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Structural Dynamics Of Smart Laminated Composite Cylindrical Shells
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Book Synopsis Structural Dynamics of Smart Laminated Composite Cylindrical Shells by : Hossein Kheirollahi Nataj Bisheh
Download or read book Structural Dynamics of Smart Laminated Composite Cylindrical Shells written by Hossein Kheirollahi Nataj Bisheh and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Smart laminated composite cylindrical shells are widely used in many engineering applications such as aerospace, mechanical, civil, and marine structures. Dynamics (wave propagation and vibration) analysis of smart laminated composite shell structures plays an important role in design and fabrication of such structures. Understanding the dynamic characteristics of composite structures can be used for detecting possible defects in a structure and monitoring its structural integrity. Proper dynamics analysis of composite cylindrical shells has significant importance in accurate determination of wave propagation and vibration characteristics. In this thesis, a set of mathematical models is developed to model wave propagation and free vibration in smart laminated composite cylindrical shells reinforced with fibers with different sizes and arrangements based on different shell theories. The resulting effective material properties for composite structures reinforced with carbon nanotubes are estimated using the Mori-Tanaka micromechanics model. The hygrothermal environmental conditions are also considered in the proposed models. Wave dispersion and free vibration analyses are performed by solving an eigenvalue problem and finding the wave phase velocities and natural frequencies for different wave and vibration modes. Through numerical simulations, the effects of various parameters such as hygrothermal environmental conditions, axial and circumferential wavenumbers, arrangement and distribution of reinforcing fibers and carbon nanotubes, stacking sequence of the laminate, shell geometry parameters, piezoelectricity, and mechanical boundary conditions on the dynamic characteristics of different composites are examined. It is concluded that the shear effects on wave dynamics of smart laminated composite cylindrical shells are much more noticeable than its effects on wave dynamics of smart isotropic cylindrical shells. Furthermore, the effects of reinforcing fibers and carbon nanotubes and their volume fraction and geometrical distribution within the structure on wave propagation characteristics are significant and must be carefully considered in the analyses of such structures. The hygrothermal environmental conditions have a moderate impact on the wave propagation and vibration characteristics. Shell geometry and boundary conditions have noticeable effects on dynamic characteristics of smart composite cylindrical shells. The theoretical and mathematical framework developed in this thesis can be used by designers and manufacturers for the analyses of structural integrity and health monitoring of smart laminated composite cylindrical shell structures. It can also be used for energy harvesting through the piezoelectric materials embedded in such structures under different environmental conditions.
Book Synopsis Mechanics of Laminated Composite Plates and Shells by : J. N. Reddy
Download or read book Mechanics of Laminated Composite Plates and Shells written by J. N. Reddy and published by CRC Press. This book was released on 2003-11-24 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this popular text provides complete, detailed coverage of the various theories, analytical solutions, and finite element models of laminated composite plates and shells. The book reflects advances in materials modeling in general and composite materials and structures in particular. It includes a chapter dedicated to the theory and analysis of laminated shells, discussions on smart structures and functionally graded materials, exercises and examples, and chapters that were reorganized from the first edition to improve the clarity of the presentation.
