Dislocation Modelling of Physical Systems

Dislocation Modelling of Physical Systems PDF Author: M.F. Ashby
Publisher: Elsevier
ISBN: 1483158276
Category : Technology & Engineering
Languages : en
Pages : 598

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Book Description
Dislocation Modelling of Physical Systems contains the Proceedings of the International Conference held at Gainesville, Florida, USA on June 22-27, 1980. The book emphasizes the growing interest in relating dislocation theoretic concepts to engineering problems. Topic areas chosen ranged from the fundamental, such as properties of single dislocations, to the more applied, such as fracture. The papers are grouped specifically based on the main topics they discuss. These topics include fracture; point defects and dislocations; structure dependence of mechanical behavior; properties of single dislocations; plasticity and geometry of deformation; internal friction effects; and boundaries.

Dislocation Modelling of Physical Systems

Dislocation Modelling of Physical Systems PDF Author: M.F. Ashby
Publisher: Elsevier
ISBN: 1483158276
Category : Technology & Engineering
Languages : en
Pages : 598

Get Book Here

Book Description
Dislocation Modelling of Physical Systems contains the Proceedings of the International Conference held at Gainesville, Florida, USA on June 22-27, 1980. The book emphasizes the growing interest in relating dislocation theoretic concepts to engineering problems. Topic areas chosen ranged from the fundamental, such as properties of single dislocations, to the more applied, such as fracture. The papers are grouped specifically based on the main topics they discuss. These topics include fracture; point defects and dislocations; structure dependence of mechanical behavior; properties of single dislocations; plasticity and geometry of deformation; internal friction effects; and boundaries.

Dislocation Modelling of Physical Systems

Dislocation Modelling of Physical Systems PDF Author: Ashby, Michael F.
Publisher:
ISBN: 9780080267241
Category :
Languages : en
Pages : 0

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Book Description


Dislocation Modelling of Physical Systems

Dislocation Modelling of Physical Systems PDF Author: Michael F. Ashby
Publisher:
ISBN:
Category :
Languages : en
Pages : 586

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Book Description


Multiscale Modelling of Plasticity and Fracture by Means of Dislocation Mechanics

Multiscale Modelling of Plasticity and Fracture by Means of Dislocation Mechanics PDF Author: Peter Gumbsch
Publisher: Springer Science & Business Media
ISBN: 3709102839
Category : Technology & Engineering
Languages : en
Pages : 401

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Book Description
The latest state of simulation techniques to model plasticity and fracture in crystalline materials on the nano- and microscale is presented. Discrete dislocation mechanics and the neighbouring fields molecular dynamics and crystal plasticity are central parts. The physical phenomena, the theoretical basics, their mathematical description and the simulation techniques are introduced and important problems from the formation of dislocation structures to fatigue and fracture from the nano- to microscale as well as it’s impact on the macro behaviour are considered.

Computer Simulations of Dislocations

Computer Simulations of Dislocations PDF Author: Vasily Bulatov
Publisher: Oxford University Press
ISBN: 0198526148
Category : Computers
Languages : en
Pages : 301

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Book Description
The book presents a variety of methods for computer simulations of crystal defects in the form of "numerical recipes", complete with computer codes and analysis tools. By working through numerous case studies and problems, this book provides a useful starter kit for further method development in the computational materials sciences.

Dislocations, Mesoscale Simulations and Plastic Flow

Dislocations, Mesoscale Simulations and Plastic Flow PDF Author: L. Kubin
Publisher: Oxford University Press (UK)
ISBN: 019852501X
Category : Science
Languages : en
Pages : 320

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Book Description
In the past twenty years, new experimental approaches, improved models and progress in simulation techniques brought new insights into long-standing issues concerning dislocation-based plasticity in crystalline materials. Dislocation dynamics simulations are becoming accessible to a wide range of users. This book presents to students and researchers in materials science and mechanical engineering a comprehensive coverage of the physical body of knowledge on whichthey are based. This includes classical studies, which are too often ignored, recent experimental and theoretical advances, as well as a discussion of selected applications on various topics.

