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Author: JamesM. Whitney Publisher: Routledge ISBN: 1351413279 Category : Technology & Engineering Languages : en Pages : 356
Book Description
A major basic text on the theory and structural applications of laminated anisotropic plates. Detailed coverage of problems of bending under transverse load, stability, and free-vibrations, as well as laminated beams, expansional strain effects, curved plates, and free-edge effects.
Author: JamesM. Whitney Publisher: Routledge ISBN: 1351413279 Category : Technology & Engineering Languages : en Pages : 356
Book Description
A major basic text on the theory and structural applications of laminated anisotropic plates. Detailed coverage of problems of bending under transverse load, stability, and free-vibrations, as well as laminated beams, expansional strain effects, curved plates, and free-edge effects.
Author: A. Bogdanovich Publisher: Springer Science & Business Media ISBN: 9780412611506 Category : Technology & Engineering Languages : en Pages : 594
Book Description
Mechanics of Textile and Laminated Composites is in three parts. The first part (Chapters 1 and 2) covers the fundamental issues of 3-D theory of elasticity and presents the theory of elasticity of an anisotropic body with comprehensive analysis of its specific cases. The second part (Chapters 3-5) presents the theoretical and experimental characterization of the elastic properties of unidirectional, textile and layered composite materials. The final part (Chapters 6 and 7) addresses the problems of 3-D stress analysis in laminated and textile composite structures. Major emphasis is placed on textile composites, perhaps the most complex and at the same time most promising group of composite materials. One of the most important features of this book is that it provides accurate and efficient 3-D analysis of laminated and textile reinforced structures, using novel methods. It has become more and more evident in recent years that, in many practical design situations, such full-scale 3-D analyses are required. Researchers, designers and engineers working with composite materials and structures will find this book an invaluable addition to their libraries.
Author: Suong Van Hoa Publisher: Springer Science & Business Media ISBN: 9780792381365 Category : Technology & Engineering Languages : en Pages : 312
Book Description
This book has one single purpose: to present the development of the partial hybrid finite element method for the stress analysis of laminated composite structures. The reason for this presentation is because the authors believe that partial hybrid finite element method is more efficient that the displacement based finite element method for the stress analysis oflaminated composites. In fact, the examples in chapter 5 of this book show that the partial hybrid finite element method is about 5 times more efficient than the displacement based finite element method. Since there is a great need for accurate and efficient calculation of interlaminar stresses for the design using composites, the partial hybrid finite method does provide one possible solution. Hybrid finite method has been in existence since 1964 and a significant amount of work has been done on the topic. However, the authors are not aware of any systematic piece of literature that gives a detailed presentation of the method. Chapters of the displacement finite element method and the evolution 1 and 2 present a sununary of the hybrid finite element method. Hopefully, these two chapters can provide the readers with an appreciation for the difference between the displacement finite element method and the hybrid finite element. It also should prepare the readers for the introduction of partial hybrid finite element method presented in chapter 3.
Author: Goldy Kumar Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Layered composite structures are not only mechanically superior to conventional structures, but they also provide material customizability and ability to manufacture assembly-free unitized structures. However, structural analysis of composite structures still remains challenging. Currently, the analysis is done using finite element method on a simplified mixed-dimensional analysis model for composite structures. The simplification is done using behavior models, such as 2D plate and 1D beam models, which is necessary as meshing hundreds of material layers individually is extremely expensive. There are two major challenges to this approach- (i) lack of a systematic method for identification and documentation of the different behavior models in a composite structure and the exact regions in the structure where the behavior models are applicable and (ii) FEA using mixed dimensional analysis models require dimension reduction, different types of finite elements, and compatibility between different elements. These FEA pre-processing steps are time-consuming, require manual intervention and are often error-prone. I propose a new framework for an automatic and efficient analysis of laminated composite structures. The framework is based on two novel contributions- i) a formal Function-Behavior-Structure (FBS) framework for structural engineering and ii) the virtual material method. The popular, but informal, FBS framework provides a general language and tools for design activities. I provide a formalism to the FBS framework in the context of engineering structures and use it to represent and record the functional components and the corresponding behaviors in a composite structure. This allows for the systematic identification and organization of behaviors and their regions in a structure. The formalism is based on physical solid modeling, an extension of the traditional solid modeling to include physics and behavior. In the virtual material method, I replace an original layup of materials in a composite structure, that can have hundreds of plies, by an equivalent but much simpler layup, called virtual material. The two layups are equivalent for a given behavior model. In essence, instead of using behavior models to obtain a simplified mixed dimensional analysis model, I propose to use them to obtain a new type of analysis model which is three-dimensional but has considerably simple material layups as compared to the original composite structure. Virtual material method, therefore, makes 3D FEA of composite structures practical and, as a result, eliminates the heuristic and expensive pre-processing steps. To demonstrate the effectiveness of the proposed framework, I implemented the FBS framework and the virtual material method in a 3D meshfree finite element system. The system allows a structured documentation of function and behavior information for composite structures and automatically computes virtual materials wherever applicable. The 3D meshfree nature of the system not only eliminates the pre-processing steps but also the errors encountered in 3D conforming meshing. I validated the accuracy of the virtual material method by analyzing several benchmark problems found in the literature. Finally, I also analyzed some complex composite structures, including an airplane fuselage section, to demonstrate how practical composite structures can be analyzed using my system.
Author: George Staab Publisher: Butterworth-Heinemann ISBN: 0128026197 Category : Technology & Engineering Languages : en Pages : 466
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: J. N. Reddy Publisher: CRC Press ISBN: 9780203502808 Category : Science Languages : en Pages : 864
Book Description
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.
Author: Jianqiao Ye Publisher: Springer Science & Business Media ISBN: 1447100956 Category : Technology & Engineering Languages : en Pages : 285
Book Description
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.
Author: JamesM. Whitney
Author: JamesM. Whitney
Author: James Martin Whitney
Author: A. Bogdanovich
Author: James Whitney
Author: Suong Van Hoa
Author: Goldy Kumar
Author: George Staab
Author: J. N. Reddy
Author: Jianqiao Ye
Author: Brian Esp