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Contribution A Letude Des Deformations Plastiques Des Monocristaux Metalliques
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Book Synopsis Large Plastic Deformation of Crystalline Aggregates by : Cristian Teodosiu
Download or read book Large Plastic Deformation of Crystalline Aggregates written by Cristian Teodosiu and published by Springer. This book was released on 2014-05-04 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book gives a comprehensive view of the present ability to take into account the microstructure and texture evolution in building up engineering models of the plastic behaviour of polycrystalline materials at large strains. It is designed for postgraduate students, research engineers and academics that are interested in using advanced models of the mechanical behaviour of polycrystalline materials.
Book Synopsis Modelling Small Deformations of Polycrystals by : J. Gittus
Download or read book Modelling Small Deformations of Polycrystals written by J. Gittus and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: The scientific work of Jean Mandel has been exceptionally rich in the area of the mechanics of solids; the subjects which he has treated have been extremely diverse, from the theory of plasticity, buckling, soil mechanics, visco-elasticity, the theory of reduced models, and thermo dynamics, to percolation in porous media. But throughout this com prehensive work Jean Mandel has always maintained his interest in forming connections between the properties of materials (strength, deformability, viscosity) and the properties of their basic constituents. What is sometimes referred to in materials science as the transition from the microscopic to the macroscopic has for him been a very constant direction of research, which he never ceased to encourage in the Laboratoire de Mecanique des Solides of which he was the director. It is known that in the plasticity of metals permanent deformations must be sought in intercrystalline slip and more generally in disloca tions and the various microstructural defects. Before deformation of polycrystals is tackled, it is necessary to understand the mechanisms which take place within the crystal: the different systems of slip which may be activated and also the elementary mechanisms of twinning. Jean Mandel has shown how to make the transition from the behaviour of the single crystal to that of the polycrystal and has given the relation ships between the overall permanent deformation of the polycrystal and the plastic deformation of the single crystal.
Book Synopsis Large Deformations of Solids: Physical Basis and Mathematical Modelling by : J. Gittus
Download or read book Large Deformations of Solids: Physical Basis and Mathematical Modelling written by J. Gittus and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 501 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Applied Mechanics written by and published by . This book was released on 1983 with total page 1228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1993 with total page 1832 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mechanical Behavior of Anisotropic Solids / Comportment Méchanique des Solides Anisotropes by : J.P. Boehler
Download or read book Mechanical Behavior of Anisotropic Solids / Comportment Méchanique des Solides Anisotropes written by J.P. Boehler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1978, the European Mechanics Committee and the French Centre National de la Recherche Scientifique agreed to the organization of an Interna tional Colloquium on the "Mechanical Behavior of Anisotropic Solids". The meeting was held at Villard-de-Lans (near Grenoble, France) from 19th to 22 nd June 1979. The Colloquium considered mechanical aspects of the anisotropy of solids, both initial and induced by permanent deformation, anisotropic hardening and damage, oriented fissuration, etc. Topics concerned mathematical, experimental and engineering aspects of the anisotropy of metals, composites, soils and rocks. The aim of the Colloquium was to bring together experimentalists, theoretecians and engineers interested in various features of mechanical anisotropy, in order to permit an interdisciplinary exchange of understanding, experience and methods. A detailed description of the scope, aim and proposed topics is contained in the Preface. The announcement of the Colloquium attracted a large number of sub mitted contributions. Conforming with the principles of Euromech Colloquia and of the Colloques Internationaux du CNRS, the accepted contributions were limited to 50 communications. A general description of the scientific program is to be found in the Preface. Five general lectures gave state-of-the-art reports concerning some areas of the behavior of anisotropic solids; the 50 communications were divided into 12 sessions dealing with specific topics (see "Contents"). In order to facilitate subsequent contact between the reader and the contributors, full addresses are given in the "List of Authors."
