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Simulation Of The Reaction Injection Mold Filling Process For Thin Non Planar Parts
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Book Synopsis Simulation of the Reaction Injection Mold Filling Process for Thin Non - Planar Parts by : Esther Mei Sun
Download or read book Simulation of the Reaction Injection Mold Filling Process for Thin Non - Planar Parts written by Esther Mei Sun and published by . This book was released on 1993 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Compression Mold Filling Simulation for Thick, Non-planar Parts by : Erwin Wen-Ti Liang
Download or read book Compression Mold Filling Simulation for Thick, Non-planar Parts written by Erwin Wen-Ti Liang and published by . This book was released on 1991 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: A finite element simulation, based on Barone and Caulk's model, is developed to study the compression mold filling over three-dimensional curved surfaces. The effects of charge thickness and surface curvature on the pressure and velocity distributions are examined. In solving the velocity-pressure type equation, an element-based penalty method is implemented into the simulation. This approach shows great accuracy and efficiency as compared with the mixed formulation and a iteration scheme. The full Barone and Caulk model gives accurate predictions of filling patterns for thick charges. In thin charges, a special numerical treatment of the full Barone and Caulk model is developed by adding artificial elongational viscosity. Finite element results show that this model produces better accuracy in velocity as well as velocity gradient compared with the Hele-Shaw formulation, which is used by most molding simulations. A new technique is developed for tracking the moving flow front, using a fixed finite element mesh which models the part geometry. For each time step, temporary elements and temporary nodes are generated within the filled region of any element intersected by the flow front. This scheme allows a smooth representation of the flow front and the imposition of exact boundary conditions on the flow front. Other advantages of this scheme are flexibility in mesh generation and the local mesh refinement. This simulation accurately predicts the flow patterns and knit line locations. The formation and motion of knit lines can easily be tracked by this scheme. A three dimensional shell-like mold cavity is mapped from the physical domain to a planar cavity of uniform thickness in a transformed domain. Two-dimensional flow equations are formulated in the curvilinear coordinate system associated with the mid-surface. The mold filling simulation is performed in the transformed space, as metric tensors and Cristoffel symbols for the surface are provided. The solutions can be mapped back onto the three-dimensional physical space, since all the quantities in the two domains has a one-to-one correspondence.
Book Synopsis Numerical Modeling of Polymer Composites Mold Filling by : Yih-Farn Chen
Download or read book Numerical Modeling of Polymer Composites Mold Filling written by Yih-Farn Chen and published by . This book was released on 1997 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Non-linear Flows in Polymer Mixing Using the Boundry Integral Method by : Bruce Allen Davis
Download or read book Investigation of Non-linear Flows in Polymer Mixing Using the Boundry Integral Method written by Bruce Allen Davis and published by . This book was released on 1995 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Simulation with Graphics for the Injection Molding of Three-dimensional Thin Parts by : Ven-Woei Wang
Download or read book Dynamic Simulation with Graphics for the Injection Molding of Three-dimensional Thin Parts written by Ven-Woei Wang and published by . This book was released on 1985 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transport Phenomena in Food Processing, First International Conference Proceedings by : Selcuk Guceri
Download or read book Transport Phenomena in Food Processing, First International Conference Proceedings written by Selcuk Guceri and published by CRC Press. This book was released on 1992-11-30 with total page 1618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulation of the Filling and Curing Stages in Reaction Injection Moulding by : Rui Igreja
Download or read book Numerical Simulation of the Filling and Curing Stages in Reaction Injection Moulding written by Rui Igreja and published by . This book was released on 2014-05-13 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2007 in the subject Engineering - Mechanical Engineering, language: English, abstract: (Thesis in pdf available here: http: //goo.gl/EZzlT6 and here: http: //hdl.handle.net/10773/2419) Commonly used methods for injection moulding simulation involve a considerable number of simplifications, leading to a significant reduction of the computational effort but, in some cases also to limitations. In this work, Reaction Injection Moulding (RIM) simulations are performed with a minimum of simplifications, by using the general purpose CFD software package Ansys CFX, designed for numerical simulation of fluid flow and heat and mass transfer. The Ansys CFX's homogeneous multiphase flow model, which is generally considered to be the appropriate choice for modelling free surface flows where the phases are completely stratified and the interface is well defined, is shown to be unable to model the filling process correctly. This problem is overcome through the implementation of the inhomogeneous model in combination with the free-slip boundary condition for the air phase. The cure reaction is implemented in the code as a transport equation for an additional scalar variable, with a source term. Various transient and advection schemes are tested to determine which ones produce the most accurate results. Finally, the mass conservation, momentum, cure and energy equations are implemented all together to simulate the simultaneous filling and curing processes present in the RIM process. The obtained numerical results show a good global accuracy when compared with other available numerical and experimental results, though considerably long computation times are required to perform the simulations.
Book Synopsis SAMPE Quarterly by : Society for the Advancement of Material and Process Engineering
Download or read book SAMPE Quarterly written by Society for the Advancement of Material and Process Engineering and published by . This book was released on 1991 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Assessment of the State-of-the-Art for Process Monitoring Sensors for Polymer Composites by : Donald Hunston
Download or read book Assessment of the State-of-the-Art for Process Monitoring Sensors for Polymer Composites written by Donald Hunston and published by DIANE Publishing. This book was released on 1992-06 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling and Simulation of High Reynolds' Number Flows During Reaction Injection Mold Filling by : Timothy John Spiegelhoff
Download or read book Modeling and Simulation of High Reynolds' Number Flows During Reaction Injection Mold Filling written by Timothy John Spiegelhoff and published by . This book was released on 1992 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulation of Mold Filling in Reaction Injection Molding (RIM) by : Huimin Zhan
Download or read book Numerical Simulation of Mold Filling in Reaction Injection Molding (RIM) written by Huimin Zhan and published by . This book was released on 1993 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Composites Engineering Handbook by : P.K. Mallick
Download or read book Composites Engineering Handbook written by P.K. Mallick and published by CRC Press. This book was released on 1997-03-19 with total page 1262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers information on the fundamental principles, processes, methods and procedures related to fibre-reinforced composites. The book presents a comparative view, and provides design properties of polymeric, metal, ceramic and cement matrix composites. It also gives current test methods, joining techniques and design methodologies.
Book Synopsis International Polymer Processing by :
Download or read book International Polymer Processing written by and published by . This book was released on 1986 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search of Excellence, ANTEC 91 by : Society of Plastic Engineers
Download or read book Search of Excellence, ANTEC 91 written by Society of Plastic Engineers and published by CRC Press. This book was released on 1991-05-01 with total page 2914 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computer Modelling of Polymer Processing by : E. Andreassen
Download or read book Computer Modelling of Polymer Processing written by E. Andreassen and published by iSmithers Rapra Publishing. This book was released on 1992 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of computers to numerically analyse polymer processing was first reported as for back as the 1950's, and the first commercial software became available around 20 years ago. Much research has been carried out since that time, and this report aims to summarise contemporary trends in both commercial and academic research and development. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database provides useful references for further reading.
Book Synopsis Mechanics of Plastics and Plastic Composites by : American Society of Mechanical Engineers. Winter Annual Meeting
Download or read book Mechanics of Plastics and Plastic Composites written by American Society of Mechanical Engineers. Winter Annual Meeting and published by . This book was released on 1989 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Liquid Composite Molding by : Richard S. Parnas
Download or read book Liquid Composite Molding written by Richard S. Parnas and published by . This book was released on 2000-01-01 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: CD-ROM contains: Figures -- MPEGs -- Crimson Distribution -- PermDatBase.