Plasticity in Motion

Plasticity in Motion PDF Author: Robert M. Foschia
Publisher: Rowman & Littlefield
ISBN: 1793639590
Category : Language Arts & Disciplines
Languages : en
Pages : 221

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Book Description
Plasticity in Motion: Sport, Gender, and Biopolitics argues that sport has a transformative power that, when engaged with habitually, can create bodies with the athletic ability to succeed at the incredible performances that captivate modern sports audiences. Robert M. Foschia draws heavily from the influential and extensive work of Catherine Malabou on plasticity – the ability to shape and form – and similarly argues that transformation is not always positive or infinite, with the potential for accidents, injuries, and excommunications. However, sport as a discursive space often precludes any mention of these negative transformations, asserting itself as pure potential and becoming, often to the exclusion of the feminine. What occurs if the feminine enters into this space? Foschia intentionally integrates the feminine back into hypermasculine discussions of sport, opening a new realm of possible transformations to the ways we play, watch, and think about sports. Scholars of communication, media studies, gender studies, rhetoric, and sports will find this book particularly useful.

Plasticity in Motion

Plasticity in Motion PDF Author: Robert M. Foschia
Publisher: Rowman & Littlefield
ISBN: 1793639590
Category : Language Arts & Disciplines
Languages : en
Pages : 221

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Book Description
Plasticity in Motion: Sport, Gender, and Biopolitics argues that sport has a transformative power that, when engaged with habitually, can create bodies with the athletic ability to succeed at the incredible performances that captivate modern sports audiences. Robert M. Foschia draws heavily from the influential and extensive work of Catherine Malabou on plasticity – the ability to shape and form – and similarly argues that transformation is not always positive or infinite, with the potential for accidents, injuries, and excommunications. However, sport as a discursive space often precludes any mention of these negative transformations, asserting itself as pure potential and becoming, often to the exclusion of the feminine. What occurs if the feminine enters into this space? Foschia intentionally integrates the feminine back into hypermasculine discussions of sport, opening a new realm of possible transformations to the ways we play, watch, and think about sports. Scholars of communication, media studies, gender studies, rhetoric, and sports will find this book particularly useful.

Dislocation Dynamics and Plasticity

Dislocation Dynamics and Plasticity PDF Author: Taira Suzuki
Publisher: Springer Science & Business Media
ISBN: 364275774X
Category : Science
Languages : en
Pages : 237

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Book Description
In the 1950s the direct observation of dislocations became possible, stimulat ing the interest of many research workers in the dynamics of dislocations. This led to major contributions to the understanding of the plasticity of various crys talline materials. During this time the study of metals and alloys of fcc and hcp structures developed remarkably. In particular, the discovery of the so-called in ertial effect caused by the electron and phonon frictional forces greatly influenced the quantitative understanding of the strength of these metallic materials. Statis tical studies of dislocations moving through random arrays of point obstacles played an important role in the above advances. These topics are described in Chaps. 2-4. Metals and alloys with bcc structure have large Peierls forces compared to those with fcc structure. The reasons for the delay in studying substances with bcc structure were mostly difficulties connected with the purification techniques and with microscopic studies of the dislocation core. In the 1970s, these difficulties were largely overcome by developments in experimental techniques and computer physics. Studies of dislocations in ionic and covalent bonding materials with large Peierls forces provided infonnation about the core structures of dislocations and their electronic interactions with charged particles. These are the main subjects in Chaps. 5-7.

Plasticity

Plasticity PDF Author: P.M. Dixit
Publisher: CRC Press
ISBN: 1466506180
Category : Science
Languages : en
Pages : 606

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Book Description
Explores the Principles of Plasticity Most undergraduate programs lack an undergraduate plasticity theory course, and many graduate programs in design and manufacturing lack a course on plasticity—leaving a number of engineering students without adequate information on the subject. Emphasizing stresses generated in the material and its effect, Plasticity: Fundamentals and Applications effectively addresses this need. This book fills a void by introducing the basic fundamentals of solid mechanics of deformable bodies. It provides a thorough understanding of plasticity theory, introduces the concepts of plasticity, and discusses relevant applications. Studies the Effects of Forces and Motions on Solids The authors make a point of highlighting the importance of plastic deformation, and also discuss the concepts of elasticity (for a clear understanding of plasticity, the elasticity theory must also be understood). In addition, they present information on updated Lagrangian and Eulerian formulations for the modeling of metal forming and machining. Topics covered include: Stress Strain Constitutive relations Fracture Anisotropy Contact problems Plasticity: Fundamentals and Applications enables students to understand the basic fundamentals of plasticity theory, effectively use commercial finite-element (FE) software, and eventually develop their own code. It also provides suitable reference material for mechanical/civil/aerospace engineers, material processing engineers, applied mechanics researchers, mathematicians, and other industry professionals.

