Multi Scale Modeling Of Microstructural Evolution In Structural Metallic Systems

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Multi-scale Modeling of Microstructural Evolution in Structural Metallic Systems

Author : Lei Zhao
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (12 download)

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Book Synopsis Multi-scale Modeling of Microstructural Evolution in Structural Metallic Systems by : Lei Zhao

Download or read book Multi-scale Modeling of Microstructural Evolution in Structural Metallic Systems written by Lei Zhao and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallic alloys are a widely used class of structural materials, and the mechanical properties of these alloys are strongly dependent on the microstructure. Therefore, the scientific design of metallic materials with superior mechanical properties requires the understanding of the microstructural evolution. Computational models and simulations offer a number of advantages over experimental techniques in the prediction of microstructural evolution, because they can allow studies of microstructural evolution in situ, i.e., while the material is mechanically loaded (meso-scale simulations), and bring atomic-level insights into the microstructure (atomistic simulations). In this thesis, we applied a multi-scale modeling approach to study the microstructural evolution in several metallic systems, including polycrystalline materials and metallic glasses (MGs). Specifically, for polycrystalline materials, we developed a coupled finite element model that combines phase field method and crystal plasticity theory to study the plasticity effect on grain boundary (GB) migration. Our model is not only coupled strongly (i.e., we include plastic driving force on GB migration directly) and concurrently (i.e., coupled equations are solved simultaneously), but also it qualitatively captures such phenomena as the dislocation absorption by mobile GBs. The developed model provides a tool to study the microstructural evolution in plastically deformed metals and alloys. For MGs, we used molecular dynamics (MD) simulations to investigate the nucleation kinetics in the primary crystallization in Al-Sm system. We calculated the time-temperature-transformation curves for low Sm concentrations, from which the strong suppressing effect of Sm solute on Al nucleation and its influencing mechanism are revealed. Also, through the comparative analysis of both Al attachment and Al diffusion in MGs, it has been found that the nucleation kinetics is controlled by interfacial attachment of Al, and that the attachment behavior takes place collectively and heterogeneously, similarly to Al diffusion in MGs. Finally, we applied the MD technique to study the origin of five-fold twinning nucleation during the solidification of Al base alloys. We studied several model alloys and reported the observed nucleation pathway. We found that the key factors controlling the five-fold twinning are the twin boundary energy and the formation of pentagon structures, and the twin boundary energy plays the dominant role in the five-fold twinning in the model alloys studied.

Multiscale Modeling and Experiments on Microstructural Evolution in Nuclear Materials

Author : Y. F. Zhang
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (942 download)

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Book Synopsis Multiscale Modeling and Experiments on Microstructural Evolution in Nuclear Materials by : Y. F. Zhang

Download or read book Multiscale Modeling and Experiments on Microstructural Evolution in Nuclear Materials written by Y. F. Zhang and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

From Microstructure Investigations to Multiscale Modeling

Author : Delphine Brancherie
Publisher : John Wiley & Sons
ISBN 13 : 1786302594
Total Pages : 304 pages
Book Rating : 4.7/5 (863 download)

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Book Synopsis From Microstructure Investigations to Multiscale Modeling by : Delphine Brancherie

Download or read book From Microstructure Investigations to Multiscale Modeling written by Delphine Brancherie and published by John Wiley & Sons. This book was released on 2018-01-04 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical behaviors of materials are highly influenced by their architectures and/or microstructures. Hence, progress in material science involves understanding and modeling the link between the microstructure and the material behavior at different scales. This book gathers contributions from eminent researchers in the field of computational and experimental material modeling. It presents advanced experimental techniques to acquire the microstructure features together with dedicated numerical and analytical tools to take into account the randomness of the micro-structure.

Multi-Physics and Multi-Scale Modeling and Simulation Methods for Nuclear Reactor Application

Author : Xingjie Peng
Publisher : Frontiers Media SA
ISBN 13 : 2832545378
Total Pages : 105 pages
Book Rating : 4.8/5 (325 download)

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Book Synopsis Multi-Physics and Multi-Scale Modeling and Simulation Methods for Nuclear Reactor Application by : Xingjie Peng

Download or read book Multi-Physics and Multi-Scale Modeling and Simulation Methods for Nuclear Reactor Application written by Xingjie Peng and published by Frontiers Media SA. This book was released on 2024-02-28 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: A nuclear reactor operates in an environment where complex multi-physics and multi-scale phenomena exist, and it requires consideration of coupling among neutronics, thermal hydraulics, fuel performance, chemical dynamics, and coupling between the reactor core and first circuit. Safe, reliable, and economical operation can be achieved by leveraging high-fidelity numerical simulation, and proper considerations for coupling among different physics and required to provide powerful numerical simulation tools. In the past simplistic models for some of the physics phenomena are used, with the recent development of advanced numerical methods, software design, and high-performance computing power, the appeal of multi-physics and multi-scale modeling and simulation has been broadened.

