Time Dependent Mechanical Behavior Of Ceramic Matrix Composites At Elevated Temperatures

Author : Longbiao Li
Publisher : Unknown
Page : 0 pages
File Size : 49,6 Mb
Release : 2020
Category : Aerospace engineering
ISBN : 9811532753

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Time-Dependent Mechanical Behavior of Ceramic-Matrix Composites at Elevated Temperatures by Longbiao Li Pdf

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. .

Author : Longbiao Li
Publisher : Springer Nature
Page : 373 pages
File Size : 44,6 Mb
Release : 2020-04-18
Category : Technology & Engineering
ISBN : 9789811532740

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Time-Dependent Mechanical Behavior of Ceramic-Matrix Composites at Elevated Temperatures by Longbiao Li Pdf

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.

Author : Karl Jakus,Shanti Nair
Publisher : Elsevier
Page : 558 pages
File Size : 43,9 Mb
Release : 1995-06-28
Category : Technology & Engineering
ISBN : 9780080523880

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High Temperature Mechanical Behaviour of Ceramic Composites by Karl Jakus,Shanti Nair Pdf

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 : John Wiley & Sons
Page : 386 pages
File Size : 42,6 Mb
Release : 2021-07-06
Category : Technology & Engineering
ISBN : 9783527349036

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High Temperature Mechanical Behavior of Ceramic-Matrix Composites by Longbiao Li Pdf

High Temperature Mechanical Behavior of Ceramic-Matrix Composites Covers the latest research on the high-temperature mechanical behavior of ceramic-matrix composites Due to their high temperature resistance, strength and rigidity, relatively light weight, and corrosion resistance, ceramic-matrix composites (CMCs) are widely used across the aerospace and energy industries. As these advanced composites of ceramics and various fibers become increasingly important in the development of new materials, understanding the high-temperature mechanical behavior and failure mechanisms of CMCs is essential to ensure the reliability and safety of practical applications. High Temperature Mechanical Behavior of Ceramic-Matrix Composites examines the behavior of CMCs at elevated temperature—outlining the latest developments in the field and presenting the results of recent research on different CMC characteristics, material properties, damage states, and temperatures. This up-to-date resource investigates the high-temperature behavior of CMCs in relation to first matrix cracking, matrix multiple cracking, tensile damage and fracture, fatigue hysteresis loops, stress-rupture, vibration damping, and more. This authoritative volume: Details the relationships between various high-temperature conditions and experiment results Features an introduction to the tensile, vibration, fatigue, and stress-rupture behavior of CMCs at elevated temperatures Investigates temperature- and time-dependent cracking stress, deformation, damage, and fracture of fiber-reinforced CMCs Includes full references and internet links to source material Written by a leading international researcher in the field, High Temperature Mechanical Behavior of Ceramic-Matrix Composites is an invaluable resource for materials scientists, surface chemists, organic chemists, aerospace engineers, and other professionals working with CMCs.

Author : Longbiao Li
Publisher : John Wiley & Sons
Page : 386 pages
File Size : 49,7 Mb
Release : 2021-06-08
Category : Technology & Engineering
ISBN : 9783527831784

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High Temperature Mechanical Behavior of Ceramic-Matrix Composites by Longbiao Li Pdf

High Temperature Mechanical Behavior of Ceramic-Matrix Composites Covers the latest research on the high-temperature mechanical behavior of ceramic-matrix composites Due to their high temperature resistance, strength and rigidity, relatively light weight, and corrosion resistance, ceramic-matrix composites (CMCs) are widely used across the aerospace and energy industries. As these advanced composites of ceramics and various fibers become increasingly important in the development of new materials, understanding the high-temperature mechanical behavior and failure mechanisms of CMCs is essential to ensure the reliability and safety of practical applications. High Temperature Mechanical Behavior of Ceramic-Matrix Composites examines the behavior of CMCs at elevated temperature—outlining the latest developments in the field and presenting the results of recent research on different CMC characteristics, material properties, damage states, and temperatures. This up-to-date resource investigates the high-temperature behavior of CMCs in relation to first matrix cracking, matrix multiple cracking, tensile damage and fracture, fatigue hysteresis loops, stress-rupture, vibration damping, and more. This authoritative volume: Details the relationships between various high-temperature conditions and experiment results Features an introduction to the tensile, vibration, fatigue, and stress-rupture behavior of CMCs at elevated temperatures Investigates temperature- and time-dependent cracking stress, deformation, damage, and fracture of fiber-reinforced CMCs Includes full references and internet links to source material Written by a leading international researcher in the field, High Temperature Mechanical Behavior of Ceramic-Matrix Composites is an invaluable resource for materials scientists, surface chemists, organic chemists, aerospace engineers, and other professionals working with CMCs.