Metallurgical Applications of Shock-Wave and High-Strain Rate Phenomena

Metallurgical Applications of Shock-Wave and High-Strain Rate Phenomena PDF Author: Murr
Publisher: CRC Press
ISBN: 9780824776121
Category : Technology & Engineering
Languages : en
Pages : 1134

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Book Description
Emphasizing metallurgical and materials applications of shock-wave and high-strain-rate phenomena, this superb volume presents the work of the leading international authorities who examine the state of the art of explosive and related technologies in the context of metallurgical and materials processing and fabrication.

Materials Science for Structural Geology

Materials Science for Structural Geology PDF Author: Mervyn S. Paterson
Publisher: Springer Science & Business Media
ISBN: 9400755457
Category : Science
Languages : en
Pages : 255

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Book Description
This book sets out the basic materials science needed for understanding the plastic deformation of rocks and minerals. Although at atmospheric pressure or at relatively low environmental pressures, these materials tend to be brittle, that is, to fracture with little prior plastic deformation when non-hydrostatically stressed, they can undergo substantial permanent strain when stressed under environmental conditions of high confining pressure and high temperature, such as occur geologically in the Earth’s crust and upper mantle. Thus the plastic deformation of rocks and minerals is of fundamental interest in structural geology and geodynamics. In mountain-building processes and during convective stirring in the Earth’s mantle, rocks can undergo very large amounts of plastic flow, accompanied by substantial changes in microstructure. These changes in microstructure remain in the rocks as evidence of the past deformation history. There are a number of types of physical processes whereby rock and minerals can undergo deformation under geological conditions. The physics of these processes is set out in this book.

Mathematical Modeling of Dislocation Behavior and Its Application to Crystal Plasticity Analysis

Mathematical Modeling of Dislocation Behavior and Its Application to Crystal Plasticity Analysis PDF Author: Tetsuya Ohashi
Publisher: Springer Nature
ISBN: 3031378938
Category : Technology & Engineering
Languages : en
Pages : 94

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Book Description
There are several textbooks and monographs on dislocations and the mechanical and physical properties of metals, but most of them discuss the topics in terms of more or less one-dimensional or scalar quantities. However, actual metallic materials are often three-dimensionally heterogeneous in their microstructure, and this heterogeneity has a significant impact on the macroscopic mechanical properties. With advances in computational technology, the complexity introduced by spatial heterogeneity in the microstructure of metals can now be explored using numerical methods. This book explains in simple terms the idea of extending the continuum mechanics theory of plastic deformation of crystals to three-dimensional analysis and applying it to the analysis of more realistic models of metal microstructures. This book links solid mechanics and materials science by providing clear physical pictures and mathematical models of plastic slip deformation and the accumulation of dislocations and atomic vacancies in metallic materials. Both monotonic and cyclic loading cases are considered.

Crystal Plasticity at Micro- and Nano-scale Dimensions

Crystal Plasticity at Micro- and Nano-scale Dimensions PDF Author: Ronald W. Armstrong
Publisher: MDPI
ISBN: 3036508740
Category : Science
Languages : en
Pages : 322

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Book Description
The present collection of articles focuses on the mechanical strength properties at micro- and nanoscale dimensions of body-centered cubic, face-centered cubic and hexagonal close-packed crystal structures. The advent of micro-pillar test specimens is shown to provide a new dimensional scale for the investigation of crystal deformation properties. The ultra-small dimensional scale at which these properties are measured is shown to approach the atomic-scale level at which model dislocation mechanics descriptions of crystal slip and deformation twinning behaviors are proposed to be operative, including the achievement of atomic force microscopic measurements of dislocation pile-up interactions with crystal grain boundaries or with hard surface coatings. A special advantage of engineering designs made at such small crystal and polycrystalline dimensions is the achievement of an approximate order-of-magnitude increase in mechanical strength levels. Reasonable extrapolation of macro-scale continuum mechanics descriptions of crystal strength properties at micro- to nano-indentation hardness measurements are demonstrated, in addition to reports on persistent slip band observations and fatigue cracking behaviors. High-entropy alloy, superalloy and energetic crystal properties are reported along with descriptions of deformation rate sensitivities, grain boundary structures, nano-cutting, void nucleation/growth micromechanics and micro-composite electrical properties.