Download or read book Microstructural Evolution and Mechanical Response of Materials by Design and Modeling written by Aniket Kumar Dutt and published by . This book was released on 2017 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modeling Microstructural Evolution and the Mechanical Response of Superplastic Materials written by and published by . This book was released on 1993 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: A model has been developed that accounts for grain growth during, superplastic flow and its subsequent influence on stress-strain-strain rate behavior. These studies are experimentally based and have involved two different types of superplastic materials -- a quasi-single phase metal (Coronze 638) and a microduplex metal (ultrahigh-carbon steel - UHCS). In both materials the kinetics of strain-enhanced grain growth have been studied as a function of strain, strain rate and temperature. An equation for the rate of grain growth has been developed that incorporates the influence of temperature. The evolution of the grain size distribution during superplastic deformation has also been investigated. Our model integrates grain growth laws derived from these studies with two mechanism based, rate dependent constitutive laws to predict the stress-strainstrain rate behavior of materials during superplastic deformation. The influence of crain size distribution and its evolution with strain and strain rate on the stress-strain-strain rate behavior has been represented through the use of distributed parameters. The model can capture the stress-strain-strain rate behavior over a wide range of strains and strain rates with a single set of parameters. Many subtle features of the mechanical response of these materials can be adequately predicted.

Download or read book Modeling and Simulation for Material Selection and Mechanical Design written by George E. Totten and published by CRC Press. This book was released on 2003-12-02 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference describes advanced computer modeling and simulation procedures to predict material properties and component design including mechanical properties, microstructural evolution, and materials behavior and performance. The book illustrates the most effective modeling and simulation technologies relating to surface-engineered compounds, fastener design, quenching and tempering during heat treatment, and residual stresses and distortion during forging, casting, and heat treatment. With contributions from internationally recognized experts in the field, it enables researchers to enhance engineering processes and reduce production costs in materials and component development.

Download or read book Making the Connection Between Microstructure and Mechanics written by and published by . This book was released on 2003 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of microstructural control is to optimize materials properties. To that end, they have developed sophisticated and successful computational models of both microstructural evolution and mechanical response. However, coupling these models to quantitatively predict the properties of a given microstructure poses a challenge. This problem arises because most continuum response models, such as finite element, finite volume, or material point methods, do not incorporate a real length scale. Thus, two self-similar polycrystals have identical mechanical properties regardless of grain size, in conflict with theory and observations. In this project, they took a tiered risk approach to incorporate microstructure and its resultant length scales in mechanical response simulations. Techniques considered include low-risk, low-benefit methods, as well as higher-payoff, higher-risk methods. Methods studied include a constitutive response model with a local length-scale parameter, a power-law hardening rate gradient near grain boundaries, a local Voce hardening law, and strain-gradient polycrystal plasticity. These techniques were validated on a variety of systems for which theoretical analyses and/or experimental data exist. The results may be used to generate improved constitutive models that explicitly depend upon microstructure and to provide insight into microstructural deformation and failure processes. Furthermore, because mechanical state drives microstructural evolution, a strain-enhanced grain growth model was coupled with the mechanical response simulations. The coupled model predicts both properties as a function of microstructure and microstructural development as a function of processing conditions.

Download or read book Mechanical Behavior of Materials written by Rajiv S. Mishra and published by Butterworth-Heinemann. This book was released on 2024-01-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical Behavior of Materials: Deformation and Design is the first textbook to adopt a design-led approach to the teaching of mechanical behavior of materials in which the underlying fundamental science is presented in the context of design. This approach has been found to help motivate and engage students through real-life case studies and illustrative applications. In addition to the design-led approach, Mishra and Charit cover newer content not found in other textbooks, such as recent advances in microstructural characterization techniques and up-to-date presentation of fundamentals that link the microstructure of engineering materials with realistic mechanical response.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modeling Microstructural Evolution and Phase Transformations in Material Science written by Muhammad Ajmal Choudhary and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 2013 2014 Assessment of the Army Research Laboratory written by National Research Council and published by National Academies Press. This book was released on 2015-04-16 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Research Council's Army Research Laboratory Technical Assessment Board (ARLTAB) provides biennial assessments of the scientific and technical quality of the research, development, and analysis programs at the Army Research Laboratory, focusing on ballistics sciences, human sciences, information sciences, materials sciences, and mechanical sciences. This report discusses the biennial assessment process used by ARLTAB and its five panels; provides detailed assessments of each of the ARL core technical competency areas reviewed during the 2013-2014 period; and presents findings and recommendations common across multiple competency areas.