Book Synopsis Design Aids for Stiffened Composite Shells with Cutouts by : Sarmila Sahoo
Download or read book Design Aids for Stiffened Composite Shells with Cutouts written by Sarmila Sahoo and published by Springer. This book was released on 2016-09-16 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the free vibrations of graphite-epoxy laminated composite stiffened shells with cutout both in terms of the natural frequencies and mode shapes. The dynamic analysis of shell structures, which may have complex geometry and arbitrary loading and boundary conditions, is solved efficiently by the finite element method, even including cutouts in shells. The results may be readily used by practicing engineers dealing with stiffened composite shells with cutouts. Several shell forms viz. cylindrical shell, hypar shell, conoidal shell, spherical shell, saddle shell, hyperbolic paraboloidal shell and elliptic paraboloidal shell are considered in the book. The dynamic characteristics of stiffened composite shells with cutout are described in terms of the natural frequency and mode shapes. The size of the cutouts and their positions with respect to the shell centre are varied for different edge constraints of cross-ply and angle-ply laminated composite shells. The effects of these parametric variations on the fundamental frequencies and mode shapes are considered in detail. The information regarding the behavior of stiffened shells with cutouts for a wide spectrum of eccentricity and boundary conditions for cross ply and angle ply shells may be used as design aids for structural engineers. The book is a significant contribution to the existing literature from the point of view of both industrial importance and academic interest.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722135386 Total Pages :42 pages Book Rating :4.1/5 (353 download)
Book Synopsis Coupled Mixed-Field Laminate Theory and Finite Element for Smart Piezoelectric Composite Shell Structures by : National Aeronautics and Space Administration (NASA)
Download or read book Coupled Mixed-Field Laminate Theory and Finite Element for Smart Piezoelectric Composite Shell Structures written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanics for the analysis of laminated composite shells with piezoelectric actuators and sensors are presented. A new mixed-field laminate theory for piezoelectric shells is formulated in curvilinear coordinates which combines single-layer assumptions for the displacements and a layerwise representation for the electric potential. The resultant coupled governing equations for curvilinear piezoelectric laminates are described. Structural mechanics are subsequently developed and an 8-node finite-element is formulated for the static and dynamic analysis of adaptive composite structures of general laminations containing piezoelectric layers. Evaluations of the method and comparisons with reported results are presented for laminated piezoelectric-composite plates, a closed cylindrical shell with a continuous piezoceramic layer and a laminated composite semi-circular cantilever shell with discrete cylindrical piezoelectric actuators and/or sensors. Saravanos, Dimitris A. Glenn Research Center NCC3-391; RTOP 505-63-5B...
Book Synopsis Stability and Vibrations of Thin-Walled Composite Structures by : Haim Abramovich
Download or read book Stability and Vibrations of Thin-Walled Composite Structures written by Haim Abramovich and published by Woodhead Publishing. This book was released on 2017-05-29 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stability and Vibrations of Thin-Walled Composite Structures presents engineering and academic knowledge on the stability (buckling and post buckling) and vibrations of thin walled composite structures like columns, plates, and stringer stiffened plates and shells, which form the basic structures of the aeronautical and space sectors. Currently, this knowledge is dispersed in several books and manuscripts, covering all aspects of composite materials. The book enables both engineers and academics to locate valuable, up-to-date knowledge on buckling and vibrations, be it analytical or experimental, and use it for calculations or comparisons. The book is also useful as a textbook for advanced-level graduate courses. Presents a unified, systematic, detailed and comprehensive overview of the topic Contains contributions from leading experts in the field Includes a dedicated section on testing and experimental results
Book Synopsis Laminated Composite Plates and Shells by : Jianqiao Ye
Download or read book Laminated Composite Plates and Shells written by Jianqiao Ye and published by Springer Science & Business Media. This book was released on 2011-06-27 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laminated Composite Plates and Shells presents a systematic and comprehensive coverage of the three-dimensional modelling of these structures. It uses the state space approach to provide novel tools for accurate three-dimensional analyses of thin and thick structural components composed of laminated composite materials. In contrast to the traditional treatment of laminated materials, the state space method guarantees a continuous interfacial stress field across material boundaries. Other unique features of the analysis include the non-dependency of a problem's degrees of freedom on the number of material layers of a laminate. Apart from the introductions to composite materials, three-dimensional elasticity and the concept of state space equations presented in the first three chapters, the book reviews available analytical and numerical three-dimensional state space solutions for bending, vibration and buckling of laminated composite plates and shells of various shapes. The applications of the state space method also include the analyses of piezoelectric laminates and interfacial stresses near free edges. The book presents numerous tables and graphics that show accurate three-dimensional solutions of laminated structural components. Many of the numerical results presented in the book are important in their own right and also as test problems for validating new numerical methods. Laminated Composite Plates and Shells will be of benefit to all materials and structural engineers looking to understand the detailed behaviour of these important materials. It will also interest academic scientists researching that behaviour and engineers from more specialised fields such as aerospace which are becoming increasingly dependent on composites.
