Integrated Analysis Of Liquid Composite Molding Lcm Processes

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Integrated Analysis of Liquid Composite Molding (LCM) Processes

Author : Liqun Xu
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (569 download)

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Book Synopsis Integrated Analysis of Liquid Composite Molding (LCM) Processes by : Liqun Xu

Download or read book Integrated Analysis of Liquid Composite Molding (LCM) Processes written by Liqun Xu and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Liquid composite molding (LCM) processes have been proven to be cost effective for producing lightweight and high-performance composites. In this study, an integrated analysis was carried out to study two processes in this category, including the resin injection pultrusion (RIP) process and the vacuum assisted resin transfer molding (VARTM) process. RIP has attracted much attention in the last decade, due to its great potential for producing composite-profile with constant cross-sectional area, high productivity, low cost, and zero volatile organic compounds (VOC) emissions. In this study, a friction coefficient model and a volume change model of a vinyl ester resin were developed. An analytical model was developed to predict the resistance force in the injection die. The volume change model and the friction coefficient model, combined with the temperature and resin conversion profiles along the die, were used to predict the resistance force in the heating die. The comparison between the analytical and numerical results with the experimental data showed that the models and the simulation tool developed in this study are capable of predicting the pulling force in the entire die with good agreement. Recently, because of the growing interest of low temperature manufacturing processes such as VARTM, low shrinkage molding compounds with the ability to be processed at low temperature have attracted considerable interest from the composite industry. However, most low profile additives (LPAs) do not work well for the shrinkage control of unsaturated polyester (UP) in low-temperature processes because of the lack of strong temperature changes during molding. In this work, a novel nanotechnology was developed to achieve zero volume shrinkage of low profile UP resin system cured at room temperature by controlling the selectivity of nanoclay during reaction-induced phase separation. TEM observation of the cured sample showed that nearly all of the nanoclay platelets resided in the LPA-rich phase. Nanoclay presence increased the reaction rate in the LPA-rich phase because nanoclay could act as a co-promoter in the UP curing system, which could result in the earlier microvoid formation and better shrinkage control. The resulting VARTM panels with improved volume shrinkage control showed better surface quality improvement.

Integration of Composite Part Design and Processing Simulation in Liquid Composite Molding

Author : Jiayin Wang
Publisher :
ISBN 13 : 9780355466287
Total Pages : 194 pages
Book Rating : 4.4/5 (662 download)

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Book Synopsis Integration of Composite Part Design and Processing Simulation in Liquid Composite Molding by : Jiayin Wang

Download or read book Integration of Composite Part Design and Processing Simulation in Liquid Composite Molding written by Jiayin Wang and published by . This book was released on 2017 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid Composite Molding (LCM) processes encompass a large family of composite processing methods that use a pressure difference to drive a liquid resin into a mold to saturate all the empty spaces between fibers of a stationary preform. The success in such net shape manufacturing processes is strongly correlated with the part geometry and design. Coupling LCM processing simulation tools with part design could make the manufacturing of composites more efficient. The aim of this dissertation is to present models, methodologies and frameworks to integrate the composite process simulation within the composite part design cycle. ☐ To bridge the gap between the composite process simulations with the part design, one needs to first automate the processing parameters’ selection and optimization in mold filling simulation packages. Various effective optimizers are developed to find the optimal injection/infusion scheme so that the results returned by the mold filling simulation packages can guide the part design process. ☐ Next, approaches are developed to improve the LCM simulation workflows by combining stochastic models and frameworks with the simulation engine to address possible variability in the process. Such improved simulation methodologies will provide useful feedback to the designer on how to reduce variability in the manufacturing process within the design workspace. ☐ To increase the efficiency of the design-simulation iteration cycle, a fast distance based model is developed to replace time intensive finite element based LCM simulation which makes it possible to provide qualitatively accurate information about the process to part designers in a very short period of time for them to modify the design to accommodate robust processing. This tool is shown to be useful in the initial stages of design when large number of permutations are inevitable. ☐ The methodology and integration framework is exercised to provide general design coupled with simulations solutions for manufacturing of net shaped composite parts and demonstrated with an application that couples the design with optimized process models that account for variability to achieve specific objective such as in wind blade design and manufacturing.

