Multiscale Structural Topology Optimization Book

Multiscale Structural Topology Optimization


  • Author : Liang Xia
  • Publisher : Elsevier
  • Release Date : 2016-04-27
  • Genre: Technology & Engineering
  • Pages : 184
  • ISBN 10 : 9780081011867

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Multiscale Structural Topology Optimization Excerpt :

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

Multiscale Structural Topology Optimization Book

Multiscale Structural Topology Optimization


  • Author : Liang Xia
  • Publisher : Unknown
  • Release Date : 2016-04-04
  • Genre: Structural optimization
  • Pages : 184
  • ISBN 10 : 1785481002

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Multiscale Structural Topology Optimization Excerpt :

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

Topology Optimization Design of Heterogeneous Materials and Structures Book

Topology Optimization Design of Heterogeneous Materials and Structures


  • Author : Daicong Da
  • Publisher : John Wiley & Sons
  • Release Date : 2020-02-26
  • Genre: Mathematics
  • Pages : 200
  • ISBN 10 : 9781786305589

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Topology Optimization Design of Heterogeneous Materials and Structures Excerpt :

This book pursues optimal design from the perspective of mechanical properties and resistance to failure caused by cracks and fatigue. The book abandons the scale separation hypothesis and takes up phase-field modeling, which is at the cutting edge of research and is of high industrial and practical relevance. Part 1 starts by testing the limits of the homogenization-based approach when the size of the representative volume element is non-negligible compared to the structure. The book then introduces a non-local homogenization scheme to take into account the strain gradient effects. Using a phase field method, Part 2 offers three significant contributions concerning optimal placement of the inclusion phases. Respectively, these contributions take into account fractures in quasi-brittle materials, interface cracks and periodic composites. The topology optimization proposed has significantly increased the fracture resistance of the composites studied.

Multiscale Optimization And Materials Design Book

Multiscale Optimization And Materials Design


  • Author : Jun Yan
  • Publisher : World Scientific
  • Release Date : 2020-12-29
  • Genre: Technology & Engineering
  • Pages : 264
  • ISBN 10 : 9789811216558

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Multiscale Optimization And Materials Design Excerpt :

The book presents a set of novel, efficient and systematic concurrent multiscale optimization methods by considering the distribution of the material in macro-scale and the unit-cell configuration design in micro-scale simultaneously. Different from the traditional optimization method that is performed in a single scale, the proposed methods could generate a great deal of improvements in structural performance through the multiscale structure-material concurrent optimum design.The proposed theory and methods are related to statics, dynamics, thermoelastics and the coupling of different physical fields. Therefore, it provides a comprehensive designing scheme when multiple factors are taken into account. For example, the designing scheme can have a great significance on enhancing the structural performances under coupled multi-physical fields, such as load bearing capacity, vibration resistance ability, and safety under thermal stress and so on.Several numerical examples are highlighted in this unique volume based on practical engineering applications. The examples collectively demonstrate drastically improved designs featuring excellent unit-cell configuration and highly regular macroscale material distribution in a variety of industrial applications.

Isogeometric Topology Optimization Book

Isogeometric Topology Optimization


  • Author : Jie Gao
  • Publisher : Springer Nature
  • Release Date : 2022-11-30
  • Genre: Electronic books
  • Pages : 230
  • ISBN 10 : 9789811917707

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Isogeometric Topology Optimization Excerpt :

This book provides a systematic description about the development of Isogeometric Topology Optimization (ITO) method using the density, and then addresses the effectiveness and efficiency of the ITO method on several design problems, including multi-material structures, stress-minimization structures, piezoelectric structures and also with the uniform manufacturability, ultra-lightweight architected materials with extreme bulk/shear moduli, auxetic metamaterials and auxetic meta-composites with the NPRs behavior in microstructures. A detailed MATLAB implementation of the ITO method with an in-house code "IgaTop" is also presented.

