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Characterization Of Fatigue Damage Mechanisms In Continuous Fiber Reinforced Metal Matrix Composites
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Book Synopsis Characterization of Fatigue Damage Mechanisms in Continuous Fiber Reinforced Metal Matrix Composites by : William Steven Johnson
Download or read book Characterization of Fatigue Damage Mechanisms in Continuous Fiber Reinforced Metal Matrix Composites written by William Steven Johnson and published by . This book was released on 1979 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fatigue of Composite Materials by : K.L. Reifsnider
Download or read book Fatigue of Composite Materials written by K.L. Reifsnider and published by Elsevier. This book was released on 2012-12-02 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the first comprehensive review of its kind on the long-term behaviour of composite materials and structures subjected to time variable mechanical, thermal, and chemical influences, a subject of critical importance to the design, development, and certification of high performance engineering structures. Specific topics examined include damage, damage characterization, and damage mechanics; fatigue testing and evaluation; fatigue behaviour of short and long fibre reinforced polymer and metal matrix materials; viscoelastic and moisture effects; delamination; statistical considerations; the modeling of cumulative damage development; and life prediction. The volume provides an extensive presentation of data, discussions, and comparisons on the behaviour of the major types of material systems in current use, as well as extensive analysis and modeling (including the first presentation of work not found elsewhere). The book will be of special interest to engineers concerned with reliability, maintainability, safety, certification, and damage tolerance; to materials developers concerned with making materials for long-term service, especially under severe loads and environments, and to lecturers, students, and researchers involved in material system design, performance, solid mechanics, fatigue, durability, and composite materials. The scope of the work extends from entry level material to the frontiers of the subject.
Book Synopsis Fatigue Damage Mechanisms in Fiber Reinforced Metal Matrix Composites by : David Paul Walls
Download or read book Fatigue Damage Mechanisms in Fiber Reinforced Metal Matrix Composites written by David Paul Walls and published by . This book was released on 1992 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fatigue Damage Growth Mechanisms in Continuous Fiber Reinforced Titanium Matrix Composites by :
Download or read book Fatigue Damage Growth Mechanisms in Continuous Fiber Reinforced Titanium Matrix Composites written by and published by . This book was released on 1990 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of Fatigue Damage in a Metal Matrix Composite (SCS-6/ TI-15-3) at Elevated Temperature by :
Download or read book Characterization of Fatigue Damage in a Metal Matrix Composite (SCS-6/ TI-15-3) at Elevated Temperature written by and published by . This book was released on 1993 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fatigue characteristics of a unidirectional titanium based metal matrix composite site (MMC) were investigated at elevated temperature (427 deg C). A hybrid strain controlled loading made was used to subject the 0 deg and 90 deg laminas to fatigue. Along with the fatigue tests, microscopy and analytical modeling were also conducted. This combination of activities led to defining the initiation and progression of damage and deformation in the MMC. When loading was parallel to the fiber direction, the fatigue behavior was initially dominated by creep deformation of the matrix. Then, depending on the maximum strain, specimen failure was the result either fiber fractures or matrix cracking. In contrast, when loading was perpendicular to the fiber direction, the fatigue response was first dominated by the initiation of fiber-matrix interface damage. Then, if the maximum strain was above .35%, the dominant damage mechanism was matrix cracking. Below this strain level, the damage was a mixture of matrix microcracks and the progression of fiber-matrix interface damage. The analysis for this fiber orientation included unique methods to model the interface damage. This hybrid approach involving experiments, microscopy, and analytical modeling provided better understanding of the fatigue behavior of the MCC.
Book Synopsis Fatigue Crack Growth Mechanisms in Titanium Metal Matrix Composites by :
Download or read book Fatigue Crack Growth Mechanisms in Titanium Metal Matrix Composites written by and published by . This book was released on 1996 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report details studies carried out to identify the high temperature fatigue crack growth damage mechanisms in fiber-reinforced titanium metal matrix composites. The report consists of eight separate sections. In the first section, the fatigue and fatigue crack growth characteristics in neat laminates made of Timetal 21S were studied in relation to both temperature and loading frequency effects. The second section deals with the evolution of the thermal residual stresses in the composite when cooling from consolidation temperature or subjecting the composite to thermal cycles. A new mechanical simulation method capable of measuring the induced residual stress on real time basis has been developed in this study. The third section extends this issue to the time-dependent internal stress and strain states of MMCs under the thermomechanical loading conditions. Here, a new micromechanical model employing the four-phase concentric cylinder configuration has been proposed. Based on this model, the time-dependent behavior of continuous fiber reinforced metal matrix composites. It has been evaluated. These results are presented in the fourth section. The fifth, sixth and seventh sections of this report describe the influence of temperature and loading frequency on the crack growth process and suggest a fatigue-creep interactive mechanism acting at the crack tip during high temperature loadings. The last section of the report deals with the determination of the stress evolution in bridging fibers during the fatigue crack growth in SM 1240/Timetal-21S composite using the finite element method. Several parameters affecting this evolution were considered; namely, the process-induced residual stress, the creep characteristics of the matrix layer surrounding the fiber, the test temperature and the loading frequency.
