Fusion Bonding of Thermoplastic Composites by Resistance Heating


Book Description

The efficiency of the welded joints is quantified by comparing test results to compression molded lap shear strength. A rapid increase in strength that asymptotically approaches the compression molded baseline is measured. In general, resistance welded APC-2 with PEEK film requires longer process times, with fiber motion occurring at the joint, to achieve a maximum lap shear strength of 44.8±7.6 MPa. The APC-2/PEI resistance welded specimens achieved a maximum strength of 35.9±1.0 Mpa in shorter time with no fiber motion. The baseline for the APC-2/PEI was determined from isothermal processing (1200 sec at 293°C) to be 43.6±3.8 MPa."




Fusion Bonding of Polymer Composites


Book Description

Fusion bonding is one of the three methods available for joining composite and dissimilar materials. While the other two, mechanical fastening and adhesion bonding, have been the subject of wide coverage both in textbooks and monographs, fusion bonding is covered here substantially for the first time. Fusion bonding offers a number of advantages over traditional joining techniques and it is anticipated that its use will increase dramatically in the future because of the rise in the use of thermoplastic matrix composites and the growing necessity for recyclability of engineering assemblies. Fusion Bonding of Polymer Composites provides an in-depth understanding of the physical mechanisms involved in the fusion bonding process, covering such topics as: - heat transfer in fusion bonding; - modelling thermal degradation; - consolidation mechanisms; - crystallisation kinetics; - processing-microstructure-property relationship; - full-scale fusion bonding; - fusion bonding of thermosetting composite/thermoplastic composite and metal/thermoplastic joints. The book focuses on one practical case study using the resistance welding process. This example exposes the reader to the development of processing windows for a novel manufacturing process including the use of experimental test programmes and modelling strategies.




Repair of Thermoplastic Resin Composites by Fusion Bonding


Book Description

Methods for the fusion bonding repair of thermoplastic resin composites are discussed. Depending on the damage modes, thermoplastic resin composites may be repaired by welding on a patch or by thermal reforming. The merits and shortcomings of patching by fusion bonding are discussed and compared to those of adhesive patching. Resistance heating and induction heating with susceptors are considered to be suitable for patching type repair. The processing parameters and critical problems for the field repair application of these methods are investigated. Healing type repair, or thermal reforming, is based on the concept of crack healing of polymers. This technique is particularly interesting for repair of delamination. However, healing type repair requires relatively high pressure which can be achieved generally only at well equipped repair depots.




Thermoplastic Aromatic Polymer Composites


Book Description

Thermoplastic Aromatic Polymer Composites: A Study of the Structure, Processing and Properties of Carbon Fibre Reinforced Polyetheretherketone and Related Materials deals with the field of thermoplastic composite materials through a study of carbon fiber reinforced polyetheretherketone. The book is composed of twelve chapters. The first four chapters are an introduction and basic learning of thermoplastic composite materials. These chapters include discussions on the components of thermoplastics, product forms, and the microstructure of aromatic polymer composites. The processing and manufacturing technology, including the fundamental operations, control, and the wide implications of manufacturing the composite material, are analyzed. The service performance structure of three interactions, namely, material, design, and processing, are illustrated. The strength of thermoplastic composites is then considered through an analysis of both shear and extensions with elastic modulus, but in the case of material strength, the differences between tension and compression properties should be taken into account. The book also notes that the durability, temperature sensitivity, and environmental resistance should likewise be regarded for a structural composite to have practical value and satisfactory performance. Lastly, the text explains that the numerous applications of thermoplastic structural composites, such as in medicine, aviation, marine and space technology, automotive, and industrial machinery, are all important and a rigorous evaluation is therefore necessary. The book finally suggests that the research into the future developments in the thermoplastic structural composites and the trend toward new design strategies and processing technology are important in optimizing the composite's great potential. Industrial researchers in the field of chemistry and polymer composites, students, and academicians interested in the design and application of polymer composites will find this book relevant.




Composites Bonding


Book Description




Heat Transfer in Polymer Composite Materials


Book Description

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.







Thermoplastic Composites


Book Description

The book covers various thermoplastic composites, including continuous and discontinuous fiber thermoplastic composites. It describes processing methods and explains the effect of different processing parameters on the structure and performance of thermoplastic composites. Characterization and mechanics of the composite are also discussed in the book.




High Performance Thermoplastic Resins and Their Composites


Book Description

Recent developments in high performance thermoplastic resins and their composites are described in this book, and the benefits and limitations of these emerging materials are assessed for aerospace and other applications. Discussions on the performance of neat and continuous fiber reinforced thermoplastic resins in terms of their properties and environmental and chemical resistance are provided.




Composite Materials


Book Description

Focusing on the relationship between structure and properties, this is a well-balanced treatment of the mechanics and the materials science of composites, while not neglecting the importance of processing. This updated second edition contains new chapters on fatigue and creep of composites, and describes in detail how the various reinforcements, the materials in which they are embedded, and of the interfaces between them, control the properties of the composite materials at both the micro- and macro-levels. Extensive use is made of micrographs and line drawings, and examples of practical applications in various fields are given throughout the book, together with extensive references to the literature. Intended for use in graduate and upper-division undergraduate courses, this book will also prove a useful reference for practising engineers and researchers in industry and academia.