Dislocation Density Function D
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Author | : D. Hull |
Publisher | : Cambridge University Press |
Total Pages | : 334 |
Release | : 1996-08-13 |
Genre | : Technology & Engineering |
ISBN | : 1107393183 |
Download An Introduction to Composite Materials Book in PDF, Epub and Kindle
This edition has been greatly enlarged and updated to provide both scientists and engineers with a clear and comprehensive understanding of composite materials. In describing both theoretical and practical aspects of their production, properties and usage, the book crosses the borders of many disciplines. Topics covered include: fibres, matrices, laminates and interfaces; elastic deformation, stress and strain, strength, fatigue crack propagation and creep resistance; toughness and thermal properties; fatigue and deterioration under environmental conditions; fabrication and applications. Coverage has been increased to include polymeric, metallic and ceramic matrices and reinforcement in the form of long fibres, short fibres and particles. Designed primarily as a teaching text for final-year undergraduates in materials science and engineering, this book will also interest undergraduates and postgraduates in chemistry, physics, and mechanical engineering. In addition, it will be an excellent source book for academic and technological researchers on materials.
Author | : Johannes Weertman |
Publisher | : World Scientific Publishing Company |
Total Pages | : 548 |
Release | : 1996-02-16 |
Genre | : Technology & Engineering |
ISBN | : 981310497X |
Download Dislocation Based Fracture Mechanics Book in PDF, Epub and Kindle
The dislocation is the basic building block of the crack in an elastic-plastic solid. Fracture mechanics is developed in this text from its dislocation foundation. It is the only text to do so. It is written for the graduate student and the new investigator entering the fracture field as well as the experienced scientist who has not used the dislocation approach. The dislocation mechanics needed to find the dislocation density fields of crack tip plastic zones is developed in detail. All known dislocation based solutions are given for the three types of cracks in elastic-plastic solids are given.
Author | : I. Kovács |
Publisher | : Elsevier |
Total Pages | : 359 |
Release | : 2016-07-08 |
Genre | : Science |
ISBN | : 1483146189 |
Download Dislocations and Plastic Deformation Book in PDF, Epub and Kindle
Dislocations and Plastic Deformation deals with dislocations and plastic deformation, and specifically discusses topics ranging from deformation of single crystals and dislocations in the lattice to the fundamentals of the continuum theory, the properties of point defects in crystals, multiplication of dislocations, and partial dislocations. The effect of lattice defects on the physical properties of metals is also considered. Comprised of nine chapters, this book begins by providing a short and, where possible, precise explanation of dislocation theory. The first six chapters discuss the properties of dislocations and point defects both in crystals and in an elastic continuum. The reader is then introduced to some applications of dislocation theory that show, for instance, the difficulties involved in understanding the hardening of alloys and the work-hardening of pure metals. This book concludes by analyzing the effect of heat treatment on the defect structure in metals. This text will be of interest to students and practitioners in the field of physics.
Author | : Frank R.N. Nabarro |
Publisher | : Elsevier |
Total Pages | : 687 |
Release | : 2002-12-05 |
Genre | : Science |
ISBN | : 0080530451 |
Download Dislocations in Solids Book in PDF, Epub and Kindle
Dislocations are lines of irregularity in the structure of a solid analogous to the bumps in a badly laid carpet. Like these bumps, they can be easily moved, and they provide the most important mechanism by which the solid can be deformed. They also have a strong influence on crystal growth and on the electronic properties of semiconductors.
Author | : Peter M. Anderson |
Publisher | : Cambridge University Press |
Total Pages | : 721 |
Release | : 2017-01-16 |
Genre | : Technology & Engineering |
ISBN | : 1316785106 |
Download Theory of Dislocations Book in PDF, Epub and Kindle
Theory of Dislocations provides unparalleled coverage of the fundamentals of dislocation theory, with applications to specific metal and ionic crystals. Rather than citing final results, step-by-step developments are provided to offer an in-depth understanding of the topic. The text provides the solid theoretical foundation for researchers to develop modeling and computational approaches to discrete dislocation plasticity, yet it covers important experimental observations related to the effects of crystal structure, temperature, nucleation mechanisms, and specific systems. This new edition incorporates significant advances in theory, experimental observations of dislocations, and new findings from first principles and atomistic treatments of dislocations. Also included are new discussions on thin films, deformation in nanostructured systems, and connection to crystal plasticity and strain gradient continuum formulations. Several new computer programs and worked problems allow the reader to understand, visualize, and implement dislocation theory concepts.
