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Author: T. Iwiński
Publisher: Elsevier
ISBN: 1483186016
Category : Technology & Engineering
Languages : en
Pages : 161
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Book Description
Theory of Beams: The Application of the Laplace Transformation Method to Engineering Problems, Second Enlarged Edition emphasizes the method used than the broad coverage of all the significant cases that may be met in engineering practice. The content of this edition is mostly the topics presented in the first edition, but are roughly doubled. This edition is divided into four chapters, wherein most of the modifications made are included in the fourth chapter. The first chapter provides an introduction of the study, followed by discussions on theory of beams. Then, specific topics on the transform of the load function; beams with transverse and axial loading; beams and free beam on elastic foundations and non-homogeneous elastic foundations; and simple beam with terminal forces and couples resting on an elastic foundation are examined. This book ends with a table presenting transforms and functions. This text will be of interest to mathematicians and engineers, as well as mathematics and engineering students.
Author: T. Iwiński
Publisher: Elsevier
ISBN: 1483186016
Category : Technology & Engineering
Languages : en
Pages : 161
Get Book Here
Book Description
Theory of Beams: The Application of the Laplace Transformation Method to Engineering Problems, Second Enlarged Edition emphasizes the method used than the broad coverage of all the significant cases that may be met in engineering practice. The content of this edition is mostly the topics presented in the first edition, but are roughly doubled. This edition is divided into four chapters, wherein most of the modifications made are included in the fourth chapter. The first chapter provides an introduction of the study, followed by discussions on theory of beams. Then, specific topics on the transform of the load function; beams with transverse and axial loading; beams and free beam on elastic foundations and non-homogeneous elastic foundations; and simple beam with terminal forces and couples resting on an elastic foundation are examined. This book ends with a table presenting transforms and functions. This text will be of interest to mathematicians and engineers, as well as mathematics and engineering students.
Author: O. A. Bauchau
Publisher: Springer Science & Business Media
ISBN: 9048125162
Category : Technology & Engineering
Languages : en
Pages : 943
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Book Description
The authors and their colleagues developed this text over many years, teaching undergraduate and graduate courses in structural analysis courses at the Daniel Guggenheim School of Aerospace Engineering of the Georgia Institute of Technology. The emphasis is on clarity and unity in the presentation of basic structural analysis concepts and methods. The equations of linear elasticity and basic constitutive behaviour of isotropic and composite materials are reviewed. The text focuses on the analysis of practical structural components including bars, beams and plates. Particular attention is devoted to the analysis of thin-walled beams under bending shearing and torsion. Advanced topics such as warping, non-uniform torsion, shear deformations, thermal effect and plastic deformations are addressed. A unified treatment of work and energy principles is provided that naturally leads to an examination of approximate analysis methods including an introduction to matrix and finite element methods. This teaching tool based on practical situations and thorough methodology should prove valuable to both lecturers and students of structural analysis in engineering worldwide. This is a textbook for teaching structural analysis of aerospace structures. It can be used for 3rd and 4th year students in aerospace engineering, as well as for 1st and 2nd year graduate students in aerospace and mechanical engineering.
Author: Dewey H. Hodges
Publisher: Progress in Astronautics and A
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 344
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Book Description
From an authoritative expert whose work on modern helicopter rotor blade analysis has spanned over three decades, comes the first consistent and rigorous presentation of beam theory. Beginning with an overview of the theory developed over the last 60 years, Dr. Hodges addresses the kinematics of beam deformation, provides a simple way to characterize strain in an initially curved and twisted beam, and offers cross-sectional analysis for beams with arbitrary cross sections and composed of arbitrary materials. He goes on to present a way to accurately recover all components of cross-sectional strain and stress before providing a natural one-dimensional (1-D) theory of beams. Sample results for both cross-sectional and 1-D analysis are presented as is a parallel treatment for thin-walled beams.
