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Longitudinal Fatigue Response Of A Metal Matrix Composite Under Strain Controlled Mode At Elevated Temperature
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Book Synopsis Longitudinal Fatigue Response of a Metal Matrix Composite Under Strain Controlled Mode at Elevated Temperature by : S. Mall
Download or read book Longitudinal Fatigue Response of a Metal Matrix Composite Under Strain Controlled Mode at Elevated Temperature written by S. Mall and published by . This book was released on 1994 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fatigue characteristics of a unidirectional titanium-based metal matrix composite (MMC) (SCS-6/Ti-15-3) were investigated at elevated temperature (427°C). A hybrid strain controlled loading mode was employed for this purpose. This hybrid control mode did not allow the specimen to experience compressive stress in order to prevent any possible buckling effects. To fully understand the fatigue behavior of the MMC under this control mode, fatigue tests, microscopic evaluation, and micromechanical analysis were performed. Based on this combination of activities, the damage and deformation mechanisms were systematically identified. It was found that the fatigue behavior was initially dominated by creep deformation of the matrix. This was accompanied by plastic deformation in those specimens that were subjected to a maximum strain level of 0.55% or higher. Depending on the maximum strain level, the specimen failure was a result of either fiber fracture or matrix cracking. Using the combined approach involving experiments, microscopy, and analysis, the interrelationships among applied strain levels, fatigue life, damage mechanisms, and macroscopic response were established to characterize the longitudinal fatigue characteristics of the tested MMC.
Book Synopsis Fatigue Behavior of a Cross-ply Metal Matrix Composite at Elevated Temperature Under Strain Controlled Mode by : Leon B. Dennis (CAPT, USAF.)
Download or read book Fatigue Behavior of a Cross-ply Metal Matrix Composite at Elevated Temperature Under Strain Controlled Mode written by Leon B. Dennis (CAPT, USAF.) and published by . This book was released on 1994 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fatigue Behavior of a Cross-Ply Metal Matrix Composite at Elevated Temperature Under Strain Controlled Mode by :
Download or read book Fatigue Behavior of a Cross-Ply Metal Matrix Composite at Elevated Temperature Under Strain Controlled Mode written by and published by . This book was released on 1994 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research extends the existing knowledge of cross-ply metal matrix composites (MMC) to include fatigue behavior under strain-controlled fully reversed loading. This study investigated fatigue life, failure modes and damage mechanisms of the SCS-6/Ti-15-3, (O/9O)2s, MMC. The laminate was subjected to fully reversed fatigue at elevated temperature (427 deg C) at various strain levels. Stress, strain and modulus data were analyzed to characterize the macro-mechanical behavior of the composite. Microscopy and fractography were accomplished to identify and characterize the damage mechanisms at the microscopic level. Failure modes varied according to the maximum applied strain level showing either mixed mode (i.e. combination of both fiber and matrix dominated modes) or matrix dominated fatigue failures. As expected, higher strain loadings resulted in more ductility of the matrix at failure, evidenced by fracture surface features. For testing of the same composite laminate, the fatigue life under strain controlled mode slightly increased, compared to its load-controlled mode counterpart, using the effective strain range comparison basis. However, the respective fatigue life curves converged in the high cycle region, suggesting that the matrix dominated failure mode produces equivalent predicted fatigue lives for both control modes.
Book Synopsis Residual Strength After Fatigue of a Cross-Ply Metal Matrix Composite at Elevated Temperature by : Alvin Ruiz
Download or read book Residual Strength After Fatigue of a Cross-Ply Metal Matrix Composite at Elevated Temperature written by Alvin Ruiz and published by . This book was released on 1997-06-01 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was to investigate the residual strength of a cross-ply, SCS-6/Ti-15-3, metal matrix composite (MMC) at elevated temperature (427 deg C) when exposed to fatigue loading. Several specimens were subjected to a strain-controlled, fully reversed loading (R=-1), at various strain levels. The specimens were fatigued up to a portion of their life expectancy and then loaded to failure. Stress and strain data obtained during the test provided useful information for the macro-mechanical behavior of the material. It was determined that the residual strength was directly related to the amount of damage present in the matrix, meanwhile, the amount of matrix damage was dependent on the number of cycles and strain level the specimen had been exposed to. It was also observed that the residual strength under the strain controlled mode degraded more consistently than its counterpart under load controlled mode. This variation, however, may be due to the frequency and R-ratio differences between the two loading modes. The comparison of the residual strength degradation of the cross-ply vs. unidirectional laminates reflected a significant difference due to ply orientation. The unidirectional composite exhibited much less residual strength degradation due to the absence of the crack initiation action attributed to the 90 deg plies in the cross-ply.
