Structural Analysis Methods and Elastic Property Determination for Laminated Composites PDF Download
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Author: Milton O. Critchfield
Publisher:
ISBN:
Category :
Languages : en
Pages : 91
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Book Description
Recent applications of laminated composites to ship structural components have highlighted both the analytical complexities involved and the need for providing the structural designer and analyst with appropriate laminate analysis methods. To this end, three types of analytical methods, traditionalloy applied to metallic ship structural components, have been extended to the analysis of laminated composites; procedures for their implementation are discussed. These methods include: (a) strength-of-materials techniques for laminated beam and column members, (b) classical analysis methods for the bending, buckling, and vibration of laminated plating, and (c) finite-element techniques for either individual laminated components or more complex hybrid structures. Finite-element approaches are discussed for investigating both the in-plane stresses in the individual layers of a laminate and the interlaminar shear and normal stresses which frequently govern near discontinuities in laminate cross sections. The use of these three analysis techniques necessitates that laminated composite components be analyzed as nonlaminated components having equivalent stiffness during in-plane axial and shear and out-of-plane bending responses. Three kinds of equivalent elastic properties for laminates are defined, and methods are presented for calculating each of them. Since these computational procedures may be quite lengthy for laminates with more than a few layers, a computer program is referenced which automates the procedures.
Author: Milton O. Critchfield
Publisher:
ISBN:
Category :
Languages : en
Pages : 91
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Book Description
Recent applications of laminated composites to ship structural components have highlighted both the analytical complexities involved and the need for providing the structural designer and analyst with appropriate laminate analysis methods. To this end, three types of analytical methods, traditionalloy applied to metallic ship structural components, have been extended to the analysis of laminated composites; procedures for their implementation are discussed. These methods include: (a) strength-of-materials techniques for laminated beam and column members, (b) classical analysis methods for the bending, buckling, and vibration of laminated plating, and (c) finite-element techniques for either individual laminated components or more complex hybrid structures. Finite-element approaches are discussed for investigating both the in-plane stresses in the individual layers of a laminate and the interlaminar shear and normal stresses which frequently govern near discontinuities in laminate cross sections. The use of these three analysis techniques necessitates that laminated composite components be analyzed as nonlaminated components having equivalent stiffness during in-plane axial and shear and out-of-plane bending responses. Three kinds of equivalent elastic properties for laminates are defined, and methods are presented for calculating each of them. Since these computational procedures may be quite lengthy for laminates with more than a few layers, a computer program is referenced which automates the procedures.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702
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Book Description
Author: George Staab
Publisher: Butterworth-Heinemann
ISBN: 0128026197
Category : Technology & Engineering
Languages : en
Pages : 466
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Book Description
This reference text provides students and practicing engineers with the theoretical knowledge and practical skills needed to identify, model, and solve structural analysis problems involving continuous fiber laminated composites. The principles are illustrated throughout with numerous examples and case studies, as well as example problems similar in nature to those found in strength of materials texts. A solutions manual is available. Extensive coverage of test methods and experimental techniques distinguished Staab from the many theory-led books on composites, making it ideal for practicing engineers and courses with a practical emphasis. The second edition of Laminar Composites is ideal for engineers with a firm understanding of basic structural analysis discovering for the first time the intricacies of orthotropic material behavior and laminate analysis. The fundamental equations required to formulate and assess the behavior of laminated composites are presented in an easy to follow format. Revised and updated throughout, the second edition also includes three new chapters; beams, plates, shells, each covering aspects such as bending, deformation and vibration accompanied by the relevant equations of equilibrium and motion. Tutorial style ideal for self-study or use on strength of materials courses (undergraduate and graduate – online solutions manual available) A foundational reference work for a class of composite materials of growing commercial importance Coverage of test methods and experimental techniques distinguished Staab from the many theory-led books on composites, making it ideal for practicing engineers and courses with a practical emphasis
Author: James Martin Whitney
Publisher:
ISBN:
Category : Composite materials
Languages : en
Pages : 526
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Book Description
Author: Albert Skudra
Publisher: CRC Press
ISBN: 9780877628378
Category : Technology & Engineering
Languages : en
Pages : 316
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Book Description
The use of RP/composite materials in load-bearing applications requires an in-depth understanding of their structural mechanics. This book provides a very detailed, quantified presentation of this important subject.