Author :Markaz al-Qawmī lil-Buḥūth (Egypt). Scientific and Technical Information Centre Publisher : ISBN 13 : Total Pages :1312 pages Book Rating :4.3/5 (91 download)
Book Synopsis Bulletin of the Scientific and Technical Documentation Centre by : Markaz al-Qawmī lil-Buḥūth (Egypt). Scientific and Technical Information Centre
Download or read book Bulletin of the Scientific and Technical Documentation Centre written by Markaz al-Qawmī lil-Buḥūth (Egypt). Scientific and Technical Information Centre and published by . This book was released on 1956 with total page 1312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comportement Plastique Des Solides Anisotropes by : Jean-Paul Boehler
Download or read book Comportement Plastique Des Solides Anisotropes written by Jean-Paul Boehler and published by . This book was released on 1985 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book French Bibliographical Digest written by and published by . This book was released on 1960 with total page 1270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Three-dimensional Constitutive Relations and Ductile Fracture by : S. Nemat-Nasser
Download or read book Three-dimensional Constitutive Relations and Ductile Fracture written by S. Nemat-Nasser and published by North Holland. This book was released on 1981 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications scientifiques et techniques by : France. Ministère de l'air
Download or read book Publications scientifiques et techniques written by France. Ministère de l'air and published by . This book was released on 1956 with total page 958 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Programs written by and published by . This book was released on 1977 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Deformation Modes of Single Crystal Uranium Dioxide from 700°C to 1900°C by : E. J. Rapperport
Download or read book Deformation Modes of Single Crystal Uranium Dioxide from 700°C to 1900°C written by E. J. Rapperport and published by . This book was released on 1960 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cracks in superalloys by : Jonas Saarimäki
Download or read book Cracks in superalloys written by Jonas Saarimäki and published by Linköping University Electronic Press. This book was released on 2018-01-18 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas turbines are widely used in industry for power generation and as a power source at hard to reach locations where other possibilities for electrical power supplies are insufficient. New ways of producing greener energy is needed to reduce emission levels. This can be achieved by increasing the combustion temperature of gas turbines. High combustion temperatures can be detrimental and degrade critical components. This raises the demands on the high temperature performance of the superalloys used in gas turbine components. These components are frequently subjected to different cyclic loads combined with for example dwell-times and overloads at elevated temperatures, which can influence the crack growth. Dwell-times have been shown to accelerate crack growth and change cracking behaviour in both Inconel 718, Haynes 282 and Hastelloy X. On the other hand, overloads at the beginning of a dwell-time cycle have been shown to retard the dwell-time effect on crack growth in Inconel 718. More experiments and microstructural investigations are needed to better understand these effects. The work presented in this thesis was conducted under the umbrella of the research program Turbo Power; "High temperature fatigue crack propagation in nickel-based superalloys", where I have mainly looked at fatigue crack growth mechanisms in superalloys subjected to dwell-fatigue, which can have a devastating effect on crack propagation behaviour. Mechanical testing was performed under operation-like cycles in order to achieve representative microstructures and material data for the subsequent microstructural work. Microstructures were investigated using light optical microscopy and scanning electron microscopy (SEM) techniques such as electron channeling contrast imaging (ECCI) and electron backscatter diffraction (EBSD). The outcome of this work has shown that there is a significant increase in crack growth rate when dwell-times are introduced at maximum load (0 % overload) in the fatigue cycle. With the introduction of a dwell-time there is also a shift from transgranular to intergranular crack growth for both Inconel 718 and Haynes 282. The crack growth rate decreases with increasing overload levels in Inconel 718 when an overload is applied prior to the dwell-time. At high temperature, intergranular crack growth was observed in Inconel 718 as a result of oxidation and the creation of nanometric voids. Another observed growth mechanism was crack advance along ?-phase boundaries with subsequent oxidation of the ?-phase. This thesis comprises two parts. Part I gives an introduction to the field of superalloys and the acting microstructural mechanisms related to fatigue and crack propagation. Part II consists of five appended papers, which report the work completed as part of the project.
Book Synopsis Alpha-particle Calibrations by : J. M. R. Hutchinson
Download or read book Alpha-particle Calibrations written by J. M. R. Hutchinson and published by . This book was released on 1987 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book L'Industrie Céramique written by and published by . This book was released on 1962 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bulletin de documentation, nos. 96-172, included in 1964-1970 volumes.
Book Synopsis High-Temperature Fatigue Behaviour of Austenitic Stainless Steel by : Hugo Wärner
Download or read book High-Temperature Fatigue Behaviour of Austenitic Stainless Steel written by Hugo Wärner and published by Linköping University Electronic Press. This book was released on 2018-12-20 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: The global energy consumption is increasing and together with global warming from greenhouse gas emission, create the need for more environmental friendly energy production processes. Higher efficiency of biomass power plants can be achieved by increasing temperature and pressure in the boiler section and this would increase the generation of electricity along with the reduction in emission of greenhouse gases e.g. CO2. The power generation must also be flexible to be able to follow the demands of the energy market, this results in a need for cyclic operating conditions with alternating output and multiple start-ups and shut-downs. Because of the demands of flexibility, higher temperature and higher pressure in the boiler section of future biomass power plants, the demands on improved mechanical properties of the materials of these components are also increased. Properties like creep strength, thermomechanical fatigue resistance and high temperature corrosion resistance are critical for materials used in the next generation biomass power plants. Austenitic stainless steels are known to possess such good high temperature properties and are relatively cheap compared to the nickel-base alloys, which are already operating at high temperature cyclic conditions in other applications. The behaviour of austenitic stainless steels during these widened operating conditions are not yet fully understood. The aim of this licentiate thesis is to increase the knowledge of the mechanical behaviour at high temperature cyclic conditions for austenitic stainless steels. This is done by the use of thermomechanical fatigue- and creepfatigue testing at elevated temperatures. For safety reasons, the effect of prolonged service degradation is investigated by pre-ageing before mechanical testing. Microscopy is used to investigate the microstructural development and resulting damage behaviour of the austenitic stainless steels after testing. The results show that creep-fatigue interaction damage, creep damage and oxidation assisted cracking are present at high temperature cyclic conditions. In addition, simulated service degradation resulted in a detrimental embrittling effect due to the deterioration by the microstructural evolution.
