Thermomechanical Fatigue Of Ceramic Matrix Composites
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| Author | : Longbiao Li |
| Publisher | : John Wiley & Sons |
| Total Pages | : 490 |
| Release | : 2019-12-04 |
| Genre | : Technology & Engineering |
| ISBN | : 3527346376 |
Guides researchers and practitioners toward developing highly reliable ceramic-matrix composites The book systematically introduces the thermomechanical fatigue behavior of fiber-reinforced ceramic-matrix composites (CMCs) and environmental barrier coatings, including cyclic loading/unloading tensile behavior, cyclic fatigue behavior, dwell-fatigue behavior, thermomechanical fatigue behavior, and interface degradation behavior. It discusses experimental verification of CMCs and explains how to determine the thermomechanical properties. It also presents damage evolution models, lifetime prediction methods, and interface degradation rules. Thermomechanical Fatigue of Ceramic-Matrix Composites offers chapters covering unidirectional ceramic-matrix composites and cross-ply and 2D woven ceramic-matrix composites. For cyclic fatigue behavior of CMCs, it looks at the effects of fiber volume fraction, fatigue peak stress, fatigue stress ratio, matrix crack spacing, matrix crack mode, and woven structure on fatigue damage evolution. Both the Dwell-fatigue damage evolution and lifetime predictions models are introduced in the next chapter. Experimental comparisons of the cross-ply SiC/MAS composite, 2D SiC/SiC composite, and 2D NextelTM 720/Alumina composite are also included. Remaining sections examine: thermomechanical fatigue hysteresis loops; in-phase thermomechanical fatigue damage; out-of-phase thermomechanical fatigue; interface degradation models; and much more. -Offers unique content dedicated to thermomechanical fatigue behavior of ceramic-matrix composites (CMCs) and environmental barrier coatings -Features comprehensive data tables and experimental verifications -Covers a highly application-oriented subject?CMCs are being increasingly utilized in jet engines, industrial turbines, and exhaust systems Thermomechanical Fatigue of Ceramic-Matrix Composites is an excellent book for developers and users of CMCs, as well as organizations involved in evaluation and characterization of CMCs. It will appeal to materials scientists, construction engineers, process engineers, and mechanical engineers.
| Author | : Longbiao Li |
| Publisher | : John Wiley & Sons |
| Total Pages | : 749 |
| Release | : 2019-08-09 |
| Genre | : Technology & Engineering |
| ISBN | : 3527822607 |
Guides researchers and practitioners toward developing highly reliable ceramic-matrix composites The book systematically introduces the thermomechanical fatigue behavior of fiber-reinforced ceramic-matrix composites (CMCs) and environmental barrier coatings, including cyclic loading/unloading tensile behavior, cyclic fatigue behavior, dwell-fatigue behavior, thermomechanical fatigue behavior, and interface degradation behavior. It discusses experimental verification of CMCs and explains how to determine the thermomechanical properties. It also presents damage evolution models, lifetime prediction methods, and interface degradation rules. Thermomechanical Fatigue of Ceramic-Matrix Composites offers chapters covering unidirectional ceramic-matrix composites and cross-ply and 2D woven ceramic-matrix composites. For cyclic fatigue behavior of CMCs, it looks at the effects of fiber volume fraction, fatigue peak stress, fatigue stress ratio, matrix crack spacing, matrix crack mode, and woven structure on fatigue damage evolution. Both the Dwell-fatigue damage evolution and lifetime predictions models are introduced in the next chapter. Experimental comparisons of the cross-ply SiC/MAS composite, 2D SiC/SiC composite, and 2D NextelTM 720/Alumina composite are also included. Remaining sections examine: thermomechanical fatigue hysteresis loops; in-phase thermomechanical fatigue damage; out-of-phase thermomechanical fatigue; interface degradation models; and much more. -Offers unique content dedicated to thermomechanical fatigue behavior of ceramic-matrix composites (CMCs) and environmental barrier coatings -Features comprehensive data tables and experimental verifications -Covers a highly application-oriented subject?CMCs are being increasingly utilized in jet engines, industrial turbines, and exhaust systems Thermomechanical Fatigue of Ceramic-Matrix Composites is an excellent book for developers and users of CMCs, as well as organizations involved in evaluation and characterization of CMCs. It will appeal to materials scientists, construction engineers, process engineers, and mechanical engineers.