Author: Dinghe Li
Publisher: Elsevier
ISBN: 032391442X
Category : Technology & Engineering
Languages : en
Pages : 544
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Book Description
Composite Laminated: Theories and Their Applications presents the latest methods for analyzing composite laminates and their applications. The title introduces the most important analytical methods in use today, focusing on fracture, damage, multi-physics and sensitivity analysis. Alongside these methods, it presents original research carried out over two decades on laminated composite structures and gives detailed coverage of laminate theories, analytic solutions and finite element models. Specific chapters cover An introduction to composites, Elasticity, Shear, State space theory, Layerwise theories, The extended layerwise method, Fracture and damage mechanics, Multi-physical fracture problems, Analytical methods of stiffened sandwich structures, Progressive failure analysis, and more. This volume offers a comprehensive guide to the state-of-the-art in the analysis and applications of composite laminates, which play a critical role in all types of engineering, from aerospace to subsea structures, including in medical prosthetics, circuit boards and sports equipment. Presents a guide to the analysis and application of advanced composite materials Gives detailed exposition of plate/shell theories and their implementation in finite element code architecture Considers the robustness, effectiveness and applications aspects of laminated plate/shell methods Gives hands-on experience of code architecture, providing composite analysis software which can be plugged in to commercial applications Presents experimental research alongside methods, laminate theories, analytic solutions, and finite element models
Author: J. N. Reddy
Publisher: CRC Press
ISBN: 1351423045
Category : Technology & Engineering
Languages : en
Pages : 334
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Book Description
Composite materials are increasingly used in aerospace, underwater, and automotive structures. They provide unique advantages over their metallic counterparts, but also create complex challenges to analysts and designers. Practical Analysis of Composite Laminates presents a summary of the equations governing composite laminates and provides practical methods for analyzing most common types of composite structural elements. Experimental results for several types of structures are included, and theoretical and experimental correlations are discussed. The last chapter is devoted to practical analysis using Designing Advanced Composites (DAC), a PC-based software on the subject. This comprehensive text can be used for a graduate course in mechanical engineering, and as a valuable reference for professionals in the field.
Author: J. E. Jam
Publisher: LAP Lambert Academic Publishing
ISBN: 9783847315490
Category :
Languages : en
Pages : 200
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Book Description
Composites technology has been gaining increasing acceptance for various applications. In such application, this book relates to parametric study of the dynamic characteristics of laminated composite structures. The elastic properties of composite materials depend on diverse factors like the configuration of the laminates, constituent materials used, production method adopted etc.. Hence, it is generally impossible to find these properties in standard tables or databases. The determination of material parameters of the complex materials, such as fiber reinforced composites, present serious difficulties when applying traditional test methods. To overcome these difficulties, the mentioned method, viz., Genetic Algorithm (GA) and Simulated Annealing (SA), have been used to provide additional techniques of evaluating material properties of composite structures from the measured natural frequencies.
Author: G.R. Liu
Publisher: CRC Press
ISBN: 9781420040999
Category : Technology & Engineering
Languages : en
Pages : 474
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Book Description
Ultrasonic non-destructive evaluation (NDE) plays an increasingly important role in determining properties and detecting defects in composite materials, and the analysis of wave behavior is crucial to effectively using NDE techniques. The complexity of elastic wave propagation in anisotropic media has led to a reliance on numerical methods of analysis-methods that are often quite time-consuming and whose results yield even further difficulties in extracting explicit phenomena and characteristics. Innovative and insightful, Elastic Waves in Anisotropic Laminates establishes a set of high-performance, analytical-numerical methods for elastic wave analysis of anisotropic layered structures. The treatment furnishes a comprehensive introduction, sound theoretical development, and applications to smart materials, plates, and shells. The techniques, detailed in both the time and frequency domains, include methods that combine the finite element method (FEM) with the Fourier transform approach and the strip element method (SEM). These -methods can also be used for expediently finding the Green's function for anisotropic laminates useful for inverse problems related to wave propagation, and methods for inverse analyses, including conjugate gradient methods, and genetic algorithms are also introduced. The text is complemented by many examples generated using software codes based on the techniques developed. Filled with charts and illustrations, Elastic Waves in Anisotropic Laminates is accessible even to readers from non-engineering backgrounds and offers a unique opportunity to discover methods that can lead to an understanding of the dynamic characteristics and wave motion behaviors of advanced composite materials.
Author: Fu-Kuo Chang
Publisher: DEStech Publications, Inc
ISBN: 9781932078138
Category : Technology & Engineering
Languages : en
Pages : 1136
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Book Description
Presentations by advanced materials specialists from around the world. Of special interest in this volume are the presentations on application areas such as automotive and civil engineering, nanomaterials, ceramic/metal composites, smart materials, and composite structures.
