From Charpy to Present Impact Testing contains 52 peer-reviewed papers selected from those presented at the Charpy Centenary Conference held in Poitiers, France, 2-5 October 2001. The name of Charpy remains associated with impact testing on notched specimens. At a time when many steam engines exploded, engineers were preoccupied with studying the resistance of steels to impact loading. The Charpy test has provided invaluable indications on the impact properties of materials. It revealed the brittle ductile transition of ferritic steels. The Charpy test is able to provide more quantitative results by instrumenting the striker, which allows the evolution of the applied load during the impact to be determined. The Charpy test is of great importance to evaluate the embrittlement of steels by irradiation in nuclear reactors. Progress in computer programming has allowed for a computer model of the test to be developed; a difficult task in view of its dynamic, three dimensional, adiabatic nature. Together with precise observations of the processes of fracture, this opens the possibility of transferring quantitatively the results of Charpy tests to real components. This test has also been extended to materials other than steels, and is also frequently used to test polymeric materials. Thus the Charpy test is a tool of great importance and is still at the root of a number of investigations; this is the reason why it was felt that the centenary of the Charpy test had to be celebrated. The Société Française de Métallurgie et de Matériaux decided to organise an international conference which was put under the auspices of the European Society for the Integrity of Structures (ESIS). This Charpy Centenary Conference (CCC 2001) was held in Poitiers, at Futuroscope in October 2001. More than 150 participants from 17 countries took part in the discussions and about one hundred presentations were given. An exhibition of equipment showed, not only present day testing machines, but also one of the first Charpy pendulums, brought all the way from Imperial College in London. From Charpy to Present Impact Testing puts together a number of significant contributions. They are classified into 6 headings: •Keynote lectures,•Micromechanisms,•Polymers,•Testing procedures,•Applications,•Modelling.

By popular request, the National Bureau of Standards was again a host to a conference on cryogenic engineering on August 19-21, 1957. Similar meetings were held here in 1954 and 1956. The acceptance of over forty papers for this conference was certainly a sign of the increasing activity and interest in this engineering field. There seems little doubt that it will continue to grow, justifying the need for annual meetings. To make the Proceedings more interesting an attempt was made to include as much as possible of the general discussion which followed each paper. To obtain individual reprints of anyone particular paper, please contact the authors directly. 1957 CRYOGENIC ENGINEERING CONFERENCE COMMITTEE B. W. Birmingham National Bureau of Standards S. C. Collins Massachusetts Institute of Technology E. F. Hammel Los Alamos Scientific Laboratory R. B. Scott National Bureau of Standards K. D. Timmerhaus University of Colorado W. T. Ziegler Georgia Institute of Technology i ACKNOWLEDGMENTS The 1957 Cryogenic Engineering Conference Committee gratefully acknowledges the continued support and interest of the following organizations who have made the 1957 Cryogenic Engineering Conference and the publication of this Proceedings possible. L' Air Liquide Air Products, Inc. Allison Division, General Motor s American Messer Corporation Aro Equipment Corporation Beech Aircraft Corporation Bell Aircraft Boeing Airplane Company Cambridge Corporation Convair Curtiss-Wright Corporation Garrett Corporation General Electric Company Herrick L. Johnston, Inc. Hofman Laboratories Linde Company A. D. Little, Inc.

This reference book makes it easy for anyone involved in materials selection, or in the design and manufacture of metallic structural components to quickly screen materials for a particular application. Information on practically all ferrous and nonferrous metals including powder metals is presented in tabular form for easy review and comparison between different materials. Included are chemical compositions, physical and mechanical properties, manufacturing processes, applications, pertinent specifications and standards, and test methods. Contents Overview: Glossary of metallurgical terms Selection of structural materials (specifications and standards, life cycle and failure modes, materials properties and design, and properties and applications) Physical data on the elements and alloys Testing and inspection Chemical composition and processing characteristics

Discover a novel approach to the subject, providing detailed information about established and innovative mechanical testing procedures.

Determination of the Mechanical and Technological Properties of Metals presents the principal types of testing machine and equipment. This book provides a brief description of the methods for determining the principal mechanical and technological properties of metals. Organized into three chapters, this book begins with an overview of mechanical testing of metals subdivide into static, dynamic, and fatigue testing depending of the method of load application as a function of time. This text then describes weld metal working under tensile loading conditions. Other chapters consider the various methods for the determination of the technological properties of metals, including longitudinal turning method and face turning method. This book discusses as well the methods of determining the machinability of metals, including two-tool test procedure, drilling test, and temperature test. This book is a valuable resource for students taking practical laboratory courses in metal working at technical colleges. Laboratory personnel will also find this book useful.