| Author | : Won Jae Lee |
| Publisher | : |
| Total Pages | : 154 |
| Release | : 1991 |
| Genre | : Ceramic materials |
| ISBN | : |
| Author | : Dana G. Allen |
| Publisher | : |
| Total Pages | : 258 |
| Release | : 1995 |
| Genre | : Ceramic-matrix composites |
| ISBN | : |
| Author | : Dana G. Allen |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 1995 |
| Genre | : Ceramic-matrix composites |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 141 |
| Release | : 1991 |
| Genre | : |
| ISBN | : |
Ceramic matrix composites are being considered for use in advanced turbine engines and other applications where thermomechanical fatigue (TMF) conditions exist. Isothermal fatigue and in-phase TMF tests were performed on a unidirectional, continuous-fiber, Nicalon reinforced calcium aluminosilicate glass-ceramic material (O16, SiC/CAS-II). Monotonic tensile tests were performed at 1100 deg C (2012 deg F) and 100 MPa/sec to determine the material's ultimate strength and proportional limit . Isothermal fatigue tests at 1100 deg C (2012 deg F) employed two loading profiles, a triangular waveform with ramp times of 60 seconds, and a similar profile with a superimposed 60 second hold time at These tests used a maximum stress of 100 MPa (40% of sigma pl) R = 0.1. TMF loading profiles were identical to the isothermal loading profiles. During the TMF tests, the temperature was cycled between 500 and 1100 deg c(932 and 2012 deg F) in time with the load. Run out was arbitrarily set at 1000 cycles for all fatigue profiles. All fatigued specimens reached run out and were tested in tension at 1100 deg C and 100 MPa/sec immediately following the isothermal and thermomechanical tests. Residual modulus, residual strength, hysteretic modulus, and strain accumulation were all explored as possible damage indicators. Strain accumulation appeared to be the parameter which allowed for the greatest distinction to be made among the types of tests performed. Stress analyses performed on the fiber and matrix material and creep data for the composite suggest that matrix creep is the primary source of damage in the isothermal and thermomechanical fatigue profiles investigated for this project.
| Author | : Karl Jakus |
| Publisher | : Elsevier |
| Total Pages | : 569 |
| Release | : 1995-06-28 |
| Genre | : Technology & Engineering |
| ISBN | : 0080523889 |
High Temperature Mechanical Behavior of Ceramic Composites provides an up-to-date comprehensive coverage of the mechanical behavior of ceramic matrix composites at elevated temperatures. Topics include both short-term behavior (strength, fracture toughness and R-curve behavior) and long-term behavior (creep, creep-fatigue, delayed failure and lifetime). Emphasis is on a review of fundamentals and on the mechanics and mechanisms underlying properties. This is the first time that complete information of elevated temperature behavior of ceramic composites has ever been compacted together in a single volume. Of particular importance is that each chapter, written by internationally recognized experts, includes a substantial review component enabling the new material to be put in proper perspective. Shanti Nair is Associate Professor at the Department of Mechanical Engineering at the University of Massachusetts at Amherst. Karl Jakus is Professor at the University of Massachusetts at Amherst.
| Author | : Longbiao Li |
| Publisher | : Springer Nature |
| Total Pages | : 139 |
| Release | : |
| Genre | : |
| ISBN | : 9819712947 |
| Author | : Narottam P. Bansal |
| Publisher | : John Wiley & Sons |
| Total Pages | : 725 |
| Release | : 2014-10-27 |
| Genre | : Technology & Engineering |
| ISBN | : 1118832892 |
This book is a comprehensive source of information on various aspects of ceramic matrix composites (CMC). It covers ceramic and carbon fibers; the fiber-matrix interface; processing, properties and industrial applications of various CMC systems; architecture, mechanical behavior at room and elevated temperatures, environmental effects and protective coatings, foreign object damage, modeling, life prediction, integration and joining. Each chapter in the book is written by specialists and internationally renowned researchers in the field. This book will provide state-of-the-art information on different aspects of CMCs. The book will be directed to researchers working in industry, academia, and national laboratories with interest and professional competence on CMCs. The book will also be useful to senior year and graduate students pursuing degrees in ceramic science and engineering, materials science and engineering, aeronautical, mechanical, and civil or aerospace engineering. Presents recent advances, new approaches and discusses new issues in the field, such as foreign object damage, life predictions, multiscale modeling based on probabilistic approaches, etc. Caters to the increasing interest in the application of ceramic matrix composites (CMC) materials in areas as diverse as aerospace, transport, energy, nuclear, and environment. CMCs are considered ans enabling technology for advanced aeropropulsion, space propulsion, space power, aerospace vehicles, space structures, as well as nuclear and chemical industries. Offers detailed descriptions of ceramic and carbon fibers; fiber-matrix interface; processing, properties and industrial applications of various CMC systems; architecture, mechanical behavior at room and elevated temperatures, environmental effects and protective coatings, foreign object damage, modeling, life prediction, integration/joining.
| Author | : Longbiao Li |
| Publisher | : Springer |
| Total Pages | : 249 |
| Release | : 2018-08-27 |
| Genre | : Technology & Engineering |
| ISBN | : 9811317836 |
This book focuses on the damage, fracture and fatigue of ceramic-matrix composites. It investigates tensile damage and fracture, fatigue hysteresis, and the properties of interfaces subjected to cyclic fatigue loading. Further, it predicts fatigue life at room and elevated temperatures using newly developed damage models and methods, and it analyzes and compares damage, fracture and fatigue behavior of different fiber performs: unidirectional, cross-ply, 2D and 2.5D woven. The developed models and methods can be used to predict the damage and lifetime of ceramic-matrix composites during applications on hot section components.Ceramic-matrix composites (CMCs) are high-temperature structural materials with the significant advantages of high specific strength, high specific modulus, high temperature resistance and good thermal stability, which play a crucial role in the development of high thrust weight ratio aero engines. The critical nature of the application of these advanced materials makes comprehensive characterization a necessity, and as such this book provides designers with essential information pertaining not only to the strength of the materials, but also to their fatigue and damage characteristics.