A Hierarchical Framework for the Multiscale Modeling of Microstructure Evolution in Heterogeneous Materials

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (893 download)

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Book Synopsis A Hierarchical Framework for the Multiscale Modeling of Microstructure Evolution in Heterogeneous Materials by :

Download or read book A Hierarchical Framework for the Multiscale Modeling of Microstructure Evolution in Heterogeneous Materials written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: All materials are heterogeneous at various scales of observation. The influence of material heterogeneity on nonuniform response and microstructure evolution can have profound impact on continuum thermomechanical response at macroscopic "engineering" scales. In many cases, it is necessary to treat this behavior as a multiscale process thus integrating the physical understanding of material behavior at various physical (length and time) scales in order to more accurately predict the thermomechanical response of materials as their microstructure evolves. The intent of the dissertation is to provide a formal framework for multiscale hierarchical homogenization to be used in developing constitutive models.

Multiscale Modeling of Additively Manufactured Metals

Author : Yi Zhang
Publisher : Elsevier
ISBN 13 : 0128225599
Total Pages : 252 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Multiscale Modeling of Additively Manufactured Metals by : Yi Zhang

Download or read book Multiscale Modeling of Additively Manufactured Metals written by Yi Zhang and published by Elsevier. This book was released on 2020-06-29 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiscale Modeling of Additively Manufactured Metals: Application to Laser Powder Bed Fusion Process provides comprehensive coverage on the latest methodology in additive manufacturing (AM) modeling and simulation. Although there are extensive advances within the AM field, challenges to predictive theoretical and computational approaches still hinder the widespread adoption of AM. The book reviews metal additive materials and processes and discusses multiscale/multiphysics modeling strategies. In addition, coverage of modeling and simulation of AM process in order to understand the process-structure-property relationship is reviewed, along with the modeling of morphology evolution, phase transformation, and defect formation in AM parts. Residual stress, distortion, plasticity/damage in AM parts are also considered, with scales associated with the spatial, temporal and/or material domains reviewed. This book is useful for graduate students, engineers and professionals working on AM materials, equipment, process, development and modeling. Includes the fundamental principles of additive manufacturing modeling techniques Presents various modeling tools/software for AM modeling Discusses various design methods and how to optimize the AM process using these models

Multiscale Modeling of Heterogenous Materials

Author : Oana Cazacu
Publisher : John Wiley & Sons
ISBN 13 : 1118623509
Total Pages : 275 pages
Book Rating : 4.1/5 (186 download)

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Book Synopsis Multiscale Modeling of Heterogenous Materials by : Oana Cazacu

Download or read book Multiscale Modeling of Heterogenous Materials written by Oana Cazacu and published by John Wiley & Sons. This book was released on 2013-03-01 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: A material's various proprieties is based on its microscopic and nanoscale structures. This book provides an overview of recent advances in computational methods for linking phenomena in systems that span large ranges of time and spatial scales. Particular attention is given to predicting macroscopic properties based on subscale behaviors. Given the book’s extensive coverage of multi-scale methods for modeling both metallic and geologic materials, it will be an invaluable reading for graduate students, scientists, and practitioners alike.

A Hierarchical Framework for the Multiscale Modeling of Microstructure Evolution in Heterogeneous Materials

Author : Darby J. Luscher
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (668 download)

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Book Synopsis A Hierarchical Framework for the Multiscale Modeling of Microstructure Evolution in Heterogeneous Materials by : Darby J. Luscher