Transport Phenomena in Liquid Composite Molding Processes

Author : João M.P.Q. Delgado
Publisher : Springer
ISBN 13 : 3030127168
Total Pages : 86 pages
Book Rating : 4.0/5 (31 download)

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Book Synopsis Transport Phenomena in Liquid Composite Molding Processes by : João M.P.Q. Delgado

Download or read book Transport Phenomena in Liquid Composite Molding Processes written by João M.P.Q. Delgado and published by Springer. This book was released on 2019-01-29 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides valuable information on polymer composite manufacturing, with a focus on liquid molding processes and the resin transfer molding technique (RTM). It presents and discusses emerging topics related to the foundations, engineering applications, advanced modeling and experiments regarding the RTM process. A valuable resource for engineers, professionals in industry and academics involved in this advanced interdisciplinary field, it also serves as a comprehensive reference book for undergraduate and postgraduate courses.

Analysis of Two-region Flow in Liquid Composite Molding Processes

Author : Jun Ni
Publisher :
ISBN 13 :
Total Pages : 284 pages
Book Rating : 4.:/5 (366 download)

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Book Synopsis Analysis of Two-region Flow in Liquid Composite Molding Processes by : Jun Ni

Download or read book Analysis of Two-region Flow in Liquid Composite Molding Processes written by Jun Ni and published by . This book was released on 1996 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Stochastic Analysis and Optimization of Liquid Composite Molding Processes

Author : Srinivasan K. Padmanabhan
Publisher :
ISBN 13 :
Total Pages : 174 pages
Book Rating : 4.:/5 (422 download)

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Book Synopsis Stochastic Analysis and Optimization of Liquid Composite Molding Processes by : Srinivasan K. Padmanabhan

Download or read book Stochastic Analysis and Optimization of Liquid Composite Molding Processes written by Srinivasan K. Padmanabhan and published by . This book was released on 1999 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Liquid Composite Molding

Author : Richard S. Parnas
Publisher : Carl Hanser Verlag GmbH Co KG
ISBN 13 : 3446443029
Total Pages : 172 pages
Book Rating : 4.4/5 (464 download)

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Book Synopsis Liquid Composite Molding by : Richard S. Parnas

Download or read book Liquid Composite Molding written by Richard S. Parnas and published by Carl Hanser Verlag GmbH Co KG. This book was released on 2014-11-06 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid composite molding is a family of versatile methods to manufacture composite materials in the automotive, aerospace, railroad, marine, and defense industries. This well integrated text offers engineering students and industrial practitioners an expertly organized guide to the engineering principles and manufacturing issues critical to successful molding operations. Liquid Composite Molding is an interdisciplinary treatment of transport phenomena in porous media, textile and automation technology to construct the porous reinforcement, and computer aided engineering for design optimization. The included CD ROM contains a permeability database and a finite element flow simulator for process design. Problems at the end of each chapter expand and clarify the most important topics.

Nanotechnology Commercialization

Author : Thomas O. Mensah
Publisher : John Wiley & Sons
ISBN 13 : 1119371740
Total Pages : 446 pages
Book Rating : 4.1/5 (193 download)

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Book Synopsis Nanotechnology Commercialization by : Thomas O. Mensah

Download or read book Nanotechnology Commercialization written by Thomas O. Mensah and published by John Wiley & Sons. This book was released on 2017-10-20 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: A fascinating and informative look at state-of-the-art nanotechnology research, worldwide, and its vast commercial potential Nanotechnology Commercialization: Manufacturing Processes and Products presents a detailed look at the state of the art in nanotechnology and explores key issues that must still be addressed in order to successfully commercialize that vital technology. Written by a team of distinguished experts in the field, it covers a range of applications notably: military, space, and commercial transport applications, as well as applications for missiles, aircraft, aerospace, and commercial transport systems. The drive to advance the frontiers of nanotechnology has become a major global initiative with profound economic, military, and environmental implications. Nanotechnology has tremendous commercial and economic implications with a projected $ 1.2 trillion-dollar global market. This book describes current research in the field and details its commercial potential—from work bench to market. Examines the state of the art in nanotechnology and explores key issues surrounding its commercialization Takes a real-world approach, with chapters written from a practical viewpoint, detailing the latest research and considering its potential commercial and defense applications Presents the current research and proposed applications of nanotechnology in such a way as to stimulate further research and development of new applications Written by an all-star team of experts, including pioneer patent-holders and award-winning researchers in nanotechnology The major challenge currently faced by researchers in nanotechnology is successfully transitioning laboratory research into viable commercial products for the 21st century. Written for professionals across an array of research and engineering disciplines, Nanotechnology Commercialization: Manufacturing Processes and Products does much to help them bridge the gap between lab and marketplace.