Plasticity and Textures

Plasticity and Textures PDF Author: W. Gambin
Publisher: Springer Science & Business Media
ISBN: 9401597634
Category : Science
Languages : en
Pages : 254

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Book Description
The classical, phenomenological theory of plastically anisotropic materials has passed a long way: from the work of von Mises presented in 1928, and the HilI formulation given in 1948, to the latest papers on large elastic-plastic deformations of anisotropic metal sheets. A characteristic feature of this approach is a linear flow rule and a quadratic yield criterion. Mathematical simplicity of the theory is a reason of its numerous applications to the analysis of engineering structures during the onset of plastic deformations. However, such an approach is not sufficient for description of the metal forming processes, when a metal element undergoes very large plastic strains. If we take an initially isotropic piece of metal, it becomes plastically anisotropic during the forming process, and the induced anisotropy progressively increases. This fact strongly determines directions of plastic flow, and it leads to an unexpected strain localization in sheet elements. To explain the above, it is necessary to take into account a polycrystalline structure of the metal, plastic slips on slip systems of grains, crystallographic lattice rotations, and at last, a formation of textures and their evolution during the whole deformation process. In short, it is necessary to introduce the plasticity of crystals and polycrystals. The polycrystal analysis shows that, when the advanced plastic strains take place, some privileged crystallographic directions, called a crystallographic texture, occur in the material. The texture formation and evolution are a primary reason for the induced plastic anisotropy in pure metals.

Physical Basis of Plasticity in Solids

Physical Basis of Plasticity in Solids PDF Author: Jean-Claude Tol‚dano
Publisher: World Scientific
ISBN: 9814374059
Category : Science
Languages : en
Pages : 280

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Book Description
This book introduces the physical mechanism of the plastic deformation of solids, which relies essentially on the occurence and motion of dislocations. These are linear defects, specific of crystalline solids whose motion under external stresses explains the relative ease by which solids (metals in particular) can be deformed in order to give them desired shapes. The objective is to introduce the topic to undergraduate students, restricting to the main ideas and showing their relevance in interpreting phenomena well known to everyone (e.g. why are certain metals harder than others?), and finally training the students in the practice of calculating the simplest properties of dislocations.

Plasticity

Plasticity PDF Author: E. H. Lee
Publisher: Elsevier
ISBN: 1483156222
Category : Technology & Engineering
Languages : en
Pages : 630

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Book Description
Plasticity documents the proceedings of the Second Symposium on Naval Structural Mechanics held at Brown University, Rhode Island, 5-7 April 1960. It was sponsored jointly by the Office of Naval Research of the U.S. Navy and Brown University. The symposium was devoted to plasticity. The intention was to provide critical reviews of recent developments in certain areas of plasticity of particular current interest and importance, and to supplement these with short accounts of related current research work. The papers presented at the symposium covered the following areas: atomic theory of plastic flow and fracture; stress-strain relations including thermoplasticity and creep; basic theory including stability and uniqueness; boundary value problems including plates and shells; dynamic loading and plastic waves; and developments in design. Two talks were also held for the purpose of reviewing the present status of application of plasticity in design of naval vessels. The symposium was opened by Captain J. C. Myers on behalf of the Office of Naval Research and by Professor W. Prager on behalf of Brown University. Professor Prager closed the symposium by presenting a brief resume of the main accomplishments and trends in plasticity brought to light during the symposium.

Perceptual Learning

Perceptual Learning PDF Author: Manfred Fahle
Publisher: MIT Press
ISBN: 9780262062213
Category : Medical
Languages : en
Pages : 484

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Book Description
Perceptual learning is the specific and relatively permanent modification of perception and behaviour following sensory experience. This book presents advances made during the 1990s in this rapidly growing field.

