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Author : Mischell Letson
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Computer Modeling of the Resin Transfer Molding Process written by Mischell Letson and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Krishna Mohan Chittajallu
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.:/5 (568 download)
Download or read book Computational Modeling of the Vacuum Assisted Resin Transfer Molding (VARTM) Process written by Krishna Mohan Chittajallu and published by . This book was released on 2004 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. V. Mohan
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (617 download)
Download or read book Three-dimensional Resin Transfer Molding Process written by R. V. Mohan and published by . This book was released on 1996 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : T. Kruckenberg
Publisher : Springer Science & Business Media
ISBN 13 : 9401144370
Total Pages : 540 pages
Book Rating : 4.4/5 (11 download)
Download or read book Resin Transfer Moulding for Aerospace Structures written by T. Kruckenberg and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Resin Transfer Moulding and other similar 'liquid moulding' manufacturing methods have been used to make non-structural composites for the last 35 years. However, in the last eight years these methods have become the subject of enormous interest by aerospace manufacturing companies. Resin Transfer Moulding for Aerospace Structures describes all aspects of Resin Transfer Moulding (RTM) for aerospace structures. Written by an international team of experts, from both industry and academia, it is a comprehensive work providing complete and detailed information on the process of RTM from theoretical modelling to practical experience. With subjects including manufacturing, tooling, fabric design and flow modelling all covered, this book is an invaluable up-to-the-minute reference source which provides the reader with a good understanding of RTM and its possible uses, especially for high performance applications. Resin Transfer Moulding for Aerospace Structures is an ideal guide for those in the aerospace and related industries, who want to understand and utilize RTM, as well as those directly involved in the RTM industry.
Author :
Publisher :
ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.:/5 (318 download)
Download or read book Computer Modeling in Engineering & Sciences written by and published by . This book was released on 2004 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Soo-Jin Park
Publisher : Academic Press
ISBN 13 : 0123750490
Total Pages : 853 pages
Book Rating : 4.1/5 (237 download)
Download or read book Interface Science and Composites written by Soo-Jin Park and published by Academic Press. This book was released on 2011-07-18 with total page 853 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of Interface Science and Composites is to facilitate the manufacture of technological materials with optimized properties on the basis of a comprehensive understanding of the molecular structure of interfaces and their resulting influence on composite materials processes. From the early development of composites of various natures, the optimization of the interface has been of major importance. While there are many reference books available on composites, few deal specifically with the science and mechanics of the interface of materials and composites. Further, many recent advances in composite interfaces are scattered across the literature and are here assembled in a readily accessible form, bringing together recent developments in the field, both from the materials science and mechanics perspective, in a single convenient volume. The central theme of the book is tailoring the interface science of composites to optimize the basic physical principles rather than on the use of materials and the mechanical performance and structural integrity of composites with enhanced strength/stiffness and fracture toughness (or specific fracture resistance). It also deals mainly with interfaces in advanced composites made from high-performance fibers, such as glass, carbon, aramid, and some inorganic fibers, and matrix materials encompassing polymers, carbon, metals/alloys, and ceramics. Includes chapter on the development of a nanolevel dispersion of graphene particles in a polymer matrix Focus on tailoring the interface science of composites to optimize the basic physical principles Covers mainly interfaces in advanced composites made from high performance fibers
Author : Huamin Zhou
Publisher : John Wiley & Sons
ISBN 13 : 0470602996
Total Pages : 40 pages
Book Rating : 4.4/5 (76 download)
Download or read book Computer Modeling for Injection Molding written by Huamin Zhou and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers a wide range of applications and uses of simulation and modeling techniques in polymer injection molding, filling a noticeable gap in the literature of design, manufacturing, and the use of plastics injection molding. The authors help readers solve problems in the advanced control, simulation, monitoring, and optimization of injection molding processes. The book provides a tool for researchers and engineers to calculate the mold filling, optimization of processing control, and quality estimation before prototype molding.
Author : João M.P.Q. Delgado
Publisher : Springer
ISBN 13 : 3030127168
Total Pages : 86 pages
Book Rating : 4.0/5 (31 download)
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.
