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Dynamic Response Of Pre Stressed Spatially Curved Thin Walled Beams Of Open Profile
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Book Synopsis Dynamic Response of Pre-Stressed Spatially Curved Thin-Walled Beams of Open Profile by : Yury A. Rossikhin
Download or read book Dynamic Response of Pre-Stressed Spatially Curved Thin-Walled Beams of Open Profile written by Yury A. Rossikhin and published by Springer Science & Business Media. This book was released on 2011-07-21 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: This short book analyses the dynamic stability with respect to small perturbations, as well as the local damage of geometrically nonlinear elastic, spatially curved, open section beams with axial precompression. Transient waves, which are the surfaces of strong discontinuity and wherein the stress and strain fields experience discontinuities, are used as small perturbations; in so doing the discontinuities are considered to be of small magnitude. Such waves are initiated during low-velocity impacts upon thin-walled beams. The theory of discontinuities and the method of ray expansions which allow one to find the desired fields behind the fronts of the transient waves in terms of discontinuities in time-derivatives of the values to be found, are used as the methods of solution for short-time dynamic processes. The example of using the ray expansions for analyzing the impact response of spatially curved thin-walled beams of open profile is demonstrated by solving the problem about the normal impact of an elastic hemispherical-nosed rod upon an elastic arch representing itself a channel-beam curved along an arc of the circumference. The influence of the initial stresses on the dynamic fields has been investigated.
Book Synopsis Shell-like Structures by : Holm Altenbach
Download or read book Shell-like Structures written by Holm Altenbach and published by Springer Science & Business Media. This book was released on 2011-07-03 with total page 753 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this volume scientists and researchers from industry discuss the new trends in simulation and computing shell-like structures. The focus is put on the following problems: new theories (based on two-dimensional field equations but describing non-classical effects), new constitutive equations (for materials like sandwiches, foams, etc. and which can be combined with the two-dimensional shell equations), complex structures (folded, branching and/or self intersecting shell structures, etc.) and shell-like structures on different scales (for example: nano-tubes) or very thin structures (similar to membranes, but having a compression stiffness). In addition, phase transitions in shells and refined shell thermodynamics are discussed. The chapters of this book are the most exciting contributions presented at the EUROMECH 527 Colloquium “Shell-like structures: Non-classical Theories and Applications” held in Wittenberg, Germany.
Book Synopsis Proceedings of XXIV AIMETA Conference 2019 by : Antonio Carcaterra
Download or read book Proceedings of XXIV AIMETA Conference 2019 written by Antonio Carcaterra and published by Springer Nature. This book was released on 2020-03-31 with total page 2200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the peer-reviewed papers presented at the XXIV Conference of the Italian Association of Theoretical and Applied Mechanics, held in Rome, Italy, on September 15-19, 2019 (AIMETA 2019). The conference topics encompass all aspects of general, fluid, solid and structural mechanics, as well as mechanics for machines and mechanical systems, including theoretical, computational and experimental techniques and technological applications. As such the book represents an invaluable, up-to-the-minute tool, providing an essential overview of the most recent advances in the field.
Book Synopsis Dynamic Behavior of Thin-walled Beams by : Wassim Jrad
Download or read book Dynamic Behavior of Thin-walled Beams written by Wassim Jrad and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin-walled beams with open section constitute main elements in engineering applications fields as in civil engineering, automotive and aerospace construction. Due to slenderness and cross section shapes, these elements are very sensitive to torsion and instabilities in both statics and dynamics. In dynamics, the torsional and flexural-torsional modes of vibration are often lower frequencies compared to the classical plane pure bending modes. Thus, planar failures of such structures are known to be an exception rather than a rule. In torsion, warping is important and governs the behavior. In this thesis work, we are interested with the dynamic behavior of thin-walled beams with arbitrary open cross sections. Based on the Vlasov's model accounting for warping, the 3D motion equations are derived from the Hamilton's principle. Original analytical solutions for different boundary conditions are derived for higher free vibration modes. In these solutions, the effects of the inertial rotation terms in bending and torsion are taken into consideration. For more general cases, a 3D beam finite element model is described and implemented. Compared to conventional 3D beams, warping is considered as an additional Degree Of Freedom (DOF). The mass and stiffness matrices are obtained by numerical integration (Gauss method). In the model, free and forced vibration analyses are possible. The model is validated by comparison with benchmark solutions available in the literature and other numerical results obtained from simulation on commercial codes. In order to validate the present model, laboratory test campaign is undertaken at the LEM3 laboratory in Metz. Tests are carried out on thin-walled beams with different boundary conditions. Free and forced vibration tests are performed using impact hammer and shaker machine. In the presence of arbitrary sections, flexural-torsional vibration modes are observed. The analytical, the numerical and the experimental solutions are compared and validated. Moreover, the numerical and experimental dynamic response spectra are compared. A good agreement between the various solutions is remarked. The model is extended to 3D beams in presence of lateral braces. 3D elastic and viscous springs are added in the finite element model. The effect of the springs is studied in order to improve the behavior of thin-walled beams against undesirable lateral bending and torsion modes.
