Download or read book Mechanical Behavior of Nanocrystalline Materials and Application of Shear Punch Test written by Ramesh Kumar Guduru and published by . This book was released on 2006 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: Mechanical behavior, Amorphous metals, Finite element analysis, Shear punch test, Nanocrystalline materials.
Download or read book Mechanical Behavior of Nanocrystalline Materials and Application of Shear Punch Test written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanocrystalline (nc) materials show superior strength compared to conventional grain size materials. Synthesizing bulk nc materials often results in small quantities, which limits making large scale specimens for conventional testing such as tensile, compression etc. In such instances, miniaturized specimen test techniques are very useful. The intent of the present work was to study the mechanical behavior of nc materials and also to develop a miniaturized specimen testing procedure -"shear punch test (SPT)" for nc material testing. A new setup for SPT was built and the testing procedure was standardized using different conventional metals. A linear correlation between SPT measurements and tensile data was established. The effect of test setup parameters such as specimen thickness and the die-punch clearance was studied in order to rationalize the technique. Using Finite Element Analysis, SPT was modeled and the physical basis of through-thickness plastic zone development at shear yield measurements was examined. The deformation behavior and the state of stress at different stages of the punching operation during an SPT test were studied. In order to understand the mechanical behavior of various materials from conventional to amorphous through nano regime, studies were done on investigating the mechanical properties of a Zr -- based amorphous alloy (BMG -- 11 alloy) using SPT. Strain rate dependent deformation behavior was studied and at high strain rates reduced strength was attributed to thermal softening. In order to examine the applicability of SPT for testing of nc materials, initial experiments were carried out on electrodeposited nc Cu. The SPT and mini tensile experiments were conducted and compared. An attempt was made to examine the strain rate effect. The SPT technique was extended to measure the strain rate sensitivity and the activation volumes and compared with the isostrain rate tensile test measurements. The nc materials pure Fe, Fe-Pb allo.
Download or read book Miniaturized Testing of Engineering Materials written by V. Karthik and published by CRC Press. This book was released on 2016-09-15 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive overview of methods of characterizing the mechanical properties of engineering materials using specimen sizes in the micro-scale regime (0.3-5.0 mm). A range of issues associated with miniature specimen testing like correlation methodologies for data transferability between different specimen sizes, use of numerical simulation/analysis for data inversion, application to actual structures using scooped out samples or by in-situ testing, and more importantly developing a common code of practice are discussed and presented in a concise manner.
Download or read book Mechanical Properties of Nanocrystalline Materials written by James C. M. Li and published by CRC Press. This book was released on 2011-09-02 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book concentrates on both understanding and development of nanocrystalline materials. The original relation that connects grain size and strength, known as the Hall-Petch relation, is studied in the nanometer grain size region. The breakdown of such a relation is a challenge. Why and how to overcome it? Is the dislocation mechanism still operating when the grain size is very small, approaching the amorphous limit? How do we go from the microstructure information to the continuum description of the mechanical properties?
Download or read book Examination of Mechanical Behavior in Nanocrystalline Materials written by and published by . This book was released on 1991 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Properties of Nanostructured Materials and Nanocomposites written by Materials Research Society. Fall Meeting and published by . This book was released on 2004 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers from a December 2003 symposium review and discuss the science and technology of nanostructured materials and nanocomposites, with special emphasis placed on the relationships between their fabrication, structure, strength, and ductility. Major themes are nanoscience and nanoengineering of bulk and composite materials, thick coatings, and thin films with enhanced mechanical properties for structural and functional applications. The book will be of interest to researchers and graduate students in nanostructured materials science, and for engineers involved in the production and processing of nanocrystalline materials and nanocomposites for structural and functional applications. Annotation : 2004 Book News, Inc., Portland, OR (booknews.com).
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Behavior of Materials written by Marc A. Meyers and published by . This book was released on 2008 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes numerous examples and problems for student practice, this textbook is ideal for courses on the mechanical behaviour of materials taught in departments of mechanical engineering and materials science.