Download or read book A Hierarchical Framework for the Multiscale Modeling of Microstructure Evolution in Heterogeneous Materials written by Darby J. Luscher and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: All materials are heterogeneous at various scales of observation. The influence of material heterogeneity on nonuniform response and microstructure evolution can have profound impact on continuum thermomechanical response at macroscopic "engineering" scales. In many cases, it is necessary to treat this behavior as a multiscale process. This research developed a hierarchical multiscale approach for modeling microstructure evolution. A theoretical framework for the hierarchical homogenization of inelastic response of heterogeneous materials was developed with a special focus on scale invariance principles needed to assure physical consistency across scales. Within this multiscale framework, the second gradient is used as a nonlocal kinematic link between the response of a material point at the coarse scale and the response of a neighborhood of material points at the fine scale. Kinematic consistency between two scales results in specific requirements for constraints on the fluctuation field. A multiscale internal state variable (ISV) constitutive theory is developed that is couched in the coarse scale intermediate configuration and from which an important new concept in scale transitions emerges, namely scale invariance of dissipation. At the fine scale, the material is treated using finite element models of statistical volume elements of microstructure. The coarse scale is treated using a mixed-field finite element approach. The coarse scale constitutive equations are implemented in a finite deformation hyperelastic inelastic integration scheme developed for second gradient constitutive models. An example problem based on an idealized porous microstructure is presented to illustrate the approach and highlight its predictive utility. This example and a few variations are explored to address the boundary-value-problem dependent nature of length scale parameters employed in nonlocal continuum theories. Finally, strategies for developing meaningful kinematic ISVs, free energy functions, and the associated evolution kinetics are presented. These strategies are centered on the goal of accurately representing the energy stored and dissipated during irreversible processes.

Model Validation and Uncertainty Quantification, Volume 3

Author : H. Sezer Atamturktur
Publisher : Springer Science & Business Media
ISBN 13 : 3319045520
Total Pages : 419 pages
Book Rating : 4.3/5 (19 download)

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Book Synopsis Model Validation and Uncertainty Quantification, Volume 3 by : H. Sezer Atamturktur

Download or read book Model Validation and Uncertainty Quantification, Volume 3 written by H. Sezer Atamturktur and published by Springer Science & Business Media. This book was released on 2014-04-11 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third volume of eight from the IMAC - XXXII Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on: Linear Systems Substructure Modelling Adaptive Structures Experimental Techniques Analytical Methods Damage Detection Damping of Materials & Members Modal Parameter Identification Modal Testing Methods System Identification Active Control Modal Parameter Estimation Processing Modal Data

Micromechanical Analysis and Multi-Scale Modeling Using the Voronoi Cell Finite Element Method

Author : Somnath Ghosh
Publisher : CRC Press
ISBN 13 : 1420094386
Total Pages : 714 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Micromechanical Analysis and Multi-Scale Modeling Using the Voronoi Cell Finite Element Method by : Somnath Ghosh

Download or read book Micromechanical Analysis and Multi-Scale Modeling Using the Voronoi Cell Finite Element Method written by Somnath Ghosh and published by CRC Press. This book was released on 2011-06-23 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: As multi-phase metal/alloy systems and polymer, ceramic, or metal matrix composite materials are increasingly being used in industry, the science and technology for these heterogeneous materials has advanced rapidly. By extending analytical and numerical models, engineers can analyze failure characteristics of the materials before they are integrat

Computational Fluid and Solid Mechanics 2003

Author : K.J Bathe
Publisher : Elsevier
ISBN 13 : 008052947X
Total Pages : 2485 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Computational Fluid and Solid Mechanics 2003 by : K.J Bathe

Download or read book Computational Fluid and Solid Mechanics 2003 written by K.J Bathe and published by Elsevier. This book was released on 2003-06-02 with total page 2485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bringing together the world's leading researchers and practitioners of computational mechanics, these new volumes meet and build on the eight key challenges for research and development in computational mechanics. Researchers have recently identified eight critical research tasks facing the field of computational mechanics. These tasks have come about because it appears possible to reach a new level of mathematical modelling and numerical solution that will lead to a much deeper understanding of nature and to great improvements in engineering design.The eight tasks are: The automatic solution of mathematical models Effective numerical schemes for fluid flows The development of an effective mesh-free numerical solution method The development of numerical procedures for multiphysics problems The development of numerical procedures for multiscale problems The modelling of uncertainties The analysis of complete life cycles of systems Education - teaching sound engineering and scientific judgement Readers of Computational Fluid and Solid Mechanics 2003 will be able to apply the combined experience of many of the world's leading researchers to their own research needs. Those in academic environments will gain a better insight into the needs and constraints of the industries they are involved with; those in industry will gain a competitive advantage by gaining insight into the cutting edge research being carried out by colleagues in academia. Features Bridges the gap between academic researchers and practitioners in industry Outlines the eight main challenges facing Research and Design in Computational mechanics and offers new insights into the shifting the research agenda Provides a vision of how strong, basic and exciting education at university can be harmonized with life-long learning to obtain maximum value from the new powerful tools of analysis