Book Synopsis Theory of Laminated Composite Doubly-Curved Shell Structures by : Francesco Tornabene
Download or read book Theory of Laminated Composite Doubly-Curved Shell Structures written by Francesco Tornabene and published by Società Editrice Esculapio. This book was released on 2017-01-09 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manuscript comes from the experience gained over thirteen years of study and research on shell structures. The title, Theory of Laminated Composite Doubly-Curved Shell Structures, illustrates the theme followed in the present volume. The present study aims to analyze the static and dynamic behavior of moderately thick shells made of composite materials. A particular attention is paid, other than fibrous and laminated composites, also to “Functionally graded materials” (FGMs). They are non-homogeneous materials, characterized by a continuous varia on of the mechanical properties through a particular direction. In particular, the present manuscript was written as an attempt to show, in an easy way, the theoretical aspects of doubly-curved composite shell structures. Furthermore, it focuses only on the theoretical aspects related to laminated composite doubly-curved shell structures and represents a shortened version of the book entitled: Mechanics of Laminated Composite Doubly-Curved Shell Structures by the same authors, wherein also the numerical part has been presented. The present volume is aimed at Master degree and PhD students in structural and applied mechanics, as well as experts in these fields. The present volume is divided into six chapters, in which static and dynamic analyses of several structural elements are provided in detail. Furthermore, the results of the adopted numerical technique are presented for several problems such as different loading and boundary conditions.
Book Synopsis Dynamic Behavior of Laminated Composite Cylindrical Shells Under Initial Stresses by : Omesh C. Brijlal Abhat
Download or read book Dynamic Behavior of Laminated Composite Cylindrical Shells Under Initial Stresses written by Omesh C. Brijlal Abhat and published by . This book was released on 1971 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis IUTAM Symposium on Smart Structures and Structronic Systems by : Ulrich Gabbert
Download or read book IUTAM Symposium on Smart Structures and Structronic Systems written by Ulrich Gabbert and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the IUTAM Symposium on Smart Structures and Structronic Systems, held in Magdeburg, Germany, 26-29 September 2000
Book Synopsis Nonlinear Analysis of Thin-Walled Smart Structures by : Shun-Qi Zhang
Download or read book Nonlinear Analysis of Thin-Walled Smart Structures written by Shun-Qi Zhang and published by Springer Nature. This book was released on 2020-12-22 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on nonlinear finite element analysis of thin-walled smart structures integrated with piezoelectric materials. Two types of nonlinear phenomena are presented in the book, namely geometrical nonlinearity and material nonlinearity. Geometrical nonlinearity mainly results from large deformations and large rotations of structures. The book discusses various geometrically nonlinear theories including von Kármán type nonlinear theory, moderate rotation nonlinear theory, fully geometrically nonlinear theory with moderate rotations and large rotation nonlinear theory. The material nonlinearity mainly considered in this book is electroelastic coupled nonlinearity resulting from large driving electric field. This book will be a good reference for students and researchers in the field of structural mechanics.
Book Synopsis Thin-walled Laminated Structures by : Gennadi I. Mikhasev
Download or read book Thin-walled Laminated Structures written by Gennadi I. Mikhasev and published by Springer. This book was released on 2019-04-29 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a theoretical approach that allows the analysis of structures with magnetorheological and electrorheological layers, and shows, with the help of examples, how the mechanical behaviour of thin-walled laminated structures can be influenced. It consists of six chapters: Chapter 1 presents a brief overview of derivation approaches for theories of thin-walled structures, modelling of composites and modelling of laminated and sandwich structures. Chapter 2 describes the equivalent single layer model for thin laminated cylindrical shells, including the special cases of plates and beams. In addition to the classical mechanical properties, it also considers the electrorheological and magnetorheological properties. Chapter 3 presents the elastic buckling of laminated beams, plates, and cylindrical shells, discussing various problems, such as the influence of the boundary conditions, external loading and magnetic fields. It also suggests different approximations for asymptotic methods. Chapter 4 focuses on the free vibrations of elastic laminated beams, plates and cylindrical shells, investigating the influence of the boundary conditions and other factors. Chapter 5 presents the latest results concerning vibration of laminated structures composed of smart materials and discusses in detail the influence of electric and magnetic fields on smart structures. These results provide insights into the optimal design of these structures. Lastly, Chapter 6 features a short appendix presenting asymptotic estimates and series.
Book Synopsis Analysis and Modelling of Advanced Structures and Smart Systems by : Holm Altenbach
Download or read book Analysis and Modelling of Advanced Structures and Smart Systems written by Holm Altenbach and published by Springer. This book was released on 2017-11-27 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected papers presented at the 8th International Conference "Design, Modeling and Experiments of Advanced Structures and Systems" (DeMEASS VIII, held in Moscow, Russia in May 2017) and reflects the modern state of sciences in this field. The contributions contain topics like Piezoelectric, Ferroelectric, Ferroelastic and Magnetostrictive Materials, Shape Memory Alloys and Active Polymers, Functionally Graded Materials, Multi-Functional Smart Materials and Structures, Coupled Multi-Field Problems, Design and Modeling of Sensors and Actuators, Adaptive Structures.