The Mechanical and Thermodynamical Theory of Plasticity

The Mechanical and Thermodynamical Theory of Plasticity PDF Author: Mehrdad Negahban
Publisher: CRC Press
ISBN: 0849372305
Category : Science
Languages : en
Pages : 785

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Book Description
Born out of 15 years of courses and lectures on continuum mechanics, nonlinear mechanics, continuum thermodynamics, viscoelasticity, plasticity, crystal plasticity, and thermodynamic plasticity, The Mechanical and Thermodynamical Theory of Plasticity represents one of the most extensive and in-depth treatises on the mechanical and thermodynamical aspects of plastic and visicoplastic flow. Suitable for student readers and experts alike, it offers a clear and comprehensive presentation of multi-dimensional continuum thermodynamics to both aid in initial understanding and introduce and explore advanced topics. Covering a wide range of foundational subjects and presenting unique insights into the unification of disparate theories and practices, this book offers an extensive number of problems, figures, and examples to help the reader grasp the subject from many levels. Starting from one-dimensional axial motion in bars, the book builds a clear understanding of mechanics and continuum thermodynamics during plastic flow. This approach makes it accessible and applicable for a varied audience, including students and experts from engineering mechanics, mechanical engineering, civil engineering, and materials science.

Dynamic Plasticity

Dynamic Plasticity PDF Author: N. Cristescu
Publisher: Elsevier
ISBN: 0323163297
Category : Technology & Engineering
Languages : en
Pages : 627

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Book Description
Dynamic Plasticity discusses the problems encountered in the theory of dynamic deformation of plastic bodies. The book describes one-dimensional problems involving a single component of stress, particle velocity, and single spatial coordinate. The propagation of longitudinal elastic-plastic waves in thin rods or wires is a simple example of this problem of dynamic plasticity. Another one-dimensional problem, which has various possible transverse motions, is the dynamics of extensible strings. This problem is associated in calculations dealing with cables of suspension bridges, of elevator cables, of electric cables. The analogy with the mechanics of extensible strings can be extended to circular and rectangular membranes such as explained by Karunes and Onat. Karunes and Onat analyzed the propagation of transverse and longitudinal shock waves in such membranes using the Rakhmatulin theory for strings. The text also discusses axi-symmetrical problems and the problems of soil mechanics when applied to soft soils. The book can prove valuable to civil engineers, structural engineers, physicist, and students of mechanical engineering or industrial design.

Advances in Synaptic Plasticity

Advances in Synaptic Plasticity PDF Author: M. Baudry
Publisher: MIT Press
ISBN: 9780262024600
Category : Neuroplasticity
Languages : en
Pages : 368

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Book Description
This book, a follow-up to the editors' Synaptic Plasticity (MIT Press,1993), reports on the most recent trends in the field. The levels of analysis range from molecular to cellular and network, the unifying theme being the nature of the relationships between synaptic plasticity and information processing and storage. Many neurons exhibit plasticity; that is, they can change structurally or functionally, often in a lasting way. Plasticity is evident in such diverse phenomena as learning and memory, brain development, drug tolerance, sprouting of axon terminals after a brain lesion, and various cellular forms of activity-dependent synaptic plasticity such as long-term potentiation and long-term depression. This book, a follow-up to the editors' Synaptic Plasticity (MIT Press, 1993), reports on the most recent trends in the field. The levels of analysis range from molecular to cellular and network, the unifying theme being the nature of the relationships between synaptic plasticity and information processing and storage. Contributors Yael Amitai, Michel Baudry, Theodore W. Berger, Pierre-Alain Buchs, A.K. Butler, Franck A. Chaillan, Gilbert A. Chauvet, Marie-Françoise Chesselet, Barry W. Connors, Taraneh Ghaffari, Jay R. Gibson, Ziv Gil, Michel Khrestchatisky, Dietmar Kuhl, Carole E. Landisman, Gilles Laurent, Jim-Shih Liaw, David J. Linden, Katrina MacLeod, Henry Markram, W.V. Morehouse, Dominique Muller, J.A. Napieralski, Santiago Rivera, François S. Roman, Bernard Soumireu-Mourat, Oswald Steward, Mark Stopfer, F.G. Szele, Richard F. Thompson, Nicolas Toni, Bernard Truchet, Misha Tsodyks, K. Uryu, Ascher Uziel, Christopher S. Wallace, Yun Wang, Michael Wehr, Paul F. Worley, Xiaping Xie