Flow Molding Of Discontinuous Fiber Reinforced Plastics
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Author | : L. A. Goettler |
Publisher | : |
Total Pages | : 127 |
Release | : 1969 |
Genre | : |
ISBN | : |
The report presents a literature survey which covers aspects of molding and rheology pertinent to the flow molding of plastics containing elongated fillers, e.g. fibers or whiskers. Emphasis is placed on filler orientation, flow behavior, and breakage. The molding literature does not present a scientific approach to the investigation of these phenomena, and reported observations are not quantitative and are not interpreted in the light of current rehological developments. A specific program is recommended for the study of fiber orientation and placement in the molding of simple shapes. (Author).
Author | : Wittemann, Florian |
Publisher | : KIT Scientific Publishing |
Total Pages | : 180 |
Release | : 2022-11-18 |
Genre | : Technology & Engineering |
ISBN | : 3731512173 |
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.
Author | : Umesh Gandhi |
Publisher | : Carl Hanser Verlag GmbH Co KG |
Total Pages | : 480 |
Release | : 2020-03-09 |
Genre | : Technology & Engineering |
ISBN | : 1569906955 |
There are many books on composite material analysis, but most cover mainly continuous fiber materials, rather than those filled with discontinuous fibers, which are particularly attractive for large-volume and low-cost applications. This book provides the theoretical and practical background to design and use discontinuous fiber-reinforced polymer materials, with an emphasis on structural parts for the automotive industry. Moreover, the product of years of collaborative work between industry and academia is presented in an easy-to-use, comprehensive manner. The information provided makes it possible for someone with an engineering background to understand the micromechanics of discontinuous fiber-reinforced materials and, hence, analyze the structural performance of components designed with such materials. The book employs a practical approach to cover the key, unique capabilities that are critical for a successful structural analysis of discontinuous fiber-reinforced polymer structures: -Process simulation to estimate the condition of fibers in the finished parts, i.e., fiber length, orientation, and concentration -Capability to measure micro structure, i.e., fiber length distribution, fiber orientation tensors, and fiber concentration, etc. -Estimation of material properties in the part based on fiber condition, as well as environmental conditions such as temperature A broad range of areas is included, such as joining and assembly.
Author | : P.K. Mallick |
Publisher | : CRC Press |
Total Pages | : 588 |
Release | : 1993-05-24 |
Genre | : Technology & Engineering |
ISBN | : 9780824790318 |
Maintaining the interdisciplinary perspective of the first edition, this reference and text provides comprehensive discussions of all aspects of fiber-reinforced composites, including materials, mechanics, properties, test methods, manufacturing and design. Written from a conceptual point of view and emphasizing fundamentals, the second edition of Fiber Reinforced Composites offers updated and expanded sections including: fibers and matrix, including thermoplastic matrices; discontinuous fibers and laminated structures; static mechanical properties, fatigue properties and damage tolerance; resin flow, bag molding, filament winding and resin transfer molding; and environmental effects.
Author | : Thomas Böhlke |
Publisher | : Carl Hanser Verlag GmbH Co KG |
Total Pages | : 448 |
Release | : 2019-08-05 |
Genre | : Technology & Engineering |
ISBN | : 1569906939 |
Discontinuous long fiber reinforced polymer structures with local continuous fiber reinforcements represent an important class of lightweight materials with broad design possibilities and diverse technical applications, e.g. in vehicle construction. However, in contrast to continuous fiber reinforced composites, extensively used in the aircraft industry, there is still a lack of integrated and experimentally proven concepts for manufacture, modeling, and dimensioning of combinations of discontinuously and continuously reinforced polymer structures. This is partly ascribed to the complexity of the manufacturing processes of discontinuously reinforced polymers, with heterogeneous, anisotropic, and nonlinear material and structural properties, but also to the resulting bonding problem of both material types. This book addresses these issues, including both continuous and discontinuous fiber processing strategies. Specific design strategies for advanced composite reinforcement strategies are provided, with an integrated and holistic approach taken for composites material selection, product design, and mechanical properties. Characterization, simulation, technology, design, future research, and implementation directions are also included. Especially in the field of application of three-dimensional load-bearing structures, this book provides an excellent foundation for the enhancement of scientific methods and the education of engineers who need an interdisciplinary understanding of process and material techniques, as well as simulation and product development methods.
Author | : Tim A. Osswald |
Publisher | : MDPI |
Total Pages | : 212 |
Release | : 2019-01-15 |
Genre | : Chemistry |
ISBN | : 3038974919 |
This book is a printed edition of the Special Issue "Discontinuous Fiber Composites" that was published in J. Compos. Sci.
Author | : Shao-yun Fu |
Publisher | : Woodhead Publishing |
Total Pages | : 470 |
Release | : 2019-08-24 |
Genre | : Technology & Engineering |
ISBN | : 0081026242 |
Science and Engineering of Short Fibre Reinforced Polymer Composites, Second Edition, provides the latest information on the ‘short fiber reinforced composites' (SFRP) that have found extensive applications in automobiles, business machines, durable consumer items, sporting goods and electrical industries due to their low cost, easy processing and superior mechanical properties over parent polymers. This updated edition presents new developments in this field of research and includes new chapters on electrical conductivity, structural monitoring, functional properties, self-healing, finite element method techniques, multi-scale SFRCs, and both modern computational and process engineering methods. Reviews the mechanical properties and functions of short fiber reinforced polymer composites (SFRP) Examines recent developments in the fundamental mechanisms of SFRP's Assesses major factors affecting mechanical performance, such as stress transfer and strength Includes new chapters on electrical conductivity, structural monitoring, functional properties, self-healing, finite element method techniques, multi-scale SFRCs, modern computational methods, and process engineering methods
Author | : T. D. Papathanasiou |
Publisher | : Woodhead Publishing |
Total Pages | : 384 |
Release | : 1997-10-21 |
Genre | : Computers |
ISBN | : 9781855732544 |
The purpose of aligning short fibers in a fiber-reinforced material is to improve the mechanical properties of the resulting composite. Aligning the fibers, generally in a preferred direction, allows them to contribute as much as possible to reinforcing the material. In some cases, the mechanical properties of these aligned, short-fiber composites can approach those of continuous-fiber composites, with the advantages of lower production costs and greater ease of production. Since its publication, this book has been consistently recognized as one of the most important contributions to this field.
Author | : Suresh G. Advani |
Publisher | : |
Total Pages | : 636 |
Release | : 1994 |
Genre | : Manufacturing processes |
ISBN | : |
Deals with the mechanics and modelling aspects of discontinuous and continuous fibre composites, and familiarizes engineers with the critical and fundamental issues of material processing and transport phenomena in polymeric composites and their applications in modelling.
Author | : J. N. Fleck |
Publisher | : |
Total Pages | : 108 |
Release | : 1972 |
Genre | : Ceramic fibers |
ISBN | : |
The bibliography contains over 3000 references, including translated items from Japan, West Germany, U.S.S.R., and other countries as well as references of original English language publications of the United States and United Kingdom. The references are categorized by specific fiber and matrix materials. In addition, many references are grouped in the general categories of compatibility studies, theory and design, testing and evaluation, application, and fabrication. A group of references to general review articles is included. The references represent the holdings of the former Defense Ceramic Information Center (DCIC) plus those of the Fibers and Composites Center (FCIC) at Battelle's Columbus Laboratories and MCIC. (Author).