Download or read book Structure Property Relationships under Extreme Dynamic Environments written by Cyril Williams and published by Springer Nature. This book was released on 2022-05-31 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: The inelastic response and residual mechanical properties acquired from most shock compressed solids are quite different from those acquired from quasi-static or moderate strain rates. For instance, the residual hardness of many shock compressed metals has been found to be considerably lower than those loaded under quasi-static conditions to the same maximum stress. However, the residual hardness of shock compressed metals is much higher than those loaded quasi-statically to the same total strain. These observations suggest that the deformation mechanisms active during inelastic deformation under shock compression and quasi-static or moderate rates may be quite different. Therefore, the primary objective of this short book is to offer the reader a concise introduction on the Structure-Property Relationships concerning shock compressed metals and metallic alloys via shock recovery experiments. The first phase of the book, chapters 1 through 3 provides a brief historical perspective on the structure-property relationships as it pertains to shock compression science, then plastic deformation in shock compressed metals and metallic alloys is described in terms of deformation slip, deformation twinning, and their consequences to spall failure. Existing knowledge gaps and limitations on shock recovery experiments are also discussed. The fundamentals of shock wave propagation in condensed media are presented through the formation and stability of shock waves, then how they are treated using the Rankine-Hugoniot jump relations derived from the conservation of mass, momentum, and energy. The equation of states which govern the thermodynamic transition of a material from the unshock state to the shock state is briefly described and the elastic-plastic behavior of shock compressed solids is presented at the back end of the first phase of this book. The second phase of the book describes the geometry and design of shock recovery experiments using explosives, gas and powder guns. Then results derived from the residual mechanical properties, microstructure changes, and spall failure mechanisms in shock compressed metals and metallic alloys with FCC, BCC, and HCP crystal lattice structures are presented. Also, results on the residual microstructure of explosively compacted powders and powder mixtures are presented. Lastly, the book closes with the new frontiers in shock recovery experiments based on novel materials, novel microscopes, novel mechanical processing techniques, and novel time-resolved in-situ XRD shock experiments.
Download or read book The Integrated Test Analysis Process for Structural Dynamic Systems written by Robert Coppolino and published by Springer Nature. This book was released on 2022-05-31 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past 60 years, the U.S. aerospace community has developed, refined, and standardized an integrated approach to structural dynamic model verification and validation. One name for this overall approach is the Integrated Test Analysis Process (ITAP) for structural dynamic systems. ITAP consists of seven sequential tasks, namely: (1) definition of test article finite element models; (2) systematic modal test planning; (3) measured data acquisition; (4) measured data analysis; (5) experimental modal analysis; (6) systematic test-analysis correlation; and (7) reconciliation of finite element models and modal test data. Steps 1, 2, and 7 rely strictly on mathematical model disciplines, and steps 3 and 4 rely on laboratory disciplines and techniques. Current industry practice of steps 5 and 6 calls for interaction of mathematical model and laboratory disciplines, which compromises the objectivity of both modeling and laboratory disciplines. This book addresses technical content, strategies, and key relevant experiences related to all steps of ITAP, except for measured data acquisition which is the specialized domain of highly experienced laboratory professionals who contend with mechanical and electrical practicalities of instrumentation, excitation hardware, and data collection systems.
Download or read book Nonlinear Elastic and Inelastic Models for Shock Compression of Crystalline Solids written by John D. Clayton and published by Springer. This book was released on 2019-05-17 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes thermoelastic and inelastic deformation processes in crystalline solids undergoing loading by shock compression. Constitutive models with a basis in geometrically nonlinear continuum mechanics supply these descriptions. Large deformations such as finite strains and rotations, are addressed. The book covers dominant mechanisms of nonlinear thermoelasticity, dislocation plasticity, deformation twinning, fracture, flow, and other structure changes. Rigorous derivations of theoretical results are provided, with approximately 1300 numbered equations and an extensive bibliography of over 500 historical and modern references spanning from the 1920s to the present day. Case studies contain property data, as well as analytical, and numerical solutions to shock compression problems for different materials. Such materials are metals, ceramics, and minerals, single crystalline and polycrystalline. The intended audience of this book is practicing scientists (physicists, engineers, materials scientists, and applied mathematicians) involved in advanced research on shock compression of solid materials.
Download or read book Handbook of Nanoscopy 2 Volume Set written by Gustaaf van Tendeloo and published by John Wiley & Sons. This book was released on 2012-05-21 with total page 1484 pages. Available in PDF, EPUB and Kindle. Book excerpt: This completely revised successor to the Handbook of Microscopy supplies in-depth coverage of all imaging technologies from the optical to the electron and scanning techniques. Adopting a twofold approach, the book firstly presents the various technologies as such, before going on to cover the materials class by class, analyzing how the different imaging methods can be successfully applied. It covers the latest developments in techniques, such as in-situ TEM, 3D imaging in TEM and SEM, as well as a broad range of material types, including metals, alloys, ceramics, polymers, semiconductors, minerals, quasicrystals, amorphous solids, among others. The volumes are divided between methods and applications, making this both a reliable reference and handbook for chemists, physicists, biologists, materials scientists and engineers, as well as graduate students and their lecturers.
