Probabilistic Evaluation of Advanced Ceramic Matrix Composite Structures
| Author | : Galib H. Abumeri |
| Publisher | : |
| Total Pages | : 56 |
| Release | : 2003 |
| Genre | : Ceramic-matrix composites |
| ISBN | : |
Probabilistic Evaluation Of Advanced Ceramic Matrix Composite Structures
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Probabilistic Evaluation of Advanced Ceramic Matrix Composite Structures
| Author | : National Aeronautics and Space Administration (NASA) |
| Publisher | : Createspace Independent Publishing Platform |
| Total Pages | : 52 |
| Release | : 2018-06-03 |
| Genre | : |
| ISBN | : 9781720665823 |
The objective of this report is to summarize the deterministic and probabilistic structural evaluation results of two structures made with advanced ceramic composites (CMC): internally pressurized tube and uniformly loaded flange. The deterministic structural evaluation includes stress, displacement, and buckling analyses. It is carried out using the finite element code MHOST, developed for the 3-D inelastic analysis of structures that are made with advanced materials. The probabilistic evaluation is performed using the integrated probabilistic assessment of composite structures computer code IPACS. The affects of uncertainties in primitive variables related to the material, fabrication process, and loadings on the material property and structural response behavior are quantified. The primitive variables considered are: thermo-mechanical properties of fiber and matrix, fiber and void volume ratios, use temperature, and pressure. The probabilistic structural analysis and probabilistic strength results are used by IPACS to perform reliability and risk evaluation of the two structures. The results will show that the sensitivity information obtained for the two composite structures from the computational simulation can be used to alter the design process to meet desired service requirements. In addition to detailed probabilistic analysis of the two structures, the following were performed specifically on the CMC tube: (1) predicted the failure load and the buckling load, (2) performed coupled non-deterministic multi-disciplinary structural analysis, and (3) demonstrated that probabilistic sensitivities can be used to select a reduced set of design variables for optimization.Abumeri, Galib H. and Chamis, Christos C.Glenn Research CenterCERAMIC MATRIX COMPOSITES; STRESS ANALYSIS; STRUCTURAL ANALYSIS; STRUCTURAL FAILURE; FINITE ELEMENT METHOD; BUCKLING; SHEAR; PROBABILITY THEORY
Advanced Ceramic Matrix Composites
| Author | : Edward R. Generazio |
| Publisher | : CRC Press |
| Total Pages | : 244 |
| Release | : 1995-12-14 |
| Genre | : Technology & Engineering |
| ISBN | : 9781566763349 |
Advanced ceramic composites are the focus of intense research and development today because these materials offer a unique mix of properties that make them useful and economical for major engineering applications. As part of this R&D effort, new tools for characterization, evaluation and testing have been developed and are in current use. This book brings together leading materials researchers to report on these developments. In-depth reports cover evaluation and test methods as they relate to the design of specific advanced ceramic composite materials and their applications. The reports are supplemented with extensive test result data and illustrated with numerous micrographs and schematics.
New structural materials technologies : opportunities for the use of advanced ceramics and composites.
| Author | : United States. Office of Technology Assessment |
| Publisher | : DIANE Publishing |
| Total Pages | : 83 |
| Release | : 1986 |
| Genre | : Ceramic materials |
| ISBN | : 1428923063 |
Time-Dependent Mechanical Behavior of Ceramic-Matrix Composites at Elevated Temperatures
| Author | : Longbiao Li |
| Publisher | : Springer Nature |
| Total Pages | : 373 |
| Release | : 2020-04-18 |
| Genre | : Technology & Engineering |
| ISBN | : 9811532745 |
This book investigates the time-dependent behavior of fiber-reinforced ceramic-matrix composites (CMCs) at elevated temperatures. The author combines the time-dependent damage mechanisms of interface and fiber oxidation and fracture with the micromechanical approach to establish the relationships between the first matrix cracking stress, matrix multiple cracking evolution, tensile strength, tensile stress-strain curves and tensile fatigue of fiber-reinforced CMCs and time. Then, using damage models of energy balance, the fracture mechanics approach, critical matrix strain energy criterion, Global Load Sharing criterion, and hysteresis loops he determines the first matrix cracking stress, interface debonded length, matrix cracking density, fibers failure probability, tensile strength, tensile stress-strain curves and fatigue hysteresis loops. Lastly, he predicts the time-dependent mechanical behavior of different fiber-reinforced CMCs, i.e., C/SiC and SiC/SiC, using the developed approaches, in order to reduce the failure risk during the operation of aero engines. The book is intended for undergraduate and graduate students who are interested in the mechanical behavior of CMCs, researchers investigating the damage evolution of CMCs at elevated temperatures, and designers responsible for hot-section CMC components in aero engines.