Author: Erasmo Carrera
Publisher: John Wiley & Sons
ISBN: 1119951046
Category : Science
Languages : en
Pages : 171
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Book Description
Beam theories are exploited worldwide to analyze civil, mechanical, automotive, and aerospace structures. Many beam approaches have been proposed during the last centuries by eminent scientists such as Euler, Bernoulli, Navier, Timoshenko, Vlasov, etc. Most of these models are problem dependent: they provide reliable results for a given problem, for instance a given section and cannot be applied to a different one. Beam Structures: Classical and Advanced Theories proposes a new original unified approach to beam theory that includes practically all classical and advanced models for beams and which has become established and recognised globally as the most important contribution to the field in the last quarter of a century. The Carrera Unified Formulation (CUF) has hierarchical properties, that is, the error can be reduced by increasing the number of the unknown variables. This formulation is extremely suitable for computer implementations and can deal with most typical engineering challenges. It overcomes the problem of classical formulae that require different formulas for tension, bending, shear and torsion; it can be applied to any beam geometries and loading conditions, reaching a high level of accuracy with low computational cost, and can tackle problems that in most cases are solved by employing plate/shell and 3D formulations. Key features: compares classical and modern approaches to beam theory, including classical well-known results related to Euler-Bernoulli and Timoshenko beam theories pays particular attention to typical applications related to bridge structures, aircraft wings, helicopters and propeller blades provides a number of numerical examples including typical Aerospace and Civil Engineering problems proposes many benchmark assessments to help the reader implement the CUF if they wish to do so accompanied by a companion website hosting dedicated software MUL2 that is used to obtain the numerical solutions in the book, allowing the reader to reproduce the examples given in the book as well as to solve other problems of their own www.mul2.com Researchers of continuum mechanics of solids and structures and structural analysts in industry will find this book extremely insightful. It will also be of great interest to graduate and postgraduate students of mechanical, civil and aerospace engineering.
Author: Martin Reiser
Publisher: John Wiley & Sons
ISBN: 3527617639
Category : Science
Languages : en
Pages : 634
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Book Description
Although particle accelerators are the book's main thrust, it offers a broad synoptic description of beams which applies to a wide range of other devices such as low-energy focusing and transport systems and high-power microwave sources. Develops material from first principles, basic equations and theorems in a systematic way. Assumptions and approximations are clearly indicated. Discusses underlying physics and validity of theoretical relationships, design formulas and scaling laws. Features a significant amount of recent work including image effects and the Boltzmann line charge density profiles in bunched beams.
Author: C.M. Wang
Publisher: Elsevier
ISBN: 0080541151
Category : Science
Languages : en
Pages : 311
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Book Description
Most books on the theory and analysis of beams and plates deal with the classical (Euler-Bernoulli/Kirchoff) theories but few include shear deformation theories in detail. The classical beam/plate theory is not adequate in providing accurate bending, buckling, and vibration results when the thickness-to-length ratio of the beam/plate is relatively large. This is because the effect of transverse shear strains, neglected in the classical theory, becomes significant in deep beams and thick plates. This book illustrates how shear deformation theories provide accurate solutions compared to the classical theory. Equations governing shear deformation theories are typically more complicated than those of the classical theory. Hence it is desirable to have exact relationships between solutions of the classical theory and shear deformation theories so that whenever classical theory solutions are available, the corresponding solutions of shear deformation theories can be readily obtained. Such relationships not only furnish benchmark solutions of shear deformation theories but also provide insight into the significance of shear deformation on the response. The relationships for beams and plates have been developed by many authors over the last several years. The goal of this monograph is to bring together these relationships for beams and plates in a single volume. The book is divided into two parts. Following the introduction, Part 1 consists of Chapters 2 to 5 dealing with beams, and Part 2 consists of Chapters 6 to 13 covering plates. Problems are included at the end of each chapter to use, extend, and develop new relationships.
