Progressive Failure Studies of Composite Panels with and Without Cutouts

Progressive Failure Studies of Composite Panels with and Without Cutouts
Author: Navin Jaunky
Publisher:
Total Pages: 30
Release: 2001
Genre:
ISBN:

Progressive failure analyses results are presented for composite panels with and without a cutout and subjected to in-plane shear loading and compression loading well into their postbuckling regime. Ply damage modes such as matrix cracking, fiber-matrix shear, and fiber failure are modeled by degrading the material properties. Results from finite element analyses are compared with experimental data. Good agreement between experimental data and numerical results are observed for most structural configurations when initial geometric imperfections are appropriately modeled.

Progressive Failure Studies of Composite Panels with and Without Cutouts

Progressive Failure Studies of Composite Panels with and Without Cutouts
Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
Total Pages: 28
Release: 2018-09-16
Genre: Science
ISBN: 9781723748691

Progressive failure analyses results are presented for composite panels with and without a cutout and subjected to in-plane shear loading and compression loading well into their postbuckling regime. Ply damage modes such as matrix cracking, fiber-matrix shear, and fiber failure are modeled by degrading the material properties. Results from finite element analyses are compared with experimental data. Good agreement between experimental data and numerical results are observed for most structural configurations when initial geometric imperfections are appropriately modeled.Jaunky, Navin and Ambur, Damodar R. and Davila, Carlos G. and Hilburger, Mark and Bushnell, Dennis M. (Technical Monitor)Langley Research CenterCOMPOSITE STRUCTURES; FAILURE ANALYSIS; BUCKLING; DYNAMIC STRUCTURAL ANALYSIS; COMPRESSION LOADS; FINITE ELEMENT METHOD; FIBER-MATRIX INTERFACES

Proceedings of the American Society for Composites 2014-Twenty-ninth Technical Conference on Composite Materials

Proceedings of the American Society for Composites 2014-Twenty-ninth Technical Conference on Composite Materials
Author: Hyonny Kim
Publisher: DEStech Publications, Inc
Total Pages: 3583
Release: 2014-09-17
Genre: Science
ISBN: 1605951242

New and not previously published U.S. and international research on composite and nanocomposite materialsFocus on health monitoring/diagnosis, multifunctionality, self-healing, crashworthiness, integrated computational materials engineering (ICME), and moreApplications to aircraft, armor, bridges, ships, and civil structures This fully searchable CD-ROM contains 270 original research papers on all phases of composite materials, presented by specialists from universities, NASA and private corporations such as Boeing. The document is divided into the following sections: Aviation Safety and Aircraft Structures; Armor and Protection; Multifunctional Composites; Effects of Defects; Out of Autoclave Processing; Sustainable Processing; Design and Manufacturing; Stability and Postbuckling; Crashworthiness; Impact and Dynamic Response; Natural, Biobased and Green; Integrated Computational Materials Engineering (ICME); Structural Optimization; Uncertainty Quantification; NDE and SHM Monitoring; Progressive Damage Modeling; Molecular Modeling; Marine Composites; Simulation Tools; Interlaminar Properties; Civil Structures; Textiles. The CD-ROM displays figures and illustrations in articles in full color along with a title screen and main menu screen. Each user can link to all papers from the Table of Contents and Author Index and also link to papers and front matter by using the global bookmarks which allow navigation of the entire CD-ROM from every article. Search features on the CD-ROM can be by full text including all key words, article title, author name, and session title. The CD-ROM has Autorun feature for Windows 2000 or higher products and can also be used with Macintosh computers. The CD includes the program for Adobe Acrobat Reader with Search 11.0. One year of technical support is included with your purchase of this product.

Nanocomposites with Unique Properties and Applications in Medicine and Industry

Nanocomposites with Unique Properties and Applications in Medicine and Industry
Author: John Cuppoletti
Publisher: BoD – Books on Demand
Total Pages: 376
Release: 2011-08-23
Genre: Technology & Engineering
ISBN: 9533073519

This book contains chapters on nanocomposites for engineering hard materials for high performance aircraft, rocket and automobile use, using laser pulses to form metal coatings on glass and quartz, and also tungsten carbide-cobalt nanoparticles using high voltage discharges. A major section of this book is largely devoted to chapters outlining and applying analytic methods needed for studies of nanocomposites. As such, this book will serve as good resource for such analytic methods.

Finite Element Analysis of Composite Laminates

Finite Element Analysis of Composite Laminates
Author: O.O. Ochoa
Publisher: Springer Science & Business Media
Total Pages: 234
Release: 1992-09-30
Genre: Science
ISBN: 9780792311256

Composite materials are increasingly used in aerospace, underwater, and automotive structures. To take advantage of the full potential of composite materials, structural analysts and designers must have accurate mathematical models and design methods at their disposal. The objective of this monograph is to present the laminated plate theories and their finite element models to study the deformation, strength and failure of composite structures. Emphasis is placed on engineering aspects, such as the analytical descriptions, effective analysis tools, modeling of physical features, and evaluation of approaches used to formulate and predict the response of composite structures. The first chapter presents an overview of the text. Chapter 2 is devoted to the introduction of the definitions and terminology used in composite materials and structures. Anisotropic constitutive relations and Iaminate plate theories are also reviewed. Finite element models of laminated composite plates are presented in Chapter 3. Numerical evaluation of element coefficient matrices, post-computation of strains and stresses, and sample examples of laminated plates in bending and vibration are discussed. Chapter 4 introduces damage and failure criteria in composite laminates. Finally, Chapter 5 is dedicated to case studies involving various aspects and types of composite structures. Joints, cutouts, woven composites, environmental effects, postbuckling response and failure of composite laminates are discussed by considering specific examples.

Recent Developments in the Theory of Shells

Recent Developments in the Theory of Shells
Author: Holm Altenbach
Publisher: Springer Nature
Total Pages: 799
Release: 2019-09-25
Genre: Technology & Engineering
ISBN: 3030177475

This book commemorates the 80th birthday of Prof. W. Pietraszkiewicz, a prominent specialist in the field of general shell theory. Reflecting Prof. Pietraszkiewicz’s focus, the respective papers address a range of current problems in the theory of shells. In addition, they present other structural mechanics problems involving dimension-reduced models. Lastly, several applications are discussed, including material models for such dimension-reduced structures.