Book Synopsis Constitutive Modeling and Finite Element Analysis of Fatigue - Damage in Metal Matrix Composites by :
Download or read book Constitutive Modeling and Finite Element Analysis of Fatigue - Damage in Metal Matrix Composites written by and published by . This book was released on 1996 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: A micromechanical consistent and systematic theory is developed for the analysis of damage mechanisms in metal matrix composites. A coupled incremental damage and plasticity theory of metal matrix composites is introduced here. This allows damage to be path dependent either on the stress history or the thermodynamic force conjugate to damage. This is achieved through the use of incremental damage tensors. The model involves both overall and local approaches to characterize damage in these material due to cyclic and monotonic loads. Expressions are derived here for the elasto-plastic stress and strain concentration tensors for fibrous metal matrix composite materials in the damaged configurations. A finite element analysis is used for quantifying each type of damage and predicting the failure loads of dog-bone shaped specimen and center-cracked laminate metal matrix composite plates. The development of damage zones and the stress-strain response are shown for two types of laminated layups.
Book Synopsis Introduction to Fatigue in Metals and Composites by : R.L. Carlson
Download or read book Introduction to Fatigue in Metals and Composites written by R.L. Carlson and published by Springer Science & Business Media. This book was released on 1995-11-30 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Introduction to Fatigue in Metals and Composites provides a balanced treatment of the phenomenon of fatigue in metals, nonmetals and composites with polymeric, metallic and ceramic matrices. The applicability of the safe life philosophy of design is examined for each of the materials. Attention is also focused on the stable crack growth phase of fatigue and differences in the operative mechanisms for the various classes of materials are considered. The impacts of these differences on the development of damage tolerance strategies are examined. Among topics discussed are; variable amplitude loading with tensile and compressive overload; closure obstruction; bridging mechanisms; mixed mode states; small cracks; delamination mechanisms and environmental conditions. The arrangement and presentation of the topics are such that An Introduction to Fatigue in Metals and Composites can serve as a course text for mechanical, civil, aeronautical and astronautical engineering and material science courses as well as a reference for engineers who are concerned with fatigue testing and aircraft, automobile and engine design.
Book Synopsis Thermomechanical fatigue behavior of materials by : Michael J. Verrilli
Download or read book Thermomechanical fatigue behavior of materials written by Michael J. Verrilli and published by ASTM International. This book was released on 1996 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Fatigue Damage Mechanisms in a Metal Matrix Composite Under Elevated Temperature by :
Download or read book Investigation of Fatigue Damage Mechanisms in a Metal Matrix Composite Under Elevated Temperature written by and published by . This book was released on 1990 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study investigated the fatigue damage initiation and progression in SCS-6/Ti-15-3 under an environment of fatigue loading at isothermal temperature. This program included two parts. First, an 808 Ultimate Tensile Strength system was set up to accommodate testing at two frequencies of 2.0 and 0.0208 cps at a constant temperature of 427 deg C. Second, at intervals during the load cycle process, the test specimens were characterized by establishing damage parameters based on changing modulus of elasticity, average strain, strain range, and ultimate tensile strength. Damage progression was documented in the form of failure of the fiber-matrix interface, matrix cracking, fiber breaking, and debonding of the fibers. Crack initiation locations and growth patterns were peculiar to specific test conditions of frequency and stress level. Also, analysis of the fatigued specimens and test data revealed matrix failure mechanisms ranging from ductile failure to cleavage fracture. The results of this study clearly show that temperature, frequency as well as stress levels are important design considerations for this composite in fatigue loading applications.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fracture Analysis of Fatigue Damage Mechanisms in Fiber Reinforced Composite Materials Using Scanning Electron Microscopy by : R. S. Williams
Download or read book Fracture Analysis of Fatigue Damage Mechanisms in Fiber Reinforced Composite Materials Using Scanning Electron Microscopy written by R. S. Williams and published by . This book was released on 1974 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: A variety of experimental and analytical methods have been used in attempting to characterize the fatigue damage processes in fiber reinforced composite materials. There has, however, been a distinct lack of SEM fractography applied to this area. In this report, composite SEM fractographs (approx. 70 - 80x) of two composite material systems (boron/epoxy and boron/aluminum) having the same fibers, layup and geometry, but drastically different matrix materials, are presented and discussed in detail. Both high and low frequency strain controlled fatigue tests and static test fractures are examined. Distinct differences between static and fatigue damage, and high and low frequency fatigue damage were observed. These various damage modes are detailed and summarized in several tables. A physical model describing the fracture process in these materials is presented by means of a flow chart. This model considers the cases of: static or fatigue loading, high or low cycling frequency, and weak or strong interface behavior.