Book Synopsis Mechanics of Laminated Composite Plates and Shells by : J. N. Reddy
Download or read book Mechanics of Laminated Composite Plates and Shells written by J. N. Reddy and published by CRC Press. This book was released on 2004-06-01 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of composite materials in engineering structures continues to increase dramatically, and there have been equally significant advances in modeling for general and composite materials and structures in particular. To reflect these developments, renowned author, educator, and researcher J.N. Reddy created an enhanced second edition of his standard-setting Mechanics of Laminated Composite Plates and Shells: Theory and Analysis. This edition includes: A chapter dedicated to the theory and analysis of laminated shells Discussions addressing smart structures and functionally graded materials Reorganization of chapters that improves and clarifies presentation Additional exercises and examples A timelessly valuable resource, this book approaches the subject primarily in terms of the finite element method. It provides incomparably full, self-contained coverage of the theories, analytical solutions, and linear and nonlinear finite element models of plate and shell laminated composite structures.
Book Synopsis Composite Structures by : I.H. Marshall
Download or read book Composite Structures written by I.H. Marshall and published by Springer. This book was released on 1991-09-30 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers contained herein were presented at the Sixth International Conference on Composite Structures (ICCS/6) held at Paisley College, Scotland in September 1991. The Conference was organised and sponsored by Paisley College. It was co-sponsored by Scottish Enterprise, the National Engineering Laboratory, the US Army Research, Development and Standardisation Group-UK, Strathclyde Regional Council and Renfrew District Council. It forms a natural and ongoing progression from the highly successful ICCS/1/2/3/4 and 5 held at Paisley in 1981, 1983, 1985, 1987 and 1989 respectively. As we enter the final decade of this century many organisations throughout the world are adopting a prophetic role by attempting to forecast future scientific advances and their associated impact on mankind. Although some would argue that to do so is folly, without such futuristic visionaries the world would be that much poorer. IntelJigent speculation based on research trends and historical advances, rather than fanciful theories, breathes a healthy air of enthusiasm into the scientific community. Surely this is the very oxygen necessary to ignite the fir~s of innovation and invention amongst pioneers of research.
Book Synopsis Vibration of Laminated Shells and Plates by : Mohamad Subhi Qatu
Download or read book Vibration of Laminated Shells and Plates written by Mohamad Subhi Qatu and published by Elsevier. This book was released on 2004-02-16 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vibrations drive many engineering designs in today’s engineering environment. There has been an enormous amount of research into this area of research over the last decade. This book documents some of the latest research in the field of vibration of composite shells and plates filling a much-needed gap in the market. Laminated composite shells have many engineering applications including aerospace, mechanical, marine and automotive engineering. This book makes an ideal reference for researchers and practicing engineers alike. The first book of its kind Documents 10 years of research in the field of composite shells Many Engineering applications
Book Synopsis Advanced Topics Of Thin-walled Structures by : Haim Abramovich
Download or read book Advanced Topics Of Thin-walled Structures written by Haim Abramovich and published by World Scientific. This book was released on 2021-06-10 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique compendium presents some new topics related to thin-walled structures, like beams, plates and shells used in aerospace structures. It highlights their dynamic behaviors and also the correlation between compressive loading and natural frequency to enable a correlation between the two, yielding a valuable non-destructive tool, to predict buckling for thin-walled structures.This useful reference text combines valuable data on metal materials and composite materials together with new adaptive and smart materials like piezoelectricity, shape memory alloys and optic fibers, which form the present state of the art in thin-walled structure domain.
Book Synopsis The Mechanics of Smart Nanocomposite Sandwich Structures by : M.S.H. Al-Furjan
Download or read book The Mechanics of Smart Nanocomposite Sandwich Structures written by M.S.H. Al-Furjan and published by Cambridge Scholars Publishing. This book was released on 2023-01-24 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the mechanics of smart nanocomposite sandwich plates, discussing various relevant theories of mechanical analysis such as buckling, vibration and dynamic instability. It presents different models for obtaining the effective material properties of nanocomposite structures such as Mori-Tanaka, mixture, micro-electro-mechanical and Halpin-Tsai. In addition, the basic equations for smart materials are introduced, while the governing equations for various examples are derived on the basis of the energy method and Hamilton’s principle.