Author: Jingkai Chen
Publisher: Springer Nature
ISBN: 3030697886
Category : Technology & Engineering
Languages : en
Pages : 59
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Book Description
This book presents a comparative study on the static responses of the Euler-Bernoulli beam governed by nonlocal theories, including the Eringen’s stress-gradient beam theory, the Mindlin’s strain-gradient beam theory, the higher-order beam theory and the peridynamic beam theory. Benchmark examples are solved analytically and numerically using these nonlocal beam equations, including the simply-supported beam, the clamped-clamped beam and the cantilever beam. Results show that beam deformations governed by different nonlocal theories at different boundary conditions show complex behaviors. Specifically, the Eringen’s stress-gradient beam equation and the peridynamic beam equation yield a much softer beam deformation for simply-supported beam and clamped-clamped beam, while the beam governed by the Mindlin’s strain-gradient beam equation is much stiffer. The cantilever beam exhibits a completely different behavior. The higher-order beam equation can be stiffer or softer depending on the values of the two nonlocal parameters. Moreover, the deformation fluctuation of the truncated order peridynamic beam equation is observed and explained from the singularity aspect of the solution expression. This research casts light on the fundamental explanation of nonlocal beam theories in nano-electromechanical systems.
Author: Aamer Haque
Publisher:
ISBN: 9781090270641
Category :
Languages : en
Pages : 94
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Book Description
Problems arise with Euler-Bernoulli beam theory when shear deformations are present. This frequently occurs in the case of deep beams. Timoshenko beam theory includes shear deformations as part of its formulation.This short text provides a clear explanation of Timoshenko beam theory. It contains a derivation based on elementary statics and mechanics. Other topics include: solution using Green's functions, virtual work and energy principles, and finite elements.Structural engineers will find this book helpful in understanding the important principles and use of Timoshenko beam thoery.
Author: Walter D. Pilkey
Publisher: John Wiley & Sons
ISBN: 0471423211
Category : Technology & Engineering
Languages : en
Pages : 479
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Book Description
State-of-the-art coverage of modern computational methods for the analysis and design of beams Analysis and Design of Elastic Beams presents computer models and applications related to thin-walled beams such as those used in mechanical and aerospace designs, where thin, lightweight structures with high strength are needed. This book will enable readers to compute the cross-sectional properties of individual beams with arbitrary cross-sectional shapes, to apply a general-purpose computer analysis of a complete structure to determine the forces and moments in the individual members, and to use a unified approach for calculating the normal and shear stresses, as well as deflections, for those members' cross sections. In addition, this book augments a solid foundation in the basic structural design theory of beams by: * Providing coverage of thin-wall structure analysis and optimization techniques * Applying computer numerical methods to classical design methods * Developing computational solutions for cross-sectional properties and stresses using finite element analyses Including access to an associated Web site with software for the analysis and design of any cross-sectional shape, Analysis and Design of Elastic Beams: Computational Methods is an essential reference for mechanical, aerospace, and civil engineers and designers working in the automotive, ship, and aerospace industries in product and process design, machine design, structural design, and design optimization, as well as students and researchers in these areas.
Author: Liviu Librescu
Publisher: Springer Science & Business Media
ISBN: 1402042035
Category : Technology & Engineering
Languages : en
Pages : 627
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Book Description
Annotation This is the first monograph devoted to the foundation of the theory of composite anisotropic thin-walled beams and to its applications in various problems involving the aeronautical/aerospace, helicopter, naval and mechanical structures. Throughout the theoretical part, an effort was made to provide the treatment of the subject by using the equations of the 3-D elasticity theory. Non-classical effects such as transverse shear, warping constraint, anisotropy of constituent materials yielding the coupling of twist-bending (lateral), bending (transversal)-extension have been included and their implications have been thoroughly analyzed. Thermal effects have been included and in order to be able to circumvent their deleterious effects, functionally graded materials have been considered in their construction. Implications of the application of the tailoring technique and of the active feedback control on free vibration, dynamic response, instability and aeroelasticity of such structures have been amply investigated. Special care was exercised throughout this work to address and validate the adopted solution methodologies and the obtained results against those available in the literature and obtained via numerical or experimental means.