Book Synopsis Fatigue of Composite Materials by : R. Talreja
Download or read book Fatigue of Composite Materials written by R. Talreja and published by CRC Press. This book was released on 1987 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue in Composites provides extensive contemporary research on fatigue from internationally recognized researchers. Part I introduces the concept, delivering a historical review of the fatigue behavior of fibre-reinforced plastics and illustrating fatigue test methods and fatigue under multiaxial stress systems. Part II reviews current research on micromechanical aspects, emphasizing long-term behavior, interface performance, delamination and damage accumulation. Part III covers the analysis and testing of fatigue behavior. Part IV details physical , micromechanical, computational, statistical, and life-prediction models for constant and variable stress. The final sections offer an overview of the wide range of composite fatigue-related problems experienced by engineers.
Book Synopsis Fatigue Damage Mechanisms of a Continuous Silicon Carbide (SiC) Fiber Reinforced Titanium Matrix Composite by : Ochang Jin
Download or read book Fatigue Damage Mechanisms of a Continuous Silicon Carbide (SiC) Fiber Reinforced Titanium Matrix Composite written by Ochang Jin and published by . This book was released on 1998 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aspects of High Temperature Damage in Fiber Reinforced Titanium Metal Matrix Composites by :
Download or read book Aspects of High Temperature Damage in Fiber Reinforced Titanium Metal Matrix Composites written by and published by . This book was released on 1993 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aspects associated with high temperature damage in fiber reinforced Metal Matrix Composites were investigated and are presented in this report in the form of five separate sections. In the first section, the fatigue and fatigue crack growth characteristics in neat laminates made of Timetal 21S were studied in relation to both temperature and loading frequency effects. The second section deals with the evolution of the thermal residual stresses in the composite when cooling from consolidation temperature or subjecting the composite to then-nal cycles. A new mechanical simulation method capable of measuring the induced residual stress on real; time basis has been developed in this study. The third section extends this issue to the time-dependent internal stress and strain states of MMCs under the thermomechanical loading conditions. Here, a new micromechanical model employing the four-phase concentric cylinder configuration has been proposed. Based on this model, the time-dependent behavior of continuous fiber reinforced metal matrix composites has been evaluated for the SCS-6/Timetal 21S composite. These results are presented in the fourth section. The last section of this report deals with the high temperature fatigue crack growth characteristics of the continuous fiber reinforced titanium metal matrix composite sigma l240/Timetal 12IS. The time- dependent features of the crack growth was examined in relation to the variation of both testing temperature and loading frequency. the principal damage mechanism of this composite under the load condition employed was identified to be the crack bridging and fiber/matrix debonding confined to regions near the crack surfaces ... Bridging, Fiber pullout length, Viscoplasticity, Composite interface.
Book Synopsis Fatigue Testing and Damage Development in Continuous Fiber Reinforced Metal Matrix Composites by : W. S. Johnson
Download or read book Fatigue Testing and Damage Development in Continuous Fiber Reinforced Metal Matrix Composites written by W. S. Johnson and published by . This book was released on 1988 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Metal Matrix Composites by : W. Steven Johnson
Download or read book Metal Matrix Composites written by W. Steven Johnson and published by ASTM International. This book was released on 1989 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fourteen peer-reviewed papers on testing techniques, analysis approaches, and descriptions of various failure processes. From the Symposium on [title] held at Sparks, NV, April 1988. Annotation copyright Book News, Inc. Portland, Or.