Liquid Moulding Technologies

Author : C D Rudd
Publisher : Elsevier
ISBN 13 : 1845695445
Total Pages : 476 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Liquid Moulding Technologies by : C D Rudd

Download or read book Liquid Moulding Technologies written by C D Rudd and published by Elsevier. This book was released on 1997-01-01 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid moulding technologies such as RTM and SRIM are increasingly used for manufacturing composites in a variety of industries. Most interest stems from the automotive industry in the continuing search for weight savings, manufacturing economies and vehicle refinement.Liquid Moulding Technologies provides a unique insight into the development and use of such processes with a comprehensive description of the material, process variants, equipment, control strategies and tooling techniques used. Procedures for materials characterisation, preform and mould design are also described and the text is augmented by a number of case studies for prototype and production parts.This book is an invaluable source for both industrial moulders and those working in research and development.

Manufacturing Techniques for Polymer Matrix Composites (PMCs)

Author : Suresh G Advani
Publisher : Elsevier
ISBN 13 : 0857096257
Total Pages : 512 pages
Book Rating : 4.8/5 (57 download)

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Book Synopsis Manufacturing Techniques for Polymer Matrix Composites (PMCs) by : Suresh G Advani

Download or read book Manufacturing Techniques for Polymer Matrix Composites (PMCs) written by Suresh G Advani and published by Elsevier. This book was released on 2012-07-18 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer matrix composites are used extensively across a wide range of industries, making the design and development of effective manufacturing processes of great importance. Manufacturing techniques for polymer matrix composites (PMCs) provides an authoritative review of the different technologies employed in the manufacture of this class of composite.Following an introduction to composites and manufacturing processes, part one reviews the manufacturing of short fiber and nanoparticle based polymer matrix composites, with injection and compression molding examined in depth. Thermoplastic processing is the focus of part two. Sheet forming, fabric thermostamping, filament winding and continuous fiber reinforced profiles are investigated. Part three reviews thermoset processing. A survey of resin transfer molding follows, including vacuum-assisted and compression resin transfer molding. The pultrusion process is then considered, before the book concludes with an investigation into autoclave and out-of-autoclave curing processes in polymer matrix composites.With its distinguished editors and international team of expert contributors, Manufacturing techniques for polymer matrix composites (PMCs) is an essential guide for engineers and scientists working in the field of polymer matrix composites. - Provides an authoritative review of the different technologies employed in the manufacture of polymer matrix composites - Reviews the manufacturing of short fiber and nanoparticle-based polymer matrix composites, with injection and compression molding examined in depth - Examines thermoplastic processing, sheet forming, fabric thermostamping, filament winding and continuous fiber reinforced profiles

Blast Protection of Civil Infrastructures and Vehicles Using Composites

Author : Nasim Uddin
Publisher : Elsevier
ISBN 13 : 1845698037
Total Pages : 448 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Blast Protection of Civil Infrastructures and Vehicles Using Composites by : Nasim Uddin