Carbon and glass fibre reinforced composite materials have been used for many years in several different types of applications. However, these conventional composites are derived from non-renewable reinforcements and they pose a significant threat to the environment. Government legislation and consumer behaviour have recently forced many industries to adapt sustainable composites. Industries such as automotive, marine and aerospace are now seeking sustainable lightweight composites with the aim to reduce the overall weight of the components with enhanced materials and design aspects. Therefore, there is high demand on research for the development of sustainable lightweight composites. This book presents a comprehensive review of lightweight composites with the central aim to increase their use in key industrial sectors such as automotive, marine and aerospace. There is no such book currently available that is dedicated to sustainable lightweight applications covering important topics such as key drivers for lightweight composites, mechanical properties, damage characterisation, durability and environmental aspects. Key topics that are addressed include: - The roles of reinforcements and matrices in composite materials - Sustainable natural fibre reinforcements and their morphological structures - Lightweight applications and properties requirements - Design, manufacturing processes and their effects on properties - Testing and damage characterisation of composite materials - Sustainable composites and techniques for property enhancement - Future trends and challenges for sustainable composites in lightweight applications It will be a valuable reference resource for those working in material Science, polymer science, materials engineering, and industries involved in the manufacture of automotive and aerospace components from lightweight composite materials. - Provides a comprehensive review of sustainable lightweight composites looking at key industrial applications such as automotive, marine, and aerospace and construction - Important relationships between structure and properties are analysed in detail - Enhancement of properties through hybrid systems, are also explored with emphasis on design, materials selection and manufacturing techniques

This book is intended to serve as core text or handy reference on two key areas of metallic materials: (i) mechanical behavior and properties evaluated by mechanical testing; and (ii) different types of metal working or forming operations to produce useful shapes. The book consists of 16 chapters which are divided into two parts. The first part contains nine chapters which describe tension (including elastic stress – strain relation, relevant theory of plasticity, and strengthening methods), compression, hardness, bending, torsion – pure shear, impact loading, creep and stress rupture, fatigue, and fracture. The second part is composed of seven chapters and covers fundamentals of mechanical working, forging, rolling, extrusion, drawing of flat strip, round bar, and tube, deep drawing, and high-energy rate forming. The book comprises an exhaustive description of mechanical properties evaluated by testing of metals and metal working in sufficient depth and with reasonably wide coverage. The book is written in an easy-to-understand manner and includes many solved problems. More than 150 numerical problems and many multiple choice questions as exercise along with their answers have also been provided. The mathematical analyses are well elaborated without skipping any intermediate steps. Slab method of analysis or free-body equilibrium approach is used for the analytical treatment of mechanical working processes. For hot working processes, different frictional conditions (sliding, sticking and mixed sticking–sliding) have been considered to estimate the deformation loads. In addition to the slab method of analysis, this book also contains slip-line field theory, its application to the static system, and the steady state motion, Further, this book includes upper-bound theorem, and upper-bound solutions for indentation, compression, extrusion and strip drawing. The book can be used to teach graduate and undergraduate courses offered to students of mechanical, aerospace, production, manufacturing and metallurgical engineering disciplines. The book can also be used for metallurgists and practicing engineers in industry and development courses in the metallurgy and metallic manufacturing industries.

This book includes a carefully-chosen and edited selection of 23 papers from the Ecotextile 2004 Conference held at the University of Bolton. Ecotextiles is divided into five main parts. Part one deals with recycling and use of waste as raw materials in such areas as clothing and carpet manufacture. Part two discusses sustainability and eco-design with papers on improved design, use of sustainable fibres and manufacturing techniques. Part three reviews sustainable development and renewables, including discussion of topics such as composites made from textile waste. Part four considers waste management in such areas as dyeing and effluent treatment. The final part of the book assesses novel technologies, including new fibres and finishing techniques.As pressure from governments and consumers continues to grow, Ecotextiles is a valuable reference for the textile industry on best practice in sustainable production. - A key guide to best practice in sustainable production - Includes expert reviews of current developments in recycling, sustainable production and process optimisation - Assesses novel technologies, including new fibres and finishing techniques