Download or read book The Engineering Index Annual written by and published by . This book was released on 1992 with total page 2264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.
Book Synopsis On the Dynamic Response of a Prestressed Beam by : Arnold D. Kerr
Download or read book On the Dynamic Response of a Prestressed Beam written by Arnold D. Kerr and published by . This book was released on 1973 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the first part of the report the dynamic bending response of a prestressed beam, in which the prestressing rod is continuously supported, is studied analytically. It is found that an axial prestressing force which passes through the centroids of the beam cross sections, has no effect upon the bending response of the beam. In the second part of the report a test set up of a prestressed cantilever beam is described and the determined natural frequencies are presented. The test results corroborate the analytical findings that the prestressing force has no effect upon the natural frequencies. (Author).
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1987 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transactions of the American Society of Civil Engineers by : American Society of Civil Engineers
Download or read book Transactions of the American Society of Civil Engineers written by American Society of Civil Engineers and published by . This book was released on 2001 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 29-30 contain papers of the International Engineering Congress, Chicago, 1893; v. 54, pts. A-F, papers of the International Engineering Congress, St. Louis, 1904.
Book Synopsis Calculation of Curved Thin-walled Beams with Open Profile by : Dabrowski, R
Download or read book Calculation of Curved Thin-walled Beams with Open Profile written by Dabrowski, R and published by . This book was released on 1972 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1996 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Calculation of Curved Thin-walled Beams with Open Profile by : R. Dabrowski
Download or read book Calculation of Curved Thin-walled Beams with Open Profile written by R. Dabrowski and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Calculation of Curved Thin-walled Beams with Open Profile by : National Research Council of Canada. Division of Building Research
Download or read book Calculation of Curved Thin-walled Beams with Open Profile written by National Research Council of Canada. Division of Building Research and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Method of Analysis for Nonlinear Dynamic Response of Prestressed Concrete Beams by : Ramachandran Lakshmikanthan
Download or read book A Method of Analysis for Nonlinear Dynamic Response of Prestressed Concrete Beams written by Ramachandran Lakshmikanthan and published by . This book was released on 1976 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Enzyme-linked Immunosorbent Assay (ELISA) by : Samira Hosseini
Download or read book Enzyme-linked Immunosorbent Assay (ELISA) written by Samira Hosseini and published by Springer. This book was released on 2017-12-30 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers comprehensive information on all aspects of ELISA, starting with the fundamentals of the immune system. It also reviews the history of analytical assays prior to the advent of ELISA (enzyme-linked immunosorbent assay) and addresses the materials of choice for the fabrication of the platforms, possible biomolecular interactions, different protocols, and evaluation parameters. The book guides readers through the respective steps of the analytical assay, while also familiarizing them with the possible sources of error in the assay. It offers detailed insights into the immobilization techniques used for protein attachment, as well as methods for evaluating the assay and calculating the key parameters, such as sensitivity, specificity, accuracy and limit of detection. In addition, the book explores the advantages and shortcomings of the conventional ELISA, as well as various approaches to improving its performance. In this regard, merging and integrating other technologies with widely known ELISAs have opened new avenues for the advancement of this immunoassay. Accordingly, the book provides cutting-edge information on integrated platforms such as ELISpot, plasmonic ELISAs, sphere-/bead-based ELISAs, paper-/fiber-based ELISAs and ELISA in micro-devices.
Book Synopsis Graduate Bulletin by : North Dakota Agricultural College. Graduate School
Download or read book Graduate Bulletin written by North Dakota Agricultural College. Graduate School and published by . This book was released on 1974 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book News in Engineering written by and published by . This book was released on 1969 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Shell-like Structures by : Holm Altenbach
Download or read book Shell-like Structures written by Holm Altenbach and published by Springer. This book was released on 2016-08-09 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents mathematical and mechanical aspects of the theory of plates and shells, applications in civil, aero-space and mechanical engineering, as well in other areas. The focus relates to the following problems:• comprehensive review of the most popular theories of plates and shells,• relations between three-dimensional theories and two-dimensional ones,• presentation of recently developed new refined plates and shells theories (for example, the micropolar theory or gradient-type theories),• modeling of coupled effects in shells and plates related to electromagnetic and temperature fields, phase transitions, diffusion, etc.,• applications in modeling of non-classical objects like, for example, nanostructures,• presentation of actual numerical tools based on the finite element approach.