Download or read book Blast Protection of Civil Infrastructures and Vehicles Using Composites written by Nasim Uddin and published by Elsevier. This book was released on 2010-03-12 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the upsurge in terrorism in recent years and the possibility of accidental blast threats, there is growing interest in manufacturing blast 'hardened' structures and retrofitting blast mitigation materials to existing structures. Composites provide the ideal material for blast protection as they can be engineered to give different levels of protection by varying the reinforcements and matrices.Part one discusses general technical issues with chapters on topics such as blast threats and types of blast damage, processing polymer matrix composites for blast protection, standards and specifications for composite blast protection materials, high energy absorbing composite materials for blast resistant design, modelling the blast response of hybrid laminated composite plates and the response of composite panels to blast wave pressure loadings. Part two reviews applications including ceramic matrix composites for ballistic protection of vehicles and personnel, using composites to protect military vehicles from mine blasts, blast protection of buildings using FRP matrix composites, using composites in blast resistant walls for offshore, naval and defence related structures, using composites to improve the blast resistance of columns in buildings, retrofitting using fibre reinforced polymer composites for blast protection of buildings and retrofitting to improve the blast response of concrete masonry walls.With its distinguished editor and team of expert contributors, Blast protection of civil infrastructures and vehicles using composites is a standard reference for all those concerned with protecting structures from the effects of blasts in both the civil and military sectors. - Reviews the role of composites in blast protection with an examination of technical issues, applications of composites and ceramic matrix composites - Presents numerical examples of simplified blast load computation and an overview of the basics of high explosives includes important properties and physical forms - Varying applications of composites for protection are explored including military and non-military vehicles and increased resistance in building columns and masonry walls

Analysis and Testing of a Vibration-assisted Liquid Composite Molding Process

Author : Bakhtyar S. Baig
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.:/5 (368 download)

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Book Synopsis Analysis and Testing of a Vibration-assisted Liquid Composite Molding Process by : Bakhtyar S. Baig

Download or read book Analysis and Testing of a Vibration-assisted Liquid Composite Molding Process written by Bakhtyar S. Baig and published by . This book was released on 1996 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Heat Transfer in Polymer Composite Materials

Author : Nicolas Boyard
Publisher : John Wiley & Sons
ISBN 13 : 1848217617
Total Pages : 464 pages
Book Rating : 4.8/5 (482 download)

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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.

Process Modeling in Composites Manufacturing

Author : Suresh G. Advani
Publisher : CRC Press
ISBN 13 : 1466580569
Total Pages : 628 pages
Book Rating : 4.4/5 (665 download)

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Book Synopsis Process Modeling in Composites Manufacturing by : Suresh G. Advani

Download or read book Process Modeling in Composites Manufacturing written by Suresh G. Advani and published by CRC Press. This book was released on 2010-07-14 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a wealth of literature on modeling and simulation of polymer composite manufacturing processes. However, existing books neglect to provide a systematic explanation of how to formulate and apply science-based models in polymer composite manufacturing processes. Process Modeling in Composites Manufacturing, Second Edition provides tangible m

Advances in Composites Manufacturing and Process Design

Author : Philippe Boisse
Publisher : Woodhead Publishing
ISBN 13 : 1782423206
Total Pages : 493 pages
Book Rating : 4.7/5 (824 download)

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Book Synopsis Advances in Composites Manufacturing and Process Design by : Philippe Boisse

Download or read book Advances in Composites Manufacturing and Process Design written by Philippe Boisse and published by Woodhead Publishing. This book was released on 2015-07-29 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: The manufacturing processes of composite materials are numerous and often complex. Continuous research into the subject area has made it hugely relevant with new advances enriching our understanding and helping us overcome design and manufacturing challenges. Advances in Composites Manufacturing and Process Design provides comprehensive coverage of all processing techniques in the field with a strong emphasis on recent advances, modeling and simulation of the design process. Part One reviews the advances in composite manufacturing processes and includes detailed coverage of braiding, knitting, weaving, fibre placement, draping, machining and drilling, and 3D composite processes. There are also highly informative chapters on thermoplastic and ceramic composite manufacturing processes, and repairing composites. The mechanical behaviour of reinforcements and the numerical simulation of composite manufacturing processes are examined in Part Two. Chapters examine the properties and behaviour of textile reinforcements and resins. The final chapters of the book investigate finite element analysis of composite forming, numerical simulation of flow processes, pultrusion processes and modeling of chemical vapour infiltration processes. - Outlines the advances in the different methods of composite manufacturing processes - Provides extensive information on the thermo-mechanical behavior of reinforcements and composite prepregs - Reviews numerical simulations of forming and flow processes, as well as pultrusion processes and modeling chemical vapor infiltration

