was released on 2021-10-14 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis deals with the fibre impregnation of a carbon fibre reinforcement by a Sheet Moulding Compound (SMC). In the beginning, the carbon fibre reinforcement has no impregnation. Instead, the impregnation of the carbon fibre is performed by the resin within the SMC material during compression moulding. The combination leads to a Hybrid SMC composite, which is characterized by a high design freedom, good mechanical properties, and high production rates at the same time. The main objective of this study is the development of an analytical impregnation model for Hybrid SMC composites. The impregnation model predicts the final void content with regard to the properties of the semi-finished products and the process implementation. The fibre impregnation is influenced by the viscosity of the SMC material, the processing compression, the permeability, and the thickness of the carbon fibre reinforcement. Among all these parameters, the viscosity is an essential factor for the fibre impregnation, because it is dependent on the temperature and the time. The final impregnation model is developed by an approach of fluid dynamics to track the flow front particles within the SMC material during compression moulding. At the same time, experiments are realized and the void content is determined by using microscopic analysis of the Hybrid SMC composites. The evaluated void contents of the experiments are used to compare the results with the impregnation model. All in all, the investigations have led to an analytical impregnation model with a high accuracy. A deviation of 5% for more than 82% of the specimens was achieved.
Book Synopsis Fiber-dependent injection molding simulation of discontinuous reinforced polymers by : Wittemann, Florian
Download or read book Fiber-dependent injection molding simulation of discontinuous reinforced polymers written by Wittemann, Florian and published by KIT Scientific Publishing. This book was released on 2022-11-18 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Manufacturing-constrained multi-objective optimization of local patch reinforcements for discontinuous fiber reinforced composite parts by : Fengler, Benedikt
Download or read book Manufacturing-constrained multi-objective optimization of local patch reinforcements for discontinuous fiber reinforced composite parts written by Fengler, Benedikt and published by KIT Scientific Publishing. This book was released on 2021-03-31 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Numerical prediction of curing and process-induced distortion of composite structures by : Bernath, Alexander
Download or read book Numerical prediction of curing and process-induced distortion of composite structures written by Bernath, Alexander and published by KIT Scientific Publishing. This book was released on 2021-10-29 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Stochastic Range Estimation Algorithms for Electric Vehicles using Data-Driven Learning Models by : Scheubner, Stefan
Download or read book Stochastic Range Estimation Algorithms for Electric Vehicles using Data-Driven Learning Models written by Scheubner, Stefan and published by KIT Scientific Publishing. This book was released on 2022-06-03 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Measurable Safety of Automated Driving Functions in Commercial Motor Vehicles - Technological and Methodical Approaches by : Elgharbawy, Mohamed
Download or read book Measurable Safety of Automated Driving Functions in Commercial Motor Vehicles - Technological and Methodical Approaches written by Elgharbawy, Mohamed and published by KIT Scientific Publishing. This book was released on 2023-01-13 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the further development of automated driving, the functional performance increases resulting in the need for new and comprehensive testing concepts. This doctoral work aims to enable the transition from quantitative mileage to qualitative test coverage by aggregating the results of both knowledge-based and data-driven test platforms. The validity of the test domain can be extended cost-effectively throughout the software development process to achieve meaningful test termination criteria.
Book Synopsis Trajectory optimization based on recursive B-spline approximation for automated longitudinal control of a battery electric vehicle by : Jauch, Jens
Download or read book Trajectory optimization based on recursive B-spline approximation for automated longitudinal control of a battery electric vehicle written by Jauch, Jens and published by KIT Scientific Publishing. This book was released on 2024-03-01 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work describes a method for weighted least squares approximation of an unbounded number of data points using a B-spline function. The method can shift the bounded B-spline function definition range during run-time. The approximation method is used for optimizing velocity trajectories for an electric vehicle with respect to travel time, comfort and energy consumption. The trajectory optimization method is extended to a driver assistance system for automated vehicle longitudinal control.
Book Synopsis Probabilistic Prediction of Energy Demand and Driving Range for Electric Vehicles with Federated Learning by : Thorgeirsson, Adam Thor
Download or read book Probabilistic Prediction of Energy Demand and Driving Range for Electric Vehicles with Federated Learning written by Thorgeirsson, Adam Thor and published by KIT Scientific Publishing. This book was released on 2024-09-03 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, an extension of the federated averaging algorithm, FedAvg-Gaussian, is applied to train probabilistic neural networks. The performance advantage of probabilistic prediction models is demonstrated and it is shown that federated learning can improve driving range prediction. Using probabilistic predictions, routing and charge planning based on destination attainability can be applied. Furthermore, it is shown that probabilistic predictions lead to reduced travel time.
Book Synopsis AI and IoT Meet Mobile Machines: Towards a Smart Working Site by : Xiang, Yusheng
Download or read book AI and IoT Meet Mobile Machines: Towards a Smart Working Site written by Xiang, Yusheng and published by KIT Scientific Publishing. This book was released on 2022-06-20 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Infrastructure construction is society's cornerstone and economics' catalyst. Therefore, improving mobile machinery's efficiency and reducing their cost of use have enormous economic benefits in the vast and growing construction market. In this thesis, I envision a novel concept smart working site to increase productivity through fleet management from multiple aspects and with Artificial Intelligence (AI) and Internet of Things (IoT).
Book Synopsis Development of a CO2e quantification method and of solutions for reducing the greenhouse gas emissions of construction machines by : Ays, Isabelle Charlotte
Download or read book Development of a CO2e quantification method and of solutions for reducing the greenhouse gas emissions of construction machines written by Ays, Isabelle Charlotte and published by KIT Scientific Publishing. This book was released on 2022-06-27 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work focuses on the development of a quantification method for GHG (CO2e) emissions from construction machines. The method considers CO2e reduction potentials in the time past-present–future, through influencing factors from six pillars: Machine efficiency, process efficiency, energy source, operating efficiency, material efficiency and CCS. In addition, transformation solutions are proposed to reduce GHG emissions from construction machines like liquid methane, fuel cell drive or CCS.
Book Synopsis Road Condition Estimation with Data Mining Methods using Vehicle Based Sensors by : Masino, Johannes
Download or read book Road Condition Estimation with Data Mining Methods using Vehicle Based Sensors written by Masino, Johannes and published by KIT Scientific Publishing. This book was released on 2021-03-31 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work provides novel methods to process inertial sensor and acoustic sensor data for road condition estimation and monitoring with application in vehicles, which serve as sensor platforms. Furthermore, methods are introduced to combine the results from various vehicles for a more reliable estimation.
Download or read book Engineered Materials Abstracts written by and published by . This book was released on 1994-04 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heat Transfer in Polymer Composite Materials by : Nicolas Boyard
Download or read book Heat Transfer in Polymer Composite Materials written by Nicolas Boyard and published by John Wiley & Sons. This book was released on 2016-03-28 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses general information, good practices and examples about thermo-physical properties, thermo-kinetic and thermo-mechanical couplings, instrumentation in thermal science, thermal optimization and infrared radiation.