Download or read book 2011 2012 Assessment of the Army Research Laboratory written by Army Research Laboratory Technical Assessment Board and published by National Academies Press. This book was released on 2013-04-23 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: The charge of the Army Research Laboratory Technical Assessment Board (ARLTAB) is to provide biennial assessments of the scientific and technical quality of the research, development, and analysis programs at the Army Research Laboratory (ARL). The ARLTAB is assisted by six panels, each of which focuses on the portion of the ARL program conducted by one of ARL's six directorates1. When requested to do so by ARL, the ARLTAB also examines work that cuts across the directorates. For example, during 2011-2012, ARL requested that the ARLTAB examine crosscutting work in the areas of autonomous systems and network science. The overall quality of ARL's technical staff and their work continues to be impressive. Staff continue to demonstrate clear, passionate mindfulness of the importance of transitioning technology to support immediate and longer-term Army needs. Their involvement with the wider scientific and engineering community continues to expand. Such continued involvement and collaboration are fundamentally important for ARL's scientific and technical activities and need to include the essential elements of peer review and interaction through publications and travel to attend professional meetings, including international professional meetings. In general, ARL is working very well within an appropriate research and development niche and has been demonstrating significant accomplishments, as exemplified in the following discussion, which also addresses opportunities and challenges.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Reports Awareness Circular TRAC written by and published by . This book was released on 1988-05 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polymer Based Advanced Functional Materials for Energy and Environmental Applications written by Nithin Kundachira Subramani and published by Springer Nature. This book was released on 2022-01-01 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer-based advanced functional materials are one of most sought after products of this global high performance material demand as polymer-based materials guarantee both processing ease and mechanical flexibilities. This volume provides a comprehensive and updated review of major innovations in the field of polymer-based advanced functional materials which focuses on constructive knowledge on advanced multifunctional materials and their resultant techno-commercial applications. The contents aim at restricting the coverage to energy and environment related applications as the said two are the most emerging application domains of polymer-based advanced functional materials. It highlights the cutting-edge and recent research findings of polymer based advanced functional materials in energy and environment sectors wherein each chapter focuses on a specific energy and environment related application of polymer-based advanced functional materials, their preparation technique, nature enhancement achieved and allied factors. This volume would be of great interest to researchers, academicians and professionals, involved in polymers, chemistry, energy and environmental research, and other allied domains.
Download or read book OAR written by and published by . This book was released on 1967 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Air Force Research Resum s written by and published by . This book was released on with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Grants and Awards written by National Science Foundation (U.S.) and published by . This book was released on with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toughened Composites written by Sri Bandyopadhyay and published by CRC Press. This book was released on 2022-12-09 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers micro and macro aspects of toughened composites covering polymer matrix, metal matrix, ceramic matrix and nanomatrix. It gives the reader understanding of composite fabrication, construction, and lightweight yet high crack resistance performance, macroscopic testing supported by microscopic bonding and debonding features, models of stress transfer, and commercial features of developing cheaper yet high-quality materials. Features: Focuses on micro and macro aspects of toughening methods and principles of composite materials. Includes all types of composites including polymer matrix, metal matrix, ceramic matrix and nanomatrix. Covers corrosion resistance and oxidation resistance as well as solubility resistance. Discusses the use of recycled materials. Provides a good balance of long fibre, short fibre, nanoparticle and particulate modifiers. This book aims at researchers and professionals in materials science, composite materials, fracture mechanics, materials characterization and testing, properties and mechanics, nanomaterials, aerospace and automotive engineering and structural engineering.
Download or read book Air Force Research Resum s written by and published by . This book was released on 1968 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Processing Structure Property Relationships in Metals written by Alessandra Varone and published by MDPI. This book was released on 2019-11-04 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the industrial manufacturing of metals, the achievement of products featuring desired characteristics always requires the control of process parameters in order to obtain a suitable microstructure. The strict relationship among process parameters, microstructure, and mechanical properties is a matter of interest in different areas, such as foundry, plastic forming, sintering, welding, etc., and regards both well-established and innovative processes. Nowadays, circular economy and sustainable technological development are dominant paradigms and impose an optimized use of resources, a lower energetic impact of industrial processes and new tasks for materials and products. In this frame, this Special Issue covers a broad range of research works and contains research and review papers.
Download or read book Graduate Programs in Engineering and Applied Sciences 1984 written by and published by . This book was released on 1983 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Peterson s Guide to Graduate Programs in Engineering and Applied Sciences written by and published by . This book was released on 1991 with total page 1376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