Author | : Ronald W. Armstrong |
Publisher | : MDPI |
Total Pages | : 188 |
Release | : 2020-11-03 |
Genre | : Science |
ISBN | : 3039432648 |
Download Dislocation Mechanics of Metal Plasticity and Fracturing Book in PDF, Epub and Kindle
The modern understanding of metal plasticity and fracturing began about 100 years ago, with pioneering work; first, on crack-induced fracturing by Griffith and, second, with the invention of dislocation-enhanced crystal plasticity by Taylor, Orowan and Polanyi. The modern counterparts are fracture mechanics, as invented by Irwin, and dislocation mechanics, as initiated in pioneering work by Cottrell. No less important was the breakthrough development of optical characterization of sectioned polycrystalline metal microstructures started by Sorby in the late 19th century and leading eventually to modern optical, x-ray and electron microscopy methods for assessments of crystal fracture surfaces, via fractography, and particularly of x-ray and electron microscopy techniques applied to quantitative characterizations of internal dislocation behaviors. A major current effort is to match computational simulations of metal deformation/fracturing behaviors with experimental measurements made over extended ranges of microstructures and over varying external conditions of stress-state, temperature and loading rate. The relation of such simulations to the development of constitutive equations for a hoped-for predictive description of material deformation/fracturing behaviors is an active topic of research. The present collection of articles provides a broad sampling of research accomplishments on the two subjects.
Author | : E. Kröner |
Publisher | : Springer Science & Business Media |
Total Pages | : 370 |
Release | : 2013-11-11 |
Genre | : Science |
ISBN | : 3662302578 |
Download Mechanics of Generalized Continua Book in PDF, Epub and Kindle
5 The symposium was held in Freudenstadt from 28\h to 31 \ ofAugust st nd 1967 and in Stuttgart from 1 to 2 of September 1967. The proposal to hold this symposium originated with the German Society of Applied Mathematics and Mechanics (GAMM) late in 1964 and was examined by a committee of IUTAM especially appointed for this purpose. The basis of this examination was a report in which the present situation in the field and the possible aims of the symposium were surveyed. Briefly, the aims of the symposium were stated to be 1. the unification of the various approaches developed in recent years with the aim of penetrating into the microscopic world of matter by means of continuum theories; 2. the bridging of the gap between microscopic (or atomic) research on mechanics on one hand, and the phenomenological (or continuum mechanical) approach on the other hand; 3. the physical interpretation and the relation to actual material behaviour of the quantities and laws introduced into the new theories, together with applications; 4. the further development of the theories, where necessary, and the clarification of open questions; 5. a stocktaking of present achievements and the prognosis for future developments. The committee agreed unanimously that the topic of the symposium represented an important phase of current developments in continuum mechanics, from the purely theoretical point of view as well as in connection with possible applications to actual materials.
Author | : Franz Roters |
Publisher | : John Wiley & Sons |
Total Pages | : 188 |
Release | : 2011-08-04 |
Genre | : Technology & Engineering |
ISBN | : 3527642099 |
Download Crystal Plasticity Finite Element Methods Book in PDF, Epub and Kindle
Written by the leading experts in computational materials science, this handy reference concisely reviews the most important aspects of plasticity modeling: constitutive laws, phase transformations, texture methods, continuum approaches and damage mechanisms. As a result, it provides the knowledge needed to avoid failures in critical systems udner mechanical load. With its various application examples to micro- and macrostructure mechanics, this is an invaluable resource for mechanical engineers as well as for researchers wanting to improve on this method and extend its outreach.
Author | : D. Heim |
Publisher | : |
Total Pages | : 13 |
Release | : 1997 |
Genre | : Anisotropy |
ISBN | : |
Download Boundary Element/Dislocation Density Methodology for Analysis of Cracks in Anisotropic Solids Book in PDF, Epub and Kindle
A boundary element method is presented for the stress analysis of cracks in two-dimensional, linearly elastic anisotropic solids. The technique is an extension of that by Chang and Mear [5] for isotropic solids and involves the use of a special "regularization" for certain integrals associated with the crack line. The resulting integral equations consist of the conventional ordinary boundary terms as well as two additional terms that correspond to a distribution of concentrated forces and a distribution of dislocations along the crack line. In the numerical implementation of the formulation, the ordinary boundary integrals are treated with standard boundary element techniques, while a special numerical procedure is used to treat the crack line integrals. The resulting procedure is applied to several example problems to demonstrate the accuracy and efficiency of the method.
Author | : John Arthur Simmons |
Publisher | : |
Total Pages | : 752 |
Release | : 1970 |
Genre | : Dislocations in crystals |
ISBN | : |
Download Fundamental Aspects of Dislocation Theory Book in PDF, Epub and Kindle