Download or read book MODELLING OF RESIN TRANSFER MOLDING FOR COMPOSITES MANUFACTURING. written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The resin transfer molding (RTM) process, in which a thermosetting resin is injected into a mold cavity preloaded with a porous fiber preform, is a manufacturing method for producing advanced continuous fiber reinforced composite products with complex geometries. Numerical simulation of resin transfer molding process is an often needed tool in manufacturing design, in order to analyze the process before the mold is constructed. In this study, a numerical simulation of the resin impregnation process in RTM of composite materials is performed by using and modifying an existing simulation program. The parts that are molded in the simulations have their planar dimensions much larger than their thicknesses. Therefore, the mold filling process can be modeled as two dimensional by neglecting the variations along the thickness direction. The program is capable of simulating two-dimensional, isothermal impregnation processes through orthotropic fiber preforms of planar but complex geometries. The formulations of the physical problem, used in this study, were taken from the theory of macroscopic flow through anisotropic porous media. The formulated governing equation and boundary conditions are solved in a regular-geometry computational domain by transformation through boundary fitted coordinate system. The discretization for numerical solution is performed by the finite difference method. The current study extends the existing capabilities of the simulation program by enabling the simulation of impregnation through non-homogeneous fiber preforms. Furthermore, the capability to simulate injection from two gates (as opposed to a single gate injection that existed before) is developed and added to the program. Various one-dimensional impregnation simulations (as parametric studies) are performed to assess the influence of process parameters. Results are also compared with analytical solutions and found to be in agreement with them. Two-dimensional impregnation simulations are.
Author : Stefan Caba
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (91 download)
Download or read book Simulation of the Resin Transfer Molding Process (RTM) by Analysis of the Process Fundamentals written by Stefan Caba and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Suresh G Advani
Publisher : Elsevier
ISBN 13 : 0857096257
Total Pages : 512 pages
Book Rating : 4.8/5 (57 download)
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
Author : A. Ya. Malkin
Publisher : John Wiley & Sons
ISBN 13 : 352761494X
Total Pages : 326 pages
Book Rating : 4.5/5 (276 download)
Download or read book Rheokinetics written by A. Ya. Malkin and published by John Wiley & Sons. This book was released on 2008-09-26 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721093656
Total Pages : 168 pages
Book Rating : 4.0/5 (936 download)
Download or read book Resin Film Infusion (Rfi) Process Modeling for Large Transport Aircraft Wing Structures written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-13 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: This investigation completed the verification of a three-dimensional resin transfer molding/resin film infusion (RTM/RFI) process simulation model. The model incorporates resin flow through an anisotropic carbon fiber preform, cure kinetics of the resin, and heat transfer within the preform/tool assembly. The computer model can predict the flow front location, resin pressure distribution, and thermal profiles in the modeled part. The formulation for the flow model is given using the finite element/control volume (FE/CV) technique based on Darcy's Law of creeping flow through a porous media. The FE/CV technique is a numerically efficient method for finding the flow front location and the fluid pressure. The heat transfer model is based on the three-dimensional, transient heat conduction equation, including heat generation. Boundary conditions include specified temperature and convection. The code was designed with a modular approach so the flow and/or the thermal module may be turned on or off as desired. Both models are solved sequentially in a quasi-steady state fashion. A mesh refinement study was completed on a one-element thick model to determine the recommended size of elements that would result in a converged model for a typical RFI analysis. Guidelines are established for checking the convergence of a model, and the recommended element sizes are listed. Several experiments were conducted and computer simulations of the experiments were run to verify the simulation model. Isothermal, non-reacting flow in a T-stiffened section was simulated to verify the flow module. Predicted infiltration times were within 12-20% of measured times. The predicted pressures were approximately 50% of the measured pressures. A study was performed to attempt to explain the difference in pressures. Non-isothermal experiments with a reactive resin were modeled to verify the thermal module and the resin model. Two panels were manufactured using the RFI process. One was a stepped panel
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721944682
Total Pages : 230 pages
Book Rating : 4.9/5 (446 download)