Download or read book Retooling Manufacturing written by National Research Council and published by National Academies Press. This book was released on 2004-09-30 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the Department of Defense continues development of the future warrior system, the difficulty of moving rapidly from design to manufacturing for complex technologies is becoming a major concern. In particular, there are communication gaps between design and manufacturing that hinder rapid development of new products important for these future military developments. To help address those concerns, DOD asked the NRC to develop a framework for "bridging" these gaps through data management, modeling, and simulation. This report presents the results of this study. It provides a framework for virtual design and manufacturing and an assessment of the necessary tools; an analysis of the economic dimensions; an examination of barriers to virtual design and manufacturing in the DOD acquisition process; and a series of recommendations and research needs.

Download or read book Energy Materials Coordinating Committe EMaCC Fiscal Year 2002 Annual Technical Report written by and published by DIANE Publishing. This book was released on with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

Download or read book Modelling the Microstructural Evolution of Engineering Materials written by Mark G. Cornforth and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sintering From Empirical Observations to Scientific Principles written by Randall German and published by Butterworth-Heinemann. This book was released on 2014-02-07 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: As sintering applications march toward a $30 billion global business, the models for sintering have progressed, but generally follow behind observation. Documentation of the steps needed to build to a quantitative and predictive theory are often missed. Sintering: From Empirical Observations to Scientific Principles partitions sintering applications and observations to show critical turning points required to establish modern sintering as a predictive science. This book, written by the most cited author in his field, is laced with people, organizations, critical steps, and important formulations in a mixture of history, personalities, and applications. Exploring how insights in seemingly unrelated fields sparked progress, it is also a teaching tool to show where there is success, where there are problems, and how to organize teams to leapfrog to new applications or plateaus of use. Randall German's Sintering: From Empirical Observations to Scientific Principles is a platform for directly addressing the critical control parameters in these new research and development efforts. - Shows how the theories and understanding of sintering were developed and improved over time, and how different products were developed, ultimately leading to important knowledge and lessons for solving real sintering problems - Covers all the necessary infrastructure of sintering theory and practice, such as atomic theory, surface energy, microstructure, and measurement and observation tools - Introduces the history and development of such early sintered products as porcelain, tungsten lamp filaments, bronze bearings, steel automotive components, platinum crucibles and more

Download or read book Energy Materials Coordinating Committe EMaCC Fiscal Year 2001 Annual Technical Report written by and published by DIANE Publishing. This book was released on with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dynamic Behavior of Materials written by Mikko Hokka and published by Elsevier. This book was released on 2023-11-21 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Behavior of Materials: Fundamentals, Material Models, and Microstructure Effects provides readers with the essential knowledge and tools necessary to determine best practice design, modeling, simulation and application strategies for a variety of materials while also covering the fundamentals of how material properties and behavior are affected by material structure and high strain rates. The book examines the relationships between material microstructure and consequent mechanical properties, enabling the development of materials with improved performance and more effective design of parts and components for high-rate applications. Sections cover the fundamentals of dynamic material behavior, with chapters studying dynamic elasticity and wave propagation, dynamic plasticity of crystalline materials, ductile fracture, brittle fracture, adiabatic heating and strain localization, response to shock loading, various material characterization methods, such as the Hopkinson Bar Technique, the Taylor Impact Experiment, different shock loading experiments, recent advances in dynamic material behavior, the dynamic behaviors of nanocrystalline materials, bulk metallic glasses, additively manufactured materials, ceramics, concrete and concrete-reinforced materials, geomaterials, polymers, composites, and biomaterials, and much more. - Focuses on the relationship between material microstructure and resulting mechanical responses - Covers the fundamentals, characterization methods, modeling techniques, applications and recent advances of the dynamic behavior of a broad array of materials - Includes insights into manufacturing and processing techniques that enable more effective material design and application

Download or read book Deformation Processing written by Walter A. Backofen and published by . This book was released on 1972 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deformation Mechanisms Microstructure Evolution and Mechanical Properties of Nanoscale Materials Volume 1297 written by Julia R. Greer and published by Materials Research Society. This book was released on 2011-05-02 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Symposium P, "Deformation Mechanisms, Microstructure Evolution, and Mechanical Properties of Nanoscale Materials," was held Nov. 29-Dec. 3 at the 2010 MRS Fall Meeting in Boston, Massachusetts. This resultant volume addresses the topic of materials used in next-generation technological devices. These devices are used for a variety of applications-ranging from biomedical to space to energy-related-and will be subjected to non-ambient temperatures and high stresses and pressures. A variety of advanced nanomaterials and nanoscaled architectures have been proposed to meet these stringent demands. However, a complete understanding of the mechanisms that govern deformation at these scales is still elusive. This volume focuses on providing the state-of-the-art research on the mechanical response of nano- and microscale components that may comprise these devices and highlights emerging topics in novel mechanical testing techniques, in situ microscopy, high- and low-temperature deformation mechanisms, and mechanical property characterization of materials, as well as recent advances in atomistic and multiscale modeling of nanomaterials.