Testing and Modeling of Cellular Materials Book

Testing and Modeling of Cellular Materials


  • Author : Derek G Spear
  • Publisher : CRC Press
  • Release Date : 2022-12-30
  • Genre: Technology & Engineering
  • Pages : 207
  • ISBN 10 : 9781000813111

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Testing and Modeling of Cellular Materials Excerpt :

Testing and Modeling of Cellular Materials discusses the characterization of cellular lattices through quasi-static and dynamic testing for use in light-weighting or energy-absorbing applications. Covering cellular materials, specifically additively manufactured lattices, this book further progresses into dynamic testing and modeling techniques for computational simulations. It presents modeling and simulation techniques used for cellular materials and evaluates them against experimental results to illustrate the material response under various conditions. The book also includes a case study of high-velocity impact that highlights the high strain rate effects on the cellular lattices. Features: • Covers different testing techniques used in quasi-static and dynamic material characterization of cellular materials. • Discusses additive manufacturing techniques for lattice specimen fabrication. • Analyzes different finite element modeling techniques for quasi-static and dynamic loading conditions. • Presents a comparison and development of a phenomenological material model for use in computational analysis at various loading rates. • Explores impact stress wave analysis under high-velocity loading. The book will be useful for researchers and engineers working in the field of materials modeling and mechanics of materials.

Topology Optimization Book

Topology Optimization


  • Author : Martin Philip Bendsoe
  • Publisher : Springer Science & Business Media
  • Release Date : 2013-04-17
  • Genre: Mathematics
  • Pages : 370
  • ISBN 10 : 9783662050866

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Topology Optimization Excerpt :

The topology optimization method solves the basic enginee- ring problem of distributing a limited amount of material in a design space. The first edition of this book has become the standard text on optimal design which is concerned with the optimization of structural topology, shape and material. This edition, has been substantially revised and updated to reflect progress made in modelling and computational procedures. It also encompasses a comprehensive and unified description of the state-of-the-art of the so-called material distribution method, based on the use of mathematical programming and finite elements. Applications treated include not only structures but also materials and MEMS.

Topology Optimization in Engineering Structure Design Book

Topology Optimization in Engineering Structure Design


  • Author : Jihong Zhu
  • Publisher : Elsevier
  • Release Date : 2016-11-08
  • Genre: Technology & Engineering
  • Pages : 294
  • ISBN 10 : 9780081021194

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Topology Optimization in Engineering Structure Design Excerpt :

Topology Optimization in Engineering Structure Design explores the recent advances and applications of topology optimization in engineering structures design, with a particular focus on aircraft and aerospace structural systems. To meet the increasingly complex engineering challenges provided by rapid developments in these industries, structural optimization techniques have developed in conjunction with them over the past two decades. The latest methods and theories to improve mechanical performances and save structural weight under static, dynamic and thermal loads are summarized and explained in detail here, in addition to potential applications of topology optimization techniques such as shape preserving design, smart structure design and additive manufacturing. These new design strategies are illustrated by a host of worked examples, which are inspired by real engineering situations, some of which have been applied to practical structure design with significant effects. Written from a forward-looking applied engineering perspective, the authors not only summarize the latest developments in this field of structure design but also provide both theoretical knowledge and a practical guideline. This book should appeal to graduate students, researchers and engineers, in detailing how to use topology optimization methods to improve product design. Combines practical applications and topology optimization methodologies Provides problems inspired by real engineering difficulties Designed to help researchers in universities acquire more engineering requirements

High Performance and Optimum Design of Structures and Materials V Book

High Performance and Optimum Design of Structures and Materials V


  • Author : S. Hernandez
  • Publisher : WIT Press
  • Release Date : 2022-09-13
  • Genre: Technology & Engineering
  • Pages : 210
  • ISBN 10 : 9781784664718

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High Performance and Optimum Design of Structures and Materials V Excerpt :

The use of novel materials and new structural concepts nowadays is not restricted to highly technical areas like aerospace, aeronautical applications or the automotive industry, but affects all engineering fields including those such as civil engineering and architecture. The included contributions highlight the latest developments in design and manufacturing. Most high-performance structures require the development of a generation of new materials, which can more easily resist a range of external stimuli or react in a non-conventional manner. Particular emphasis is placed on intelligent structures and materials as well as the application of computational methods for their modelling, control and management. The book also addresses the topic of design optimisation. Contributions cover numerical methods, different optimisation techniques and new software. Optimisation problems include those related to the size, shape and topology of structures and materials. Optimisation techniques have much to offer to those involved in the design of new industrial products, as the appearance of powerful commercial computer codes has created a fertile field for the incorporation of optimisation in the design process of all engineering disciplines. The performance of structures under shock and impact loads is another area covered. The increasing need to protect civilian infrastructure and industrial facilities against unintentional loads arising from accidental impact and explosion events as well as terrorist attacks is reflected in the sustained interest worldwide. While advances have been made in recent decades, many challenges remain, such as developing more effective and efficient blast and impact mitigation approaches or assessing the uncertainties associated with large and small scale testing and validation of numerical and analytical models. The overall aim is to move towards a better understanding of the critical issues relating to the testing behaviour, modelling and analyses