Simulation of Liquid Composite Moulding Processes with Deformable Tooling

Author : Jamie Gregor Timms
Publisher :
ISBN 13 :
Total Pages : 186 pages
Book Rating : 4.:/5 (862 download)

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Book Synopsis Simulation of Liquid Composite Moulding Processes with Deformable Tooling by : Jamie Gregor Timms

Download or read book Simulation of Liquid Composite Moulding Processes with Deformable Tooling written by Jamie Gregor Timms and published by . This book was released on 2013 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the development, implementation, and validation of a model and numerical simulation for Liquid Composite Moulding (LCM) processes with deformable tooling. LCM is an important and growing family of processes used to produce composite products in a variety of industries, including the automotive, marine, aerospace, and energy sectors. Its flexibility in terms of production scale, part quality, and setup cost has enabled it to supplant traditional fabrication methods for both high and low end applications. However, if this trend is to continue despite the rising complexity and scale of these applications, a more sophisticated approach to process design is needed. An important contribution in this area has been the development of process simulation tools, which find use in both academic and commercial settings. These tools enable improved and cheaper process design and troubleshooting through predictions of important parameters such as fill times, resin flow patterns, and void formation. Although all LCM processes employ closed moulds, the construction and mechanical properties of those moulds range from rigid tools to thin films. The RTM Light (LRTM) process sits between these two extremes, replacing one rigid mould half with a lightweight, semi-rigid component. The present work forms the first comprehensive treatment of flexible mould structures in LCM process simulation. A process model and numerical simulation has been developed that can accommodate rigid, semi-rigid, and fully flexible mould types within a single framework, and thus represents a generic approach to LCM process simulation with regard to mould construction. The model and simulation capture the coupled interactions between resin flow, preform deformation and mould deflection that occur prior to, during, and after the resin injection stage. From a modelling and solution perspective, RTM Light is similar to the fluid-structure interaction (FSI) class of problems, where in this case the fluid is a saturating deformable porous medium and the structure is a compliant mould. The modelling and numerical work is supplemented by an experimental study of the RTM Light process, which investigates the effect of fill mode, mould construction, and preform composition on critical processing parameters. The experimental data are in good agreement with simulated results, which suggests the approach provides accurate predictions of the behaviour in deformable tooling LCM processes, and can therefore form a sound basis for continued research and development of these processes.

Process simulation of wet compression moulding for continuous fibre-reinforced polymers

Author : Poppe, Christian Timo
Publisher : KIT Scientific Publishing
ISBN 13 : 3731511908
Total Pages : 332 pages
Book Rating : 4.7/5 (315 download)

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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.

Polymer Matrix Composites and Technology

Author : Ru-Min Wang
Publisher : Elsevier
ISBN 13 : 0857092227
Total Pages : 570 pages
Book Rating : 4.8/5 (57 download)

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Book Synopsis Polymer Matrix Composites and Technology by : Ru-Min Wang

Download or read book Polymer Matrix Composites and Technology written by Ru-Min Wang and published by Elsevier. This book was released on 2011-07-14 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: Given such properties as low density and high strength, polymer matrix composites have become a widely used material in the aerospace and other industries. Polymer matrix composites and technology provides a helpful overview of these materials, their processing and performance.After an introductory chapter, part one reviews the main reinforcement and matrix materials used as well as the nature of the interface between them. Part two discusses forming and molding technologies for polymer matrix composites. The final part of the book covers key aspects of performance, including tensile, compression, shear and bending properties as well as impact, fatigue and creep behaviour.Polymer matrix composites and technology provides both students and those in industry with a valuable introduction to and overview of this important class of materials. - Provides a helpful overview of these materials, their processing and performance incorporating naming and classification of composite materials - Reviews the main reinforcement and matrix materials used as well as the nature of the interface between them including damage mechanisms - Discusses forming and molding technologies for polymer matrix composites outlining various techniques and technologies