Enhancement of the Probabilistic Ceramic Matrix Composite Analyzer (Pcemcan) Computer Code
| Author | : National Aeronautics and Space Administration (NASA) |
| Publisher | : Createspace Independent Publishing Platform |
| Total Pages | : 38 |
| Release | : 2018-05-31 |
| Genre | : |
| ISBN | : 9781720506065 |
This report represents a final technical report for Order No. C-78019-J entitled "Enhancement of the Probabilistic Ceramic Matrix Composite Analyzer (PCEMCAN) Computer Code." The scope of the enhancement relates to including the probabilistic evaluation of the D-Matrix terms in MAT2 and MAT9 material properties card (available in CEMCAN code) for the MSC/NASTRAN. Technical activities performed during the time period of June 1, 1999 through September 3, 1999 have been summarized, and the final version of the enhanced PCEMCAN code and revisions to the User's Manual is delivered along with. Discussions related to the performed activities were made to the NASA Project Manager during the performance period. The enhanced capabilities have been demonstrated using sample problems.Shah, AshwinGlenn Research CenterCERAMIC MATRIX COMPOSITES; COMPUTER PROGRAMS; APPLICATIONS PROGRAMS (COMPUTERS); PROBABILITY DISTRIBUTION FUNCTIONS; MECHANICAL PROPERTIES; NASTRAN; MODULUS OF ELASTICITY; BENDING; STIFFNESS MATRIX; SENSITIVITY
Ceramic Matrix Composites
| Author | : Composite Materials Handbook – 17 (CMH-17) |
| Publisher | : SAE International |
| Total Pages | : 491 |
| Release | : 2017-06-29 |
| Genre | : Technology & Engineering |
| ISBN | : 0768084369 |
The fifth volume of this six-volume compendium publishes technical guidance and properties on ceramic matrix composite material systems. The selected guidance on technical topics related to this class of composites includes material selection, processing, characterization, testing, data reduction, design, analysis, quality control, application, case histories, and lessons learned of typical ceramic matrix composite materials. Volume 5, which covers ceramic matrix composites, supersedes MIL-HDBK-17-5 of June 17, 2002. The Composite Materials Handbook, referred to by industry groups as CMH-17, is an engineering reference tool that contains over 1,000 records of the latest test data for polymer matrix, metal matrix, ceramic matrix, and structural sandwich composites. CMH-17 provides information and guidance necessary to design and fabricate end items from composite materials. It includes properties of composite materials that meet specific data requirements as well as guidelines for design, analysis, material selection, manufacturing, quality control, and repair. The primary purpose of the handbook is to standardize engineering methodologies related to testing, data reduction, and reporting of property data for current and emerging composite materials. It is used by engineers worldwide in designing and fabricating products made from composite materials.
Advances in High Temperature Ceramic Matrix Composites and Materials for Sustainable Development
| Author | : Mrityunjay Singh |
| Publisher | : John Wiley & Sons |
| Total Pages | : 590 |
| Release | : 2017-06-22 |
| Genre | : Technology & Engineering |
| ISBN | : 1119407532 |
Global population growth and tremendous economic development has brought us to the crossroads of long-term sustainability and risk of irreversible changes in the ecosystem. Energy efficient and ecofriendly technologies and systems are critically needed for further growth and sustainable development. While ceramic matrix composites were originally developed to overcome problems associated with the brittle nature of monolithic ceramics, today the composites can be tailored for customized purposes and offer energy efficient and ecofriendly applications, including aerospace, ground transportation, and power generation systems. The 9th International Conference on High Temperature Ceramic Matrix Composites (HTCMC 9) was held in Toronto, Canada, June 26-30, 2016 to discuss challenges and opportunities in manufacturing, commercialization, and applications for these important material systems. The Global Forum on Advanced Materials and Technologies for Sustainable Development (GFMAT 2016) was held in conjunction with HTCMC 9 to address key issues, challenges, and opportunities in a variety of advanced materials and technologies that are critically needed for sustainable societal development. This Ceramic Transactions volume contains a collection of peer reviewed papers from the 16 below symposia that were submitted from these two conferences Design and Development of Advanced Ceramic Fibers, Interfaces, and Interphases in Composites- A Symposium in Honor of Professor Roger Naslain Innovative Design, Advanced Processing, and Manufacturing Technologies Materials for Extreme Environments: Ultrahigh Temperature Ceramics (UHTCs) and Nano-laminated Ternary Carbides and Nitrides (MAX Phases) Polymer Derived Ceramics and Composites Advanced Thermal and Environmental Barrier Coatings: Processing, Properties, and Applications Thermomechanical Behavior and Performance of Composites Ceramic Integration and Additive Manufacturing Technologies Component Testing and Evaluation of Composites CMC Applications in Transportation and Industrial Systems Powder Processing Innovation and Technologies for Advanced Materials and Sustainable Development Novel, Green, and Strategic Processing and Manufacturing Technologies Ceramics for Sustainable Infrastructure: Geopolymers and Sustainable Composites Advanced Materials, Technologies, and Devices for Electro-optical and Medical Applications Porous Ceramics for Advanced Applications Through Innovative Processing Multifunctional Coatings for Sustainable Energy and Environmental Applications
19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B, Volume 16, Issue 5
| Author | : John B. Wachtman |
| Publisher | : John Wiley & Sons |
| Total Pages | : 577 |
| Release | : 2009-09-28 |
| Genre | : Technology & Engineering |
| ISBN | : 0470316357 |
This volume is part of the Ceramic Engineering and Science Proceeding (CESP) series. This series contains a collection of papers dealing with issues in both traditional ceramics (i.e., glass, whitewares, refractories, and porcelain enamel) and advanced ceramics. Topics covered in the area of advanced ceramic include bioceramics, nanomaterials, composites, solid oxide fuel cells, mechanical properties and structural design, advanced ceramic coatings, ceramic armor, porous ceramics, and more.