Evolutionary Structural Optimization Book

Evolutionary Structural Optimization


  • Author : Y.M. Xie
  • Publisher : Springer
  • Release Date : 2012-12-06
  • Genre: Technology & Engineering
  • Pages : 188
  • ISBN 10 : 9781447109853

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Evolutionary Structural Optimization Excerpt :

Evolutionary Structural Optimization (ESO) is a design method based on the simple concept of gradually removing inefficient material from a structure as it is being designed. Through this method, the resulting structure will evolve towards its optimum shape. The latest techniques and results of ESO are presented here, illustrated by numerous clear and detailed examples. Sections cover the fundamental aspects of the method, the application to multiple load cases and multiple support environments, frequency optimization, stiffness and displacement constraints, buckling, jointed frame structures, shape optimization, and stress reduction. This is followed by a section describing Evolve97, a software package which will allow readers to try the ideas of ESO themselves and to solve their optimization problems. This software is provided on a computer diskette which accompanies the book.

Advances in Structural and Multidisciplinary Optimization Book

Advances in Structural and Multidisciplinary Optimization


  • Author : Axel Schumacher
  • Publisher : Springer
  • Release Date : 2017-12-04
  • Genre: Science
  • Pages : 2115
  • ISBN 10 : 9783319679884

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Advances in Structural and Multidisciplinary Optimization Excerpt :

The volume includes papers from the WSCMO conference in Braunschweig 2017 presenting research of all aspects of the optimal design of structures as well as multidisciplinary design optimization where the involved disciplines deal with the analysis of solids, fluids or other field problems. Also presented are practical applications of optimization methods and the corresponding software development in all branches of technology.

Advances in Computational Plasticity Book

Advances in Computational Plasticity


  • Author : Eugenio Oñate
  • Publisher : Springer
  • Release Date : 2017-09-09
  • Genre: Technology & Engineering
  • Pages : 434
  • ISBN 10 : 9783319608853

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Advances in Computational Plasticity Excerpt :

This book brings together some 20 chapters on state-of-the-art research in the broad field of computational plasticity with applications in civil and mechanical engineering, metal forming processes, geomechanics, nonlinear structural analysis, composites, biomechanics and multi-scale analysis of materials, among others. The chapters are written by world leaders in the different fields of computational plasticity.

Sustainable Materials and Smart Practices Book

Sustainable Materials and Smart Practices


  • Author : M. Vasudevan
  • Publisher : Materials Research Forum LLC
  • Release Date : 2022-06-15
  • Genre: Technology & Engineering
  • Pages : 484
  • ISBN 10 : 9781644901953

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Sustainable Materials and Smart Practices Excerpt :

This book presents recent research on sustainable building materials and their various applications. Topics include such items as fiber reinforced concrete, the use of mineral admixtures. self-sensing cement composites, the use of nanomaterials for structural health monitoring and the production of geopolymer mortar. Keywords: Light Transmitting Concrete, Self-Compacting Concrete, Light-Weight Concrete, Polymer Concrete, Porous Concrete, Eco-Friendly Building Material, Cement Composite, Geopolymer Composites, Sustainable Bricks, Cement, Sisal Fiber, Glass Fiber, Nanomaterials, Metakaoline, Fly Ash, Silica Fume, Rice Husk Ash, Oyster Shells, Bitumen, Sugarcane Bagasse Ash, Herbocrete, Waste Foundry Sand, Swell Pressure of Clay, Quarry Dust, Sensors, Topology Optimization, Soil Stabilization.

Shape Optimization by the Homogenization Method Book

Shape Optimization by the Homogenization Method


  • Author : Gregoire Allaire
  • Publisher : Springer Science & Business Media
  • Release Date : 2012-12-06
  • Genre: Technology & Engineering
  • Pages : 458
  • ISBN 10 : 9781468492866

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Shape Optimization by the Homogenization Method Excerpt :

This book provides an introduction to the theory and numerical developments of the homogenization method. It's main features are: a comprehensive presentation of homogenization theory; an introduction to the theory of two-phase composite materials; a detailed treatment of structural optimization by using homogenization; a complete discussion of the resulting numerical algorithms with many documented test problems. It will be of interest to researchers, engineers, and advanced graduate students in applied mathematics, mechanical engineering, and structural optimization.