Download or read book Micromechanics and Nanomechanics of Composite Solids written by Shaker A. Meguid and published by Springer. This book was released on 2017-07-19 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book elucidates the most recent and highly original developments in the fields of micro- and nanomechanics and the corresponding homogenization techniques that can be reliably adopted and applied in determining the local properties, as well as the linear and nonlinear effective properties of the final architecture of these complex composite structures. Specifically, this volume, divided into three main sections—Fundamentals, Modeling, and Applications—provides recent developments in the mathematical framework of micro- and nanomechanics, including Green’s function and Eshelby’s inclusion problem, molecular mechanics, molecular dynamics, atomistic based continuum, multiscale modeling, and highly localized phenomena such as microcracks and plasticity. It is a compilation of the most recent efforts by a group of the world’s most talented and respected researchers. Ideal for graduate students in aerospace, mechanical, civil, material science, life sciences, and biomedical engineering, researchers, practicing engineers, and consultants, the book provides a unified approach in compiling micro- and nano-scale phenomena. · Elucidates recent and highly original developments in the fields of micromechanics and nanomechanics and the corresponding homogenization techniques; · Includes several new topics that are not covered in the current literature, such as micromechanics of metamaterials, electrical conductivity of CNT and graphene nanocomposites, ferroelectrics, piezoelectric, and electromagnetic materials; · Addresses highly localized phenomena such as coupled field problems, microcracks, inelasticity, dispersion of CNTs, synthesis, characterization and a number of interesting applications; · Maximizes readers’ ability to apply theories of micromechanics and nanomechanics to heterogeneous solids; · Illustrates application of micro- and nanomechanical theory to design novel composite and nanocomposite materials.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Properties of Nanocrystalline Metals Intermetalics and Multiphase Materials Determined by Tension Compression and Disk bend Techniques written by and published by . This book was released on 1997 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mechanical behavior of nanocrystalline metallic, intermetallic, and multiphase materials was investigated using tension, compression, and disk-bend techniques. Nanocrystalline NiAl, Al-Al3Zr, and Cu were synthesized by gas condensation and either resistive or electron beam heating followed by high temperature vacuum compaction. Disk- bend tests of nanocrystalline NiAl show evidence of improved ductility at room temperature in this normally extremely brittle material. In contrast, tension tests of multiphase nanocrystalline Al- Al3Zr samples show significant increases in strength by substantial reductions in ductility with decreasing grain size. Compression tests of nanocrystalline copper result in substantially higher yield stress and total elongation values than those measured in tensile tests. Implications for operative deformation mechanisms in these materials are discussed.
Download or read book Metals Abstracts written by and published by . This book was released on 1998-04 with total page 1176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts Index written by and published by . This book was released on 1996 with total page 1622 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Radiation on Materials written by Martin L. Grossbeck and published by ASTM International. This book was released on 2004 with total page 767 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Materials Design and Applications written by Lucas F. M. da Silva and published by Springer. This book was released on 2017-03-11 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume features fundamental research and applications in the field of the design and application of engineering materials, predominantly within the context of mechanical engineering applications. This includes a wide range of materials engineering and technology, including metals, e.g., polymers, composites, and ceramics. Advanced applications would include manufacturing in the new or newer materials, testing methods, multi-scale experimental and computational aspects. This book features fundamental research and applications in the design of engineering materials, predominantly within the context of mechanical engineering applications such as automobile, railway, marine, aerospace, biomedical, pressure vessel technology, and turbine technology. It covers a wide range of materials, including metals, polymers, composites, and ceramics. Advanced applications include the manufacturing of new materials, testing methods, multi-scale experimental and computational aspects. p>
Download or read book Testing of the Plastic Deformation of Metals written by T. W. Clyne and published by Cambridge University Press. This book was released on 2021-06-10 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover a novel approach to the subject, providing detailed information about established and innovative mechanical testing procedures.
Download or read book Nanomaterials by Severe Plastic Deformation written by Michael J. Zehetbauer and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings of the "Second International Conference on Nanomaterials by Severe Plastic Deformation" review the enormous scientific avalanche that has been developing in the field over recent years. A valuable resource for any scientist and engineer working in this emerging field of nanotechnology.
