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Development Of Partial Hybrid Finite Elements For 3 D Global Local Analysis Of Laminated Composite Structures

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Hybrid Finite Element Method For Stress Analysis Of Laminated Composites

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Author : Suong Van Hoa
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-27

Hybrid Finite Element Method For Stress Analysis Of Laminated Composites written by Suong Van Hoa and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-27 with Technology & Engineering categories.

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.

Proceedings Of The Tenth International Conference On Composite Materials

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Author : Anoush Poursartip
language : en
Publisher: Woodhead Publishing
Release Date : 1995

Proceedings Of The Tenth International Conference On Composite Materials written by Anoush Poursartip and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Ceramic-matrix composites categories.

Development Of Partial Hybrid Finite Elements For 3 D Global Local Analysis Of Laminated Composite Structures

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Author : Wei Feng
language : en
Publisher:
Release Date : 1998

Development Of Partial Hybrid Finite Elements For 3 D Global Local Analysis Of Laminated Composite Structures written by Wei Feng and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Composite materials categories.

The purpose of this work is to develop global/local finite element models using partial hybrid stress finite elements for stress analysis of laminated composite structures. Based on the composite variational principle, the general formulations of partial hybrid single-layer finite element and multilayer finite element are presented. These formulations can be used to develop a series of partial hybrid finite elements. A 4-node degenerated plate element, an 8-node degenerated plate element, a 3-D, 8-node solid element, a 3-D, 20-node solid element, a 6-node transition element, a 15-node transition element, a multilayer solid element, and a multilayer transition element are presented. The elements developed in this thesis are examined by the, eigenvalue test to detect zero-energy deformation modes and the absence of rigid-body motion capability. The results show that the elements do not have any kinematic deformation modes, and they have a desired capability for rigid-body displacement. In addition, the non-zero eigenvalues of the element stiffness matrices are real and positive. In order to determine the optimal partial stress fields for the partial hybrid elements, a classification method of stress modes is presented. The method can be used to classify stress modes, select optimal stress modes, and set up an assumed stress matrix for a hybrid element. Also, the necessary and sufficient condition for avoiding spurious kinematic deformation mode is proposed and the optimal condition of an assumed stress field is presented. A computer program COMSA is developed to implement the partial hybrid finite element method. The Global/Local finite element models are established using plate element, solid element, and transition element. In the thesis, a few numerical examples are presented to verify the accuracy and efficiency of the finite element models. It has been shown that the global/local models using partial hybrid element are efficient and accurate for stress analysis of laminated composites due to the fact that they take advantage of the capacity of both 3-D elements and 2-D elements.

Computer Aided Design In Composite Material Technology V

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Author : William Robert Blain
language : en
Publisher: Computational Mechanics
Release Date : 1996

Computer Aided Design In Composite Material Technology V written by William Robert Blain and has been published by Computational Mechanics this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Computers categories.

This text presents all aspects of composite material technology, covering a wide range of topics. The book contains the proceedings of the fifth International Conference on Computer Aided Design in Composite Material Technology, held in Udine, Italy in July 1996.

Computer Methods In Composite Materials Vi

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Author : Suong V. Hoa
language : en
Publisher:
Release Date : 1998

Computer Methods In Composite Materials Vi written by Suong V. Hoa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Computers categories.

The Computer Methods in Composite Materials conferences bring together both engineers and scientists actively interested in this field. Featuring the proceedings of the sixth meeting, this text covers topics relating to simulation, modelling and experimentation of composite materials.