Author : Longbiao Li
Publisher : Springer Nature
Page : 134 pages
File Size : 41,7 Mb
Release : 2022-11-17
Category : Technology & Engineering
ISBN : 9789811978388

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Vibration Behavior in Ceramic-Matrix Composites by Longbiao Li Pdf

This book focuses on the vibration behavior of ceramic-matrix composites (CMCs), including (1) vibration natural frequency of intact and damaged CMCs; (2) vibration damping of CMCs considering fibers debonding and fracture; (3) temperature-dependent vibration damping of CMCs; (4) time-dependent vibration damping of CMCs; and (5) cyclic-dependent vibration damping of CMCs. Ceramic-matrix composites (CMCs) possess low material density (i.e., only 1/4 or 1/3 of high-temperature alloy) and high-temperature resistance, which can reduce cooling air and improve structure efficiency. Understanding the failure mechanisms and internal damage evolution represents an important step to ensure reliability and safety of CMCs. Relationships between microstructure, damage mechanisms, vibration natural frequency, and vibration damping of CMCs are established. This book helps the material scientists and engineering designers to understand and master the vibration behavior of CMCs at room and elevated temperatures.

Author : John M. Kennedy
Publisher : ASTM International
Page : 260 pages
File Size : 52,7 Mb
Release : 1990
Category : Ceramic-matrix composites
ISBN : 9780803113855

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Thermal and Mechanical Behavior of Metal Matrix and Ceramic Matrix Composites by John M. Kennedy Pdf

Of interest to researchers and practitioners in materials science, especially in the aerospace industry, 16 papers from a symposium in Atlanta, Georgia, November 1988 discuss the analysis, modeling, and behavior of both continuous and discontinuous ceramic and metal matrix composites, and methods of

Author : Longbiao Li
Publisher : Springer Nature
Page : 205 pages
File Size : 52,5 Mb
Release : 2021-06-08
Category : Technology & Engineering
ISBN : 9789811621413

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Damage and Fracture of Ceramic-Matrix Composites Under Stochastic Loading by Longbiao Li Pdf

This book presents the relationships between tensile damage and fracture, fatigue hysteresis loops, stress-rupture, fatigue life and fatigue limit stress, and stochastic loading stress. Ceramic-matrix composites (CMCs) possess low material density (i.e., only 1/4 - 1/3 of high-temperature alloy) and high-temperature resistance, which can reduce cooling air and improve structure efficiency. Understanding the failure mechanisms and internal damage evolution represents an important step to ensure reliability and safety of CMCs. This book investigates damage and fracture of fiber-reinforced ceramic-matrix composites (CMCs) subjected to stochastic loading, including: (1) tensile damage and fracture of fiber-reinforced CMCs subjected to stochastic loading; (2) fatigue hysteresis loops of fiber-reinforced CMCs subjected to stochastic loading; (3) stress rupture of fiber-reinforced CMCs with stochastic loading at intermediate temperature; (4) fatigue life prediction of fiber-reinforced CMCs subjected to stochastic overloading stress at elevated temperature; and (5) fatigue limit stress prediction of fiber-reinforced CMCs with stochastic loading. This book helps the material scientists and engineering designers to understand and master the damage and fracture of ceramic-matrix composites under stochastic loading.

Author : Longbiao Li
Publisher : CRC Press
Page : 118 pages
File Size : 52,9 Mb
Release : 2023-12-21
Category : Technology & Engineering
ISBN : 9781003816300

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High-Temperature Matrix Cracking, Opening and Closure in Ceramic-Matrix Composites by Longbiao Li Pdf

Ceramic matrix composites (CMCs) can withstand higher temperatures, reduce cooling airflow, improve turbine efficiency, and greatly reduce structural mass compared to the high temperature alloys. This book focuses on the matrix first/multiple cracking, crack opening and closure behavior in CMCs at high temperatures. While conducting in situ experimental observations to analyze the damage mechanisms and failure modes, the author develops micromechanical damage models and constitutive models to predict the first matrix cracking stress, multiple matrix cracking density, matrix crack opening displacement, and cracking closure stress at high temperatures. The effects of composite’s constituent properties, stress level, and ambient temperature on matrix cracking, opening, and closure are also discussed. This book will help material scientists and engineering designers to understand and master the matrix cracking and closure behavior of fiber-reinforced CMCs.