Book Synopsis Stress/strain Ratio Effects on Fatigue Response of a SCS-6/Ti-15-3 Metal Matrix Composite at Elevated Temperature by : Sean C. Jackson
Download or read book Stress/strain Ratio Effects on Fatigue Response of a SCS-6/Ti-15-3 Metal Matrix Composite at Elevated Temperature written by Sean C. Jackson and published by . This book was released on 1995 with total page 224 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 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 Titanium Matrix Composites by : Shankar Mall
Download or read book Titanium Matrix Composites written by Shankar Mall and published by CRC Press. This book was released on 2020-01-29 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 review and summarise the advancements related to mechanical behavior and related mechanics issues of TMCs.
Book Synopsis Residual Strength After Fatigue of Unidirectional and Cross-Ply Metal Matrix Composites at Elevated Temperature by : Sen-Tzer Chiou
Download or read book Residual Strength After Fatigue of Unidirectional and Cross-Ply Metal Matrix Composites at Elevated Temperature written by Sen-Tzer Chiou and published by . This book was released on 1996-06-01 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study investigated the residual strength of the unidirectional and cross-ply laminates of SCS-6 / Ti-15-3, metal matrix composite at elevated temperature 427 deg C (800 deg F) after under tension-tension load controlled mode. For this purpose, several specimens were fatigued to various fractions of the fatigue life and then loaded monotonically to failure. The purpose of this study was to determine the effects of different levels of fatigue damage on the composite's strength. The unidirectional specimens were cycled at a 900 MPa maximum stress at a frequency of 10 Hz, while, the cross-ply specimens were tested at both 300 MPa and 450 MPa at 5 Hz and 10 Hz, respectively. The residual strength results for the three cases showed similar trends in that residual strength drop with cycles was small until near the end of the fatigue life. Both the unidirectional and cross-ply specimens demonstrated only a small drop of the residual strength with cycles until near the end of the fatigue life. (Author)
Book Synopsis Stress/strain Ratio Effects on Fatigue Response of a SCS-6/Ti-15-3 Metal Matrix Composite at Elevated Temperature by : Sean C. Jackson
Download or read book Stress/strain Ratio Effects on Fatigue Response of a SCS-6/Ti-15-3 Metal Matrix Composite at Elevated Temperature written by Sean C. Jackson and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Composite Materials by : Charles E. Bakis
Download or read book Composite Materials written by Charles E. Bakis and published by ASTM International. This book was released on 2003 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The 14th ASTM Symposium on Composite Materials: Testing and Design, was held March 11-12, 2002 in Pittsburgh, PA. The Testing and Design symposia, sponsored by Committee D30 on Composite Materials, have been scheduled on a roughly bi-yearly basis since 1969 to provide a forum for researchers and practitioners to meet and exchange their latest methods and findings related to the testing and design of composite materials and structures."
Book Synopsis Fatigue of Composite Materials by : J. R. Hancock
Download or read book Fatigue of Composite Materials written by J. R. Hancock and published by ASTM International. This book was released on 1975 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fatigue and Fracture at Elevated Temperatures by : Arvind Nagar
Download or read book Fatigue and Fracture at Elevated Temperatures written by Arvind Nagar and published by . This book was released on 1995 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermo-mechanical Fatigue Behavior of Materials by : Huseyin Sehitoglu
Download or read book Thermo-mechanical Fatigue Behavior of Materials written by Huseyin Sehitoglu and published by ASTM International. This book was released on 2000 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Frequency Effects on Fatigue Behavior of a Unidirectional Metal Matrix Composite at Elevated Temperature by : Robert N. Pittman
Download or read book Frequency Effects on Fatigue Behavior of a Unidirectional Metal Matrix Composite at Elevated Temperature written by Robert N. Pittman and published by . This book was released on 1995 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fatigue of Continuous Fiber Reinforced Metallic Materials by : W. Steven Johnson
Download or read book Fatigue of Continuous Fiber Reinforced Metallic Materials written by W. Steven Johnson and published by . This book was released on 1993 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of Unnotched SCS-6/Ti-15-3 Metal Matrix Composites at 650 C by :
Download or read book Characterization of Unnotched SCS-6/Ti-15-3 Metal Matrix Composites at 650 C written by and published by . This book was released on 1990 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