Phase Transformations in Materials

Author : G. Kostorz
Publisher : Wiley-VCH
ISBN 13 :
Total Pages : 732 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Phase Transformations in Materials by : G. Kostorz

Download or read book Phase Transformations in Materials written by G. Kostorz and published by Wiley-VCH. This book was released on 2001-10-25 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt: For all kinds of materials, phase transformations show common phenomena and mechanisms, and often turn a material, for example metals, multiphase alloys, ceramics or composites, into its technological useful form. The physics and thermodynamics of a transformation from the solid to liquid state or from one crystal form to another are therefore essential for creating high-performance materials. This handbook covers phase transformations, a general phenomenon central to understanding the behavior of materials and for creating high-performance materials. It will be an essential reference for all materials scientists, physicists and engineers involved in the research and development of new high performance materials. It is the revised and enhanced edition of the renowned book edited by the late P. Haasen in 1990 (Vol. 5, Materials Science and Technology).

Multiscale Modeling and Simulation of Composite Materials and Structures

Author : Young Kwon
Publisher : Springer Science & Business Media
ISBN 13 : 0387363181
Total Pages : 634 pages
Book Rating : 4.3/5 (873 download)

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Book Synopsis Multiscale Modeling and Simulation of Composite Materials and Structures by : Young Kwon

Download or read book Multiscale Modeling and Simulation of Composite Materials and Structures written by Young Kwon and published by Springer Science & Business Media. This book was released on 2007-12-04 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the state-of-the-art in multiscale modeling and simulation techniques for composite materials and structures. It focuses on the structural and functional properties of engineering composites and the sustainable high performance of components and structures. The multiscale techniques can be also applied to nanocomposites which are important application areas in nanotechnology. There are few books available on this topic.

Continuum Scale Simulation of Engineering Materials

Author : Dierk Raabe
Publisher : John Wiley & Sons
ISBN 13 : 3527604219
Total Pages : 885 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Continuum Scale Simulation of Engineering Materials by : Dierk Raabe

Download or read book Continuum Scale Simulation of Engineering Materials written by Dierk Raabe and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 885 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book fills a gap by presenting our current knowledge and understanding of continuum-based concepts behind computational methods used for microstructure and process simulation of engineering materials above the atomic scale. The volume provides an excellent overview on the different methods, comparing the different methods in terms of their respective particular weaknesses and advantages. This trains readers to identify appropriate approaches to the new challenges that emerge every day in this exciting domain. Divided into three main parts, the first is a basic overview covering fundamental key methods in the field of continuum scale materials simulation. The second one then goes on to look at applications of these methods to the prediction of microstructures, dealing with explicit simulation examples, while the third part discusses example applications in the field of process simulation. By presenting a spectrum of different computational approaches to materials, the book aims to initiate the development of corresponding virtual laboratories in the industry in which these methods are exploited. As such, it addresses graduates and undergraduates, lecturers, materials scientists and engineers, physicists, biologists, chemists, mathematicians, and mechanical engineers.

Modelling the Deformation, Recrystallization and Microstructure-Related Properties in Metals

Author : Jurij J Sidor
Publisher : Mdpi AG
ISBN 13 : 9783036523842
Total Pages : 144 pages
Book Rating : 4.5/5 (238 download)

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Book Synopsis Modelling the Deformation, Recrystallization and Microstructure-Related Properties in Metals by : Jurij J Sidor

