Numerical Prediction Of Curing And Process Induced Distortion Of Composite Structures
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Numerical Prediction Of Curing And Process Induced Distortion Of Composite Structures
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Author : Bernath, Alexander
language : en
Publisher: KIT Scientific Publishing
Release Date : 2021-10-29
Numerical Prediction Of Curing And Process Induced Distortion Of Composite Structures written by Bernath, Alexander and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-29 with Technology & Engineering categories.
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.
Residual Stresses In Composite Materials
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Author : Mahmood M. Shokrieh
language : en
Publisher: Woodhead Publishing
Release Date : 2021-06-22
Residual Stresses In Composite Materials written by Mahmood M. Shokrieh and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-22 with Technology & Engineering categories.
The residual stress is a common phenomenon in composite materials. They can either add to or significantly reduce material strength. Because of the increasing demand for high-strength, lightweight materials such as composites and their wide range of applications; it is critical that the residual stresses of composite materials are understood and measured correctly.The first edition of this book consists of thirteen chapters divided into two parts. The first part reviews destructive and non-destructive testing (NDT) techniques for measuring residual stresses. There are also additional chapters on using mathematical (analytical and numerical) methods for the calculation of residual stresses in composite materials. These include the simulated hole drilling method, the slitting/crack compliance method, measuring residual stresses in homogeneous and composite glass materials using photoelastic techniques, and modeling residual stresses in composite materials. The second part of the book discusses measuring residual stresses in different types of composites including polymer and metal matrix composites. The addition of nanoparticles to the matrix of polymeric composites as a new technique for the reduction of residual stresses is also discussed.In the Second Edition of this book, each of the original chapters of the first edition has been fully updated, taking into account the latest research and new developments. There are also five new chapters on the theoretical and experimental studies of residual stresses in the composite integrated circuits; residual stresses in additive manufacturing of polymers and polymer matrix composites; residual stresses in metal matrix composites fabricated by additive manufacturing; the eigenstrain based method for the incremental hole-drilling technique; and the estimation of residual stresses in polymer matrix composites using the digital image correlation technique.Residual Stresses in Composite Materials, Second Edition, provides a unique and comprehensive overview of this important topic and is an invaluable reference text for both academics and professionals working in the mechanical engineering, civil engineering, aerospace, automotive, marine, and sporting industries. - Presents the latest developments on theoretical and experimental studies of residual stresses in composites - Reviews destructive and non-destructive testing (NDT) techniques for measuring residual stresses - Discusses residual stresses in the polymer matrix, metal matrix, and ceramic matrix composites - Considers the addition of nanoparticles to the matrix as a new technique for reduction of residual stresses in polymeric composites - Introduces the latest advancements of research on the residual stresses in additive-manufactured polymer and metal matrix composites
Process Simulation Of Wet Compression Moulding For Continuous Fibre Reinforced Polymers
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Author : Poppe, Christian Timo
language : en
Publisher: KIT Scientific Publishing
Release Date : 2022-07-18
Process Simulation Of Wet Compression Moulding For Continuous Fibre Reinforced Polymers written by Poppe, Christian Timo and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-07-18 with Technology & Engineering categories.
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.
Probabilistic Prediction Of Energy Demand And Driving Range For Electric Vehicles With Federated Learning
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Author : Thorgeirsson, Adam Thor
language : en
Publisher: KIT Scientific Publishing
Release Date : 2024-09-03
Probabilistic Prediction Of Energy Demand And Driving Range For Electric Vehicles With Federated Learning written by Thorgeirsson, Adam Thor and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-09-03 with categories.
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.
Mesoscale Simulation Of The Mold Filling Process Of Sheet Molding Compound
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Author : Meyer, Nils
language : en
Publisher: KIT Scientific Publishing
Release Date : 2022-07-12
Mesoscale Simulation Of The Mold Filling Process Of Sheet Molding Compound written by Meyer, Nils and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-07-12 with Technology & Engineering categories.
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.
Experimental Investigation Of Relevant Road Surface Descriptors For Tire Road Noise Measurements On Low Absorbing Road Surfaces
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Author : Pinay, Julien
language : en
Publisher: KIT Scientific Publishing
Release Date : 2024-01-16
Experimental Investigation Of Relevant Road Surface Descriptors For Tire Road Noise Measurements On Low Absorbing Road Surfaces written by Pinay, Julien and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-01-16 with categories.
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.
Constrained Layer Damping In Hybrid Fibre Metal Elastomer Laminates And Its Tolerance To Damage
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Author : Jackstadt, Alexander
language : en
Publisher: KIT Scientific Publishing
Release Date : 2025-04-07
Constrained Layer Damping In Hybrid Fibre Metal Elastomer Laminates And Its Tolerance To Damage written by Jackstadt, Alexander and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-04-07 with categories.
This work presents experimental, analytical and numerical methods for predicting structural behaviour as well as damping capabilities of hybrid fibre metal elastomer laminates (FMELs), particularly for the assessment and optimisation of constrained-layer damping (CLD) with regard to its tolerance to damage.
Ai And Iot Meet Mobile Machines Towards A Smart Working Site
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Author : Xiang, Yusheng
language : en
Publisher: KIT Scientific Publishing
Release Date : 2022-06-20
Ai And Iot Meet Mobile Machines Towards A Smart Working Site written by Xiang, Yusheng and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-06-20 with Technology & Engineering categories.
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).
Fiber Dependent Injection Molding Simulation Of Discontinuous Reinforced Polymers
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Author : Wittemann, Florian
language : en
Publisher: KIT Scientific Publishing
Release Date : 2022-11-18
Fiber Dependent Injection Molding Simulation Of Discontinuous Reinforced Polymers written by Wittemann, Florian and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-11-18 with Technology & Engineering categories.
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.
Trajectory Optimization Based On Recursive B Spline Approximation For Automated Longitudinal Control Of A Battery Electric Vehicle
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Author : Jauch, Jens
language : en
Publisher: KIT Scientific Publishing
Release Date : 2024-03-01
Trajectory Optimization Based On Recursive B Spline Approximation For Automated Longitudinal Control Of A Battery Electric Vehicle written by Jauch, Jens and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-03-01 with categories.
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.