Author : Longbiao Li
Publisher : Springer Nature
Page : 139 pages
File Size : 45,5 Mb
Release : 2024-07-03
Category : Electronic
ISBN : 9789819712946

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Micromechanics of Ceramic-Matrix Composites at Elevated Temperatures by Longbiao Li Pdf

Author : Longbiao Li
Publisher : John Wiley & Sons
Page : 216 pages
File Size : 47,9 Mb
Release : 2020-08-26
Category : Technology & Engineering
ISBN : 9783527828050

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Interface of Ceramic-Matrix Composites by Longbiao Li Pdf

The book "Interfaces of Ceramic-Matrix Composites" demonstrates the definition, function and type of the interface of ceramic-matrix composites and gives comprehensive investigations on the interface design, interface characterization, interface assessment, and interface damage law of both C/SiC and SiC/SiC ceramic-matrix composites subjected to tensile and fatigue loading at different testing conditions. Thereby, it helps material designers and engineers to better design ceramic-matrix composite components for applications.

Author : Jonathan Salem,Dileep Singh
Publisher : John Wiley & Sons
Page : 286 pages
File Size : 49,9 Mb
Release : 2017-01-31
Category : Technology & Engineering
ISBN : 9781119320142

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Mechanical Properties and Performance of Engineering Ceramics and Composites XI by Jonathan Salem,Dileep Singh Pdf

A collection of 23 papers from The American Ceramic Society's 40th International Conference on Advanced Ceramics and Composites, held in Daytona Beach, Florida, January 24-29, 2016. This issue includes papers presented in Symposium 1 - Mechanical Behavior and Performance of Ceramics and Composites.

Author : Narottam P. Bansal,Jacques Lamon
Publisher : John Wiley & Sons
Page : 725 pages
File Size : 46,8 Mb
Release : 2014-10-27
Category : Technology & Engineering
ISBN : 9781118832899

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Ceramic Matrix Composites by Narottam P. Bansal,Jacques Lamon Pdf

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 : Jonathan Salem,Greg Hilmas,William G. Fahrenholtz
Publisher : John Wiley & Sons
Page : 187 pages
File Size : 52,9 Mb
Release : 2009-02-11
Category : Technology & Engineering
ISBN : 0470456353

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Mechanical Properties and Performance of Engineering Ceramics and Composites IV by Jonathan Salem,Greg Hilmas,William G. Fahrenholtz Pdf

This book provides a one-stop resource with current research on advanced ceramics. It is a collection of papers from The American Ceramic Society s 32nd International Conference on Advanced Ceramics and Composites, January 27-February 1, 2008. Topics include Processing-Microstructure-Mechanical Properties Correlations; Mechanical Performance of Ternary Compounds; Mechanical Performance of Ultra-High Temperature Ceramics; and more. Articles are logically organized to provide insight into various aspects of ceramic materials and advanced ceramics. This is a valuable, up-to-date resource for researchers working in ceramics engineering.

Author : Edgar Lara-Curzio
Publisher : John Wiley & Sons
Page : 532 pages
File Size : 55,5 Mb
Release : 2007-11-12
Category : Technology & Engineering
ISBN : 9780470196335

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Mechanical Properties and Performance of Engineering Ceramics and Composites III, Volume 28, Issue 2 by Edgar Lara-Curzio Pdf

Papers from The American Ceramic Society's 31st International Conference on Advanced Ceramics and Composites, held in Daytona Beach, Florida, January 21-26, 2007. Content includes fundamental links among processing, microstructure, properties and performance of ceramics and composites, and how these change as a function of time, temperature and environment. Reviews progress on ternary compounds, ultra-high temperature ceramics, innovative processing techniques to achieve multifunctional properties and materials for power generation and nuclear energy applications.