Download or read book Vartm Model Development and Verification written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-27 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this investigation, a comprehensive Vacuum Assisted Resin Transfer Molding (VARTM) process simulation model was developed and verified. The model incorporates resin flow through the preform, compaction and relaxation of the preform, and viscosity and cure kinetics of the resin. The computer model can be used to analyze the resin flow details, track the thickness change of the preform, predict the total infiltration time and final fiber volume fraction of the parts, and determine whether the resin could completely infiltrate and uniformly wet out the preform. Cano, Roberto J. (Technical Monitor) and Dowling, Norman E. Langley Research Center NCC1-01037
Author : Maw-Ling Wang
Publisher : Carl Hanser Verlag GmbH Co KG
ISBN 13 : 1569908850
Total Pages : 624 pages
Book Rating : 4.5/5 (699 download)
Download or read book Molding Simulation: Theory and Practice written by Maw-Ling Wang and published by Carl Hanser Verlag GmbH Co KG. This book was released on 2022-06-07 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical introductory guide to injection molding simulation is aimed at both practicing engineers and students. It will help the reader to innovate and improve part design and molding processes, essential for efficient manufacturing. A user-friendly, case-study-based approach is applied, enhanced by many illustrations in full color. The book is conceptually divided into three parts: Chapters 1–5 introduce the fundamentals of injection molding, and how molding simulation methodology is developed, especially focusing on the effects on molding quality from the rheological, thermodynamic, thermal, mechanical, and kinetic properties of plastics, as well as curing kinetics for thermoset plastics. Chapters 6–11 introduce CAE verification on injection molding including design guidelines of part, gating, runner, and cooling channel systems. Temperature control in hot runner systems, prediction and control of warpage, and fiber orientation are also discussed. Chapters 12–17 introduce research and development in innovative molding, illustrating how CAE is applied to advanced molding techniques, including co-/bi-injection molding, gas-/water-assisted injection molding, foam injection molding, powder injection molding, resin transfer molding (RTM), and integrated circuit (IC) packaging. The 2nd edition contains many updates, including elaboration of material measurement data, connection of Smart Design and Smart Manufacturing, demonstration of the flow-induced fiber orientation effect, implementations of material characterization methods on PU reactive foaming and RTM, studies of dispensing control and creeping behaviors effects on IC underfill process, and much more. Several CAE case study exercises for execution in Moldex3D software are included to allow readers to practice what they have learned and test their understanding.
Author : Hoa
Publisher : CRC Press
ISBN 13 : 9780824795580
Total Pages : 394 pages
Book Rating : 4.7/5 (955 download)
Download or read book Computer-Aided Design of Polymer-Matrix Composite Structures written by Hoa and published by CRC Press. This book was released on 1995-08-03 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work reviews the current computer-aided technology and manufacturing techniques utilized in the design of structures made of polymer-matrix composite materials. Currently-available microcomputer programs based on laminate theory and well-established principles for the prediciton of properties of composite materials are detailed. The benefits and limitations of specific microcomputer programs are compared.
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723483813
Total Pages : 178 pages
Book Rating : 4.4/5 (838 download)
Download or read book Verification of a Three-Dimensional Resin Transfer Molding Process Simulation Model written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-23 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental evidence was obtained to complete the verification of the parameters needed for input to a three-dimensional finite element model simulating the resin flow and cure through an orthotropic fabric preform. The material characterizations completed include resin kinetics and viscosity models, as well as preform permeability and compaction models. The steady-state and advancing front permeability measurement methods are compared. The results indicate that both methods yield similar permeabilities for a plain weave, bi-axial fiberglass fabric. Also, a method to determine principal directions and permeabilities is discussed and results are shown for a multi-axial warp knit preform. The flow of resin through a blade-stiffened preform was modeled and experiments were completed to verify the results. The predicted inlet pressure was approximately 65% of the measured value. A parametric study was performed to explain differences in measured and predicted flow front advancement and inlet pressures. Furthermore, PR-500 epoxy resin/IM7 8HS carbon fabric flat panels were fabricated by the Resin Transfer Molding process. Tests were completed utilizing both perimeter injection and center-port injection as resin inlet boundary conditions. The mold was instrumented with FDEMS sensors, pressure transducers, and thermocouples to monitor the process conditions. Results include a comparison of predicted and measured inlet pressures and flow front position. For the perimeter injection case, the measured inlet pressure and flow front results compared well to the predicted results. The results of the center-port injection case showed that the predicted inlet pressure was approximately 50% of the measured inlet pressure. Also, measured flow front position data did not agree well with the predicted results. Possible reasons for error include fiber deformation at the resin inlet and a lag in FDEMS sensor wet-out due to low mold pressures. Fingerson, John C. and Loos, Alfred C. and ...
