NUMERICAL MODELING OF MATERIALS UNDER EXTREME CONDITIONS ADVANCED STRUCTURED MATERIALS

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Numerical Modeling Of Materials Under Extreme Conditions

Author : Nicola Bonora
ISBN : 9783642542589
Genre : Technology & Engineering
File Size : 29.25 MB
Format : PDF
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The book presents twelve state of the art contributions in the field of numerical modeling of materials subjected to large strain, high strain rates, large pressure and high stress triaxialities, organized into two sections. The first part is focused on high strain rate-high pressures such as those occurring in impact dynamics and shock compression related phenomena, dealing with material response identification, advanced modeling incorporating microstructure and damage, stress waves propagation in solids and structures response under impact. The latter part is focused on large strain-low strain rates applications such as those occurring in technological material processing, dealing with microstructure and texture evolution, material response at elevated temperatures, structural behavior under large strain and multi axial state of stress.
Category: Technology & Engineering

Producing Security

Author : Stephen G. Brooks
ISBN : 9781400841301
Genre : Political Science
File Size : 55.85 MB
Format : PDF, ePub
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Scholars and statesmen have debated the influence of international commerce on war and peace for thousands of years. Over the centuries, analysts have generally treated the questions "Does international commerce influence security?" and "Do trade flows influence security?" as synonymous. In Producing Security, Stephen Brooks maintains that such an overarching focus on the security implications of trade once made sense but no longer does. Trade is no longer the primary means of organizing international economic transactions; rather, where and how multinational corporations (MNCs) organize their international production activities is now the key integrating force of global commerce. MNC strategies have changed in a variety of fundamental ways over the past three decades, Brooks argues, resulting in an increased geographic dispersion of production across borders. The author shows that the globalization of production has led to a series of shifts in the global security environment. It has a differential effect on security relations, in part because it does not encompass all countries and industries to the same extent. The book's findings indicate that the geographic dispersion of MNC production acts as a significant force for peace among the great powers. The author concludes that there is no basis for optimism that the globalization of production will promote peace elsewhere in the world. Indeed, he finds that it has a net negative influence on security relations among developing countries.
Category: Political Science

Comprehensive Nuclear Materials

Author : Todd R Allen
ISBN : 9780080560335
Genre : Technology & Engineering
File Size : 33.60 MB
Format : PDF, ePub, Mobi
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Comprehensive Nuclear Materials discusses the major classes of materials suitable for usage in nuclear fission, fusion reactors and high power accelerators, and for diverse functions in fuels, cladding, moderator and control materials, structural, functional, and waste materials. The work addresses the full panorama of contemporary international research in nuclear materials, from Actinides to Zirconium alloys, from the worlds' leading scientists and engineers. Critically reviews the major classes and functions of materials, supporting the selection, assessment, validation and engineering of materials in extreme nuclear environment Fully integrated with F-elements.net, a proprietary database containing useful cross-referenced property data on the lanthanides and actinides Details contemporary developments in numerical simulation, modelling, experimentation, and computational analysis, for effective implementation in labs and plants
Category: Technology & Engineering

Numerical Modelling Of Discrete Materials In Geotechnical Engineering Civil Engineering And Earth Sciences

Author : Heinz Konietzky
ISBN : 9058096807
Genre : Technology & Engineering
File Size : 39.13 MB
Format : PDF
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In this fully up-to-date volume, important new developments and applications of discrete element modelling are highlighted and brought together for presentation at the First International UDEC/3DEC Symposium. Papers covered the following key areas: * behaviour of masonry structures (walls, bridges, towers, columns) * stability and deformation of tunnels and caverns in fractured rock masses * geomechanical modelling for mining and waste repositories * rock reinforcement design (anchors, shotcrete, bolts) * mechanical and hydro-mechanical behaviour of dams and foundations * rock slope stability, deformation and failure mechanisms * modelling of fundamental rock mechanical problems * modelling of geological processes * constitutive laws for fractured rock masses and masonry structures * dynamic behaviour of discrete structures. Numerical Modelling of Discrete Materials in Geotechnical Engineering, Civil Engineering, and Earth Sciences provides an ultra-modern, in-depth analysis of discrete element modelling in a range of different fields, thus proving valuable reading for civil, mining, and geotechnical engineers, as well as other interested professionals.
Category: Technology & Engineering

Advanced Materials And Structures For Extreme Operating Conditions

Author : Jacek Skrzypek
ISBN : 3540743006
Genre : Science
File Size : 20.4 MB
Format : PDF, Kindle
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In the pages of this present monograph readers will find virtually everything they need to know about the latest advanced materials. The authors have covered almost every angle, including composites, functionally graded materials, and materials for high temperature service. They also examine advanced approaches to local and non-local analysis of localized damage, and provide a new description of crack deactivation. This highly informative volume also tackles the material properties for high temperature applications.
Category: Science

Nano Mechanics And Materials

Author : Wing Kam Liu
ISBN : 9780470035214
Genre : Technology & Engineering
File Size : 39.94 MB
Format : PDF, ePub, Docs
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Nanotechnology is a progressive research and development topic with large amounts of venture capital and government funding being invested worldwide. Nano mechanics, in particular, is the study and characterization of the mechanical behaviour of individual atoms, systems and structures in response to various types of forces and loading conditions. This text, written by respected researchers in the field, informs researchers and practitioners about the fundamental concepts in nano mechanics and materials, focusing on their modelling via multiple scale methods and techniques. The book systematically covers the theory behind multi-particle and nanoscale systems, introduces multiple scale methods, and finally looks at contemporary applications in nano-structured and bio-inspired materials.
Category: Technology & Engineering

Multiscale Structural Topology Optimization

Author : Liang Xia
ISBN : 9780081011867
Genre : Technology & Engineering
File Size : 69.1 MB
Format : PDF
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Multiscale Structural Topology Optimization discusses the development of a multiscale design framework for topology optimization of multiscale nonlinear structures. With the intention to alleviate the heavy computational burden of the design framework, the authors present a POD-based adaptive surrogate model for the RVE solutions at the microscopic scale and make a step further towards the design of multiscale elastoviscoplastic structures. Various optimization methods for structural size, shape, and topology designs have been developed and widely employed in engineering applications. Topology optimization has been recognized as one of the most effective tools for least weight and performance design, especially in aeronautics and aerospace engineering. This book focuses on the simultaneous design of both macroscopic structure and microscopic materials. In this model, the material microstructures are optimized in response to the macroscopic solution, which results in the nonlinearity of the equilibrium problem of the interface of the two scales. The authors include a reduce database model from a set of numerical experiments in the space of effective strain. Presents the first attempts towards topology optimization design of nonlinear highly heterogeneous structures Helps with simultaneous design of the topologies of both macroscopic structure and microscopic materials Helps with development of computer codes for the designs of nonlinear structures and of materials with extreme constitutive properties Focuses on the simultaneous design of both macroscopic structure and microscopic materials Includes a reduce database model from a set of numerical experiments in the space of effective strain
Category: Technology & Engineering