Author: Longbiao Li
Publisher: John Wiley & Sons
ISBN: 3527346376
Category : Technology & Engineering
Languages : en
Pages : 490
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Book Description
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: Michael J. Verrilli
Publisher: ASTM International
ISBN: 080312001X
Category :
Languages : en
Pages : 382
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Book Description
Author: Dana G. Allen
Publisher:
ISBN:
Category : Ceramic-matrix composites
Languages : en
Pages : 258
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Book Description
Author: Dana G. Allen
Publisher:
ISBN:
Category : Ceramic-matrix composites
Languages : en
Pages : 0
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 131
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Book Description
Isothermal fatigue and in-phase thermomechanical fatigue (TMF) tests were performed on a unidirectional, continuous-fiber, Nicalon - reinforced calcium aluminosilicate glass-ceramic composite (10116, SiC/CAS-II). Monotonic tensile tests were performed; at 1100 deg. C and 100 MPa/sec to determine the material's ultimate strength and proportional limit. Isothermal fatigue tests at 100 deg. C 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 maximum stress. All fatigue tests used a maximum stress of 100 MPa, R = 0.1. TMF loading profiles were identical to the isothermal loading profiles, but the temperature was cycled between 500 and 1100 deg. C. All fatigued specimens reached run out (1000 cycles) and were tested in tension at 1100 deg. C immediately following the fatigue tests. Residual modulus, residual strength, cyclic stress-strain modulus, and strain accumulation were all examined as possible damage indicators. Strain accumulation allowed for the greatest distinction to be made among the type of tests performed. Fiber and matrix stress analyses and creep data for this material suggest that matrix creep is the primary source of damage for the fatigue loading histories investigated.
Author: Huseyin Sehitoglu
Publisher: ASTM International
ISBN: 0803118716
Category : AIIoys
Languages : en
Pages : 259
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Book Description
Author: Michael G. Castelli
Publisher: ASTM International
ISBN: 9780803120013
Category : Alloys
Languages : en
Pages : 374
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Book Description
Contains 20 papers presented at a symposium in November 1994. The first section discusses high-temperature alloys used for gas turbine engines, and steels which are subjected to thermomechanical fatigue in power generation applications. The second section covers titanium matrix composites, which hav
Author: J. Bressers
Publisher: Springer Science & Business Media
ISBN: 9780792339939
Category : Science
Languages : en
Pages : 526
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Book Description
This volume contains 50 contributions presented at the symposium `Fatigue under Thermal and Mechanical Loading'. The symposium addressed the mechanisms, mechanics and modelling of thermal and thermal-mechanical load effects on conventional and advanced structural materials. The proceedings provide an update of the research efforts in thermal and thermal-mechanical fatigue. The papers cover a wide range of materials, including metallic alloys from steels to advanced superalloy single crystals, ceramics as well as composites. Topics encompass recent developments in specimen and component testing techniques, mechanisms and mechanics of inelastic deformation, crack initiation and crack growth, as well as damage modelling for life-time prediction. The book is of interest to materials scientists, mechanical engineers and design engineers involved in the design of components for use at high temperatures.
Author: Shankar Mall
Publisher: CRC Press
ISBN: 9781566765671
Category : Technology & Engineering
Languages : en
Pages : 482
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Book Description
A review and summary of advancements related to mechanical behavior and related mechanics issues of titanium matrix composites (TMCs), a class of high-temperature materials useful in the propulsion and airframe components in advanced aerospace systems. After an introduction to TMCs, different authors discuss the following topics: monotonic response, micromechanical theories, fiber-matrix interface, fatigue failure mechanisms, fatigue and thermomechanical fatigue life prediction, creep behavior, fatigue crack growth, notch strength, and micromechanical analysis and modeling. Annotation copyrighted by Book News, Inc., Portland, OR
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.