Download or read book Modelling the Deformation, Recrystallization and Microstructure-Related Properties in Metals written by Jurij J Sidor and published by Mdpi AG. This book was released on 2021-11-15 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the special issue related to Modelling the Deformation, Recrystallization and Microstructure-Related Properties in Metals, we presented a wide spectrum of articles dealing with modelling of microstructural aspects involved in deformation and recrystallization as well as simulation of microstructure-based and texture-based properties in various metals. The latest advances in the theoretical interpretation of mesoscopic transformations based on experimental observations were partially discussed in the current special issue. The studies dealing with the modelling of structure-property relationships are likewise analyzed in the present collection of manuscripts. The contributions in the current collection evidently demonstrate that the properties of metallic materials are microstructure dependent and therefore the thermomechanical processing (TMP) of the polycrystalline aggregates should be strictly controlled to guarantee the desired bunch of qualities. Given this, the assessment of microstructure evolution in metallic systems is of extraordinary importance. Since the trial-error approach is a time-consuming and quite expensive methodology, the materials research community tends to employ a wide spectrum of computational approaches to simulate each chain of TMP and tune the processing variables to ensure the necessary microstructural state which will provide desired performance in the final product. Although many hidden facets of various technological processes and related microstructural changes were revealed in the submitted works by employing advanced computational approaches, nevertheless, the contributions collected in this issue clearly show that further efforts are required in the field of modelling to understand the complexity of material's world. The final goal of modelling efforts might be a development of a comprehensive model, which will be capable of describing many aspects of microstructure evolution during thermomechanical processing.

Mechanical Behavior of Materials

Author : William F. Hosford
Publisher : Cambridge University Press
ISBN 13 : 0521195691
Total Pages : 437 pages
Book Rating : 4.5/5 (211 download)

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Book Synopsis Mechanical Behavior of Materials by : William F. Hosford

Download or read book Mechanical Behavior of Materials written by William F. Hosford and published by Cambridge University Press. This book was released on 2010 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a textbook on the mechanical behavior of materials for mechanical and materials engineering. It emphasizes quantitative problem solving. This new edition includes treatment of the effects of texture on properties and microstructure in Chapter 7, a new chapter (12) on discontinuous and inhomogeneous deformation, and treatment of foams in Chapter 21.

Modeling, Characterizing and Reconstructing Mesoscale Microstructural Evolution in Particulate Processing and Solid-state Sintering

Download Modeling, Characterizing and Reconstructing Mesoscale Microstructural Evolution in Particulate Processing and Solid-state Sintering PDF Online Free

Author : Shaohua Chen
Publisher :
ISBN 13 :
Total Pages : 145 pages
Book Rating : 4.:/5 (14 download)

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Book Synopsis Modeling, Characterizing and Reconstructing Mesoscale Microstructural Evolution in Particulate Processing and Solid-state Sintering by : Shaohua Chen

Download or read book Modeling, Characterizing and Reconstructing Mesoscale Microstructural Evolution in Particulate Processing and Solid-state Sintering written by Shaohua Chen and published by . This book was released on 2018 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: In material science, microstructure plays a key role in determining properties, which further determine utility of the material. However, effectively measuring microstructure evolution in real time remains an challenge. To date, a wide range of advanced experimental techniques have been developed and applied to characterize material microstructure and structural evolution on different length and time scales. Most of these methods can only resolve 2D structural features within a narrow range of length scale and for a single or a series of snapshots. The currently available 3D microstructure characterization techniques are usually destructive and require slicing and polishing the samples each time a picture is taken. Simulation methods, on the other hand, are cheap, sample-free and versatile without the special necessity of taking care of the physical limitations, such as extreme temperature or pressure, which are prominent issues for experimental methods. Yet the majority of simulation methods are limited to specific circumstances, for example, first principle computation can only handle several thousands of atoms, molecular dynamics can only efficiently simulate a few seconds of evolution of a system with several millions particles, and finite element method can only be used in continuous medium, etc. Such limitations make these individual methods far from satisfaction to simulate macroscopic processes that a material sample undergoes up to experimental level accuracy. Therefore, it is highly desirable to develop a framework that integrate different simulation schemes from various scales to model complicated microstructure evolution and corresponding properties. Guided by such an objective, we have made our efforts towards incorporating a collection of simulation methods, including finite element method (FEM), cellular automata (CA), kinetic Monte Carlo (kMC), stochastic reconstruction method, Discrete Element Method (DEM), etc, to generate an integrated computational material engineering platform (ICMEP), which could enable us to effectively model microstructure evolution and use the simulated microstructure to do subsequent performance analysis. In this thesis, we will introduce some cases of building coupled modeling schemes and present the preliminary results in solid-state sintering. For example, we use coupled DEM and kinetic Monte Carlo method to simulate solid state sintering, and use coupled FEM and cellular automata method to model microstrucutre evolution during selective laser sintering of titanium alloy. Current results indicate that joining models from different length and time scales is fruitful in terms of understanding and describing microstructure evolution of a macroscopic physical process from various perspectives.