Damage, Fracture, and Fatigue of Ceramic-Matrix Composites

Damage, Fracture, and Fatigue of Ceramic-Matrix Composites PDF Author: Longbiao Li
Publisher: Springer
ISBN: 9811317836
Category : Technology & Engineering
Languages : en
Pages : 244

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Book Description
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.

Damage, Fracture, and Fatigue of Ceramic-Matrix Composites

Damage, Fracture, and Fatigue of Ceramic-Matrix Composites PDF Author: Longbiao Li
Publisher: Springer
ISBN: 9811317836
Category : Technology & Engineering
Languages : en
Pages : 244

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Book Description
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.

Damage and Fracture of Ceramic-Matrix Composites Under Stochastic Loading

Damage and Fracture of Ceramic-Matrix Composites Under Stochastic Loading PDF Author: Longbiao Li
Publisher: Springer Nature
ISBN: 9811621411
Category : Technology & Engineering
Languages : en
Pages : 205

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Book Description
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.

Review of Developments in Fracture and Fatigue of Ceramic Matrix Composites

Review of Developments in Fracture and Fatigue of Ceramic Matrix Composites PDF Author: Victor Birman
Publisher:
ISBN: 9781423553434
Category :
Languages : en
Pages : 70

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Book Description
A review of recent developments and state of the art in damage, fatigue and particularly, high-temperature fatigue of ceramic matrix composites is presented. Both laminated, as well as woven configurations are considered, while whisker and particle-reinforced materials are not covered in this review. Based on a detailed discussion of the mechanisms of failure, the problems that have to be addressed for a successful implementation of ceramic matrix composites in design are outlined.

Nonlinear Behavior of Ceramic-Matrix Composites

Nonlinear Behavior of Ceramic-Matrix Composites PDF Author: Longbiao Li
Publisher: Woodhead Publishing
ISBN: 0323858171
Category : Technology & Engineering
Languages : en
Pages : 252

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Book Description
Nonlinear Damage Behavior of Ceramic Matrix Composites help readers [researchers, material scientists and design engineers] gain greater understanding on the damage mechanisms inside CMCs so they can better design components used in aeronautics and astronautics. Key areas addressed in the book include: the nonlinear damage behavior of ceramic-matrix composites, including damage mechanisms and models, nonlinear damage behavior of ceramic-matrix composites under tensile and fatigue loading, strain-rate dependent, stochastic loading dependent, and time dependent nonlinear damage behavior, and the effect of pre-exposure and thermal fatigue on non-linear damage behavior of ceramic-matrix composites. Provides comprehensive coverage on damage mechanisms and models under tensile and cyclic fatigue loading which ultimately control nonlinear behavior Covers nonlinear damage analyses of CMC components and experimental observations of damage evolution Presents extensive knowledge on fracture mechanic principles used in the design of aerospace propulsion systems

Interface of Ceramic-Matrix Composites

Interface of Ceramic-Matrix Composites PDF Author: Longbiao Li
Publisher: John Wiley & Sons
ISBN: 3527828036
Category : Technology & Engineering
Languages : en
Pages : 216

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Book Description
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.

Durability of Ceramic-Matrix Composites

Durability of Ceramic-Matrix Composites PDF Author: Li Longbiao
Publisher: Woodhead Publishing
ISBN: 0081030223
Category : Technology & Engineering
Languages : en
Pages : 478

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Book Description
Durability of Ceramic-Matrix Composites presents the latest information on these high-temperature structural materials and their outstanding advantages over more conventional materials, including their high specific strength, high specific modulus, high temperature resistance and good thermal stability. The critical nature of the application of these advanced materials makes it necessary to have a complete understanding of their characterization. This book focuses explicitly on the durability of CMCs and will be extremely valuable for materials scientists and engineers who are dealing with the simulation of durability response and fatigue of ceramic matrix composites. Provides the latest theoretical and applied research in the field of ceramic matrix composites, particularly as it relates to usage in aerospace propulsion systems Presents extensive information on the micromechanics of damage evolution, lifetime prediction and durability in ceramic matrix composites Details parameter studies that are valuable for materials development and lifetime durability studies

High Temperature Mechanical Behaviour of Ceramic Composites

High Temperature Mechanical Behaviour of Ceramic Composites PDF Author: Karl Jakus
Publisher: Elsevier
ISBN: 0080523889
Category : Technology & Engineering
Languages : en
Pages : 558

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Book Description
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.

Fracture and Fatigue Crack Growth Behavior of Advanced Ceramic Matrix Composites

Fracture and Fatigue Crack Growth Behavior of Advanced Ceramic Matrix Composites PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
Ultrasonic C-scans have successfully been used to investigate damage from notches and holes in Nexte1610 /Aluminosilicate (N610/AS) during tensile and fatigue loading conditions. Sectioned fatigue specimens verified that the region of distributed matrix damage and longitudinal fiber breakage correlated well with the C-scan damage zone at 23C. At 950C the C-scan data showed that the damage zone was confined to the notch plane where damage was primarily due to self similar crack growth. Sectioned samples verified that longitudinal fiber breaks were predominant in the vicinity of the matrix crack. The results from these tests are being employed to develop damage and failure criteria for N610/AS and other woven CMC.

Matrix Cracking in Ceramic-Matrix Composites

Matrix Cracking in Ceramic-Matrix Composites PDF Author: Longbiao Li
Publisher: Springer Nature
ISBN: 9811902321
Category : Technology & Engineering
Languages : en
Pages : 170

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Book Description
This book focuses on the matrix cracking behavior in ceramic–matrix composites (CMCs), including first matrix cracking behavior, matrix cracking evolution behavior, matrix crack opening and closure behavior considering temperature and oxidation. The micro-damage mechanisms are analyzed, and the micromechanical damage models are developed to characterize the cracking behavior. Experimental matrix cracking behavior of different CMCs at room and elevated temperatures is predicted. The book can help the material scientists and engineering designers to better understand the cracking behavior in CMCs.

Time-Dependent Mechanical Behavior of Ceramic-Matrix Composites at Elevated Temperatures

Time-Dependent Mechanical Behavior of Ceramic-Matrix Composites at Elevated Temperatures PDF Author: Longbiao Li
Publisher: Springer Nature
ISBN: 9811532745
Category : Technology & Engineering
Languages : en
Pages : 373

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Book Description
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.