Modeling of Thermoplastic Composite Sheet Forming PDF Download

Author: Joong-Hee Lee
Publisher:
ISBN:
Category : Glass-reinforced plastics
Languages : en
Pages : 126

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Author: D. Bhattacharyya
Publisher: Elsevier
ISBN: 0080529593
Category : Science
Languages : en
Pages : 549

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Book Description
Sheet forming is the most common process used in metal forming and is therefore constantly being adapted or modified to suit the needs of forming composite sheets. Due to the increasing availability of various types of fibre reinforced polymeric sheets, especially with thermoplastic matrices, the scope of use of such materials is rapidly expanding in the automobile, building, sports and other manufacturing industries beyond the traditional areas of aerospace and aircraft applications. This book contains twelve chapters and attempts to cover different aspects of sheet forming including both thermoplastic and thermosetting materials. In view of the expanded role of fibre reinforced composite sheets in the industry, the book also describes some non-traditional applications, processes and analytical techniques involving such materials.The first chapter is a brief introduction to the principles of sheet metal forming. The next two chapters introduce the various forms of materials, manufacturing techniques and the fundamentals of computer simulation. Chapter 4 describes the different aspects of thermoforming of continuous fibre reinforced thermoplastics and the following chapter studies the shear and frictional behaviour of composite sheets during forming. Chapter 6 explores the possibility of applying the grid strain analysis method in continuous fibre reinforced polymeric sheets. The next two chapters address fundamental concepts and recent developments in finite element modelling and rheology. Chapter 9 introduces the theory of bending of thermoplastic composite sheets and shows a novel way of determining both longitudinal and transverse viscosities through vee-bend tests. A significant expansion in the usage of composite materials is taking place in biomedical areas. Chapter 10 discusses the thermoforming of knitted fabric reinforced thermoplastics for load bearing and anisotropic bio-implants. The final chapter introduces roll forming, a commonly used rapid manufacturing process for sheet metals, and discusses the possibility of applying it economically for continuous reinforced thermoplastic sheets.

Author: Corey Lynam, P. Eng.,
Publisher: DEStech Publications, Inc
ISBN: 1605950424
Category : Technology & Engineering
Languages : en
Pages : 102

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Book Description
Models and experiments for faster, less expensive manufacture of thermoplastic partsFocused on simulating thermal defects in thermoplasticsTechniques for better molds, tooling and equipment Book explains methods and coding to create FEM-based models to optimize process variables and predict dimensional distortions during the manufacture of thermoplastic matrix composite parts. After investigating defects, such as spring-in, caused by thermal inconsistencies during manufacture, the text offers a step-by-step approach to simulating and predicting the magnitude of distortion via readily available FE codes. Models are validated by testing using the example of a multi-staged roll-formed continuous thermoplastic woven laminate, which can be readily extended to a variety of mold geometries. Information in this book is intended to reduce the need for costly and time-consuming re-tooling in thermoplastic parts design.

Author: Alexandre J. Beaussart
Publisher:
ISBN:
Category : Thermoplastics
Languages : en
Pages : 284

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Author: A C Long
Publisher: Elsevier
ISBN: 1845692535
Category : Technology & Engineering
Languages : en
Pages : 345

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Book Description
Composites are versatile engineered materials composed of two or more constituent materials which, when combined, lead to improved properties over the individual components whilst remaining separate on a macroscopic level. Due to their versatility, composite materials are used in a variety of areas ranging from healthcare and civil engineering to spacecraft technology. Composites forming technologies reviews the wealth of research in forming high-quality composite materials.The book begins with a concise explanation of the forming mechanisms and characterisation for composites, as well as covering modelling and analysis of forming techniques. Further chapters discuss the testing and simulation of composite materials forming. The book also considers forming technologies for various composite material forms including thermoset and thermoplastic prepreg, moulding compounds and composite/metal laminates.With its distinguished editor and array of international contributors, Composites forming technologies is an essential reference for engineers, researchers and academics involved with the production and use of composite materials. - Reviews the wealth of research in forming high-quality composite materials - Includes a concise explanation of the forming mechanisms and charaterisation for composites - Considers forming technologies for various composite material forms

Author: Joong Hee Lee
Publisher:
ISBN:
Category :
Languages : en
Pages : 436

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Book Description

Author: Suresh G. Advani
Publisher: CRC Press
ISBN: 9780203910061
Category : Technology & Engineering
Languages : en
Pages : 456

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Book Description
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 methods to optimize this process — and it remains a proven, powerful introduction to the basic principles of fluid mechanics and heat transfer. Includes tools to develop an experience base to aid in modeling a composite manufacturing process Building on past developments, this new book updates the previous edition’s coverage of process physics and the state of modeling in the field. Exploring research derived from experience, intuition, and trial and error, the authors illustrate a state-of-the-art understanding of mass, momentum, and energy transfer during composites processing. They introduce computer-based solutions using MATLAB® code and flow simulation-based analysis, which complement closed-form solutions discussed in the book, to help readers understand the role of different material, geometric, and process parameters. This self-contained primer provides an introduction to modeling of composite manufacturing processes for anyone working in material science and engineering, industrial, mechanical, and chemical engineering. It introduces a scientific basis for manufacturing, using solved example problems which employ calculations provided in the book. End-of-chapter questions and problems and fill in the blanks sections reinforce the content in order to develop the experience base of the manufacturing, materials, and design engineer or scientists, as well as seniors and first-year graduate students.

Author: Steffen Ropers
Publisher: Springer
ISBN: 365817594X
Category : Technology & Engineering
Languages : en
Pages : 112

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Book Description
Within the scope of this work, Steffen Ropers evaluates the viscoelastic and temperature-dependent nature of the bending behavior of thermoplastic composite sheets in order to further enhance the predictability of the draping simulation. This simulation is a useful tool for the development of robust large scale processes for continuously fiber-reinforced polymers (CFRP). The bending behavior thereby largely influences the size and position of wrinkles, which are one of the most common processing defects for continuously fiber-reinforced parts. Thus, a better understanding of the bending behavior of thermoplastic composite sheets as well as an appropriate testing method along with corresponding material models contribute to a wide-spread application of CFRPs in large scale production.

Author: X-T. Pham
Publisher:
ISBN:
Category :
Languages : en
Pages : 11

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Book Description

Author: Peidong Han
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659333804
Category :
Languages : en
Pages : 200

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Book Description
Digital manufacturing techniques can simulate complex assembly sequences using 'as designed' part forms and their utility has been proven across the automotive and aerospace industries. However, the reality of working with composite components is that geometric variability arising from part forming or processing conditions, can cause problems during assembly as the 'as manufactured' form differs from the geometry used for any process capability definition or simulated build validation. Composites possess attractive properties such as improved structural performance and lower product weight. For thermoplastic based composites improved recyclability is another important factor as sustainability is a key requirement for transport systems of the future. This book introduces predictive methods and technologies for manufacturing practices based on carbon fibre reinforced thermoplastic materials. Equipped with the prediction and simulation technologies developed in this work, composite part design, manufacturability and build validation can now be included in the design process from the earliest conceptual stage where up to 80% of final product cost is determined.