The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform
Yingdong Song - One of the best experts on this subject based on the ideXlab platform.
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Prediction of strength and constitutive response of SiC/SiC composites considering Fiber Failure
Composites Part B: Engineering, 2019Co-Authors: Zhang Sheng, Xiguang Gao, Han Xiao, Duan Hao, Yingdong SongAbstract:Abstract A constitutive model of SiC/SiC composites is developed which considers Fiber Failure and broken Fibers’ load carrying capability. To obtain the in situ properties of SiC Fibers, tensile tests are performed on the heat-treated Fibers. A more universal Fiber strength model is developed to describe the strength distribution of SiC Fibers. In the constitutive model of SiC/SiC composites, the stress distribution of broken Fibers is analyzed. To validate the in situ Fiber strength distribution and the constitutive model, a tensile test is performed on SiC/SiC minicomposites. The predicted strength and stress-strain response of SiC/SiC minicomposites are in good agreement with the experimental results. The numerical calculations show that Fiber Failure nearly has no effect on the nonlinearity of SiC/SiC composites although the strength of composites will increase to infinity without Fiber Failure, and that the strength of the composites will decrease greatly if broken Fibers do not carry the load.
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Influence of Fiber Failure on fatigue hysteresis loops of ceramic matrix composites
Journal of Reinforced Plastics and Composites, 2010Co-Authors: Yingdong SongAbstract:An analytical methodology has been developed to investigate the influence of Fiber Failure on fatigue hysteresis loops of ceramic matrix composites in this article. During fatigue loading, matrix cracking, interface debonding and Fiber Failure occur upon first loading to the fatigue maximum stress. Matrix cracking space and interface debonding length are obtained by matrix statistical cracking model and fracture mechanics interface debonding criterion. Based on the assumption of global load-sharing criterion for the load distribution between the unbroken and broken Fibers, an approach to determine Fiber Failure probability during fatigue loading for the degradation of interface shear stress and Fiber strength is developed in this analysis. Upon unloading and subsequent reloading, stress-strain hysteresis loops develop as Fiber sliding relative to matrix in the interface debonded region. The unloading interface counter slip length and reloading new slip length are obtained by the fracture mechanics interface debonding criterion. The effects of characteristic Fiber strength, Fiber Weibull modulus, and fatigue maximum stress on Fiber Failure during fatigue loading, and then on the shape, location, and area of the fatigue hysteresis loops are investigated. The fatigue hysteresis loops of three different ceramic composites corresponding to different cycles are predicted and agree well with the experimental data.
Zhang Sheng - One of the best experts on this subject based on the ideXlab platform.
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Prediction of strength and constitutive response of SiC/SiC composites considering Fiber Failure
Composites Part B: Engineering, 2019Co-Authors: Zhang Sheng, Xiguang Gao, Han Xiao, Duan Hao, Yingdong SongAbstract:Abstract A constitutive model of SiC/SiC composites is developed which considers Fiber Failure and broken Fibers’ load carrying capability. To obtain the in situ properties of SiC Fibers, tensile tests are performed on the heat-treated Fibers. A more universal Fiber strength model is developed to describe the strength distribution of SiC Fibers. In the constitutive model of SiC/SiC composites, the stress distribution of broken Fibers is analyzed. To validate the in situ Fiber strength distribution and the constitutive model, a tensile test is performed on SiC/SiC minicomposites. The predicted strength and stress-strain response of SiC/SiC minicomposites are in good agreement with the experimental results. The numerical calculations show that Fiber Failure nearly has no effect on the nonlinearity of SiC/SiC composites although the strength of composites will increase to infinity without Fiber Failure, and that the strength of the composites will decrease greatly if broken Fibers do not carry the load.
Xiguang Gao - One of the best experts on this subject based on the ideXlab platform.
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Prediction of strength and constitutive response of SiC/SiC composites considering Fiber Failure
Composites Part B: Engineering, 2019Co-Authors: Zhang Sheng, Xiguang Gao, Han Xiao, Duan Hao, Yingdong SongAbstract:Abstract A constitutive model of SiC/SiC composites is developed which considers Fiber Failure and broken Fibers’ load carrying capability. To obtain the in situ properties of SiC Fibers, tensile tests are performed on the heat-treated Fibers. A more universal Fiber strength model is developed to describe the strength distribution of SiC Fibers. In the constitutive model of SiC/SiC composites, the stress distribution of broken Fibers is analyzed. To validate the in situ Fiber strength distribution and the constitutive model, a tensile test is performed on SiC/SiC minicomposites. The predicted strength and stress-strain response of SiC/SiC minicomposites are in good agreement with the experimental results. The numerical calculations show that Fiber Failure nearly has no effect on the nonlinearity of SiC/SiC composites although the strength of composites will increase to infinity without Fiber Failure, and that the strength of the composites will decrease greatly if broken Fibers do not carry the load.
Han Xiao - One of the best experts on this subject based on the ideXlab platform.
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Prediction of strength and constitutive response of SiC/SiC composites considering Fiber Failure
Composites Part B: Engineering, 2019Co-Authors: Zhang Sheng, Xiguang Gao, Han Xiao, Duan Hao, Yingdong SongAbstract:Abstract A constitutive model of SiC/SiC composites is developed which considers Fiber Failure and broken Fibers’ load carrying capability. To obtain the in situ properties of SiC Fibers, tensile tests are performed on the heat-treated Fibers. A more universal Fiber strength model is developed to describe the strength distribution of SiC Fibers. In the constitutive model of SiC/SiC composites, the stress distribution of broken Fibers is analyzed. To validate the in situ Fiber strength distribution and the constitutive model, a tensile test is performed on SiC/SiC minicomposites. The predicted strength and stress-strain response of SiC/SiC minicomposites are in good agreement with the experimental results. The numerical calculations show that Fiber Failure nearly has no effect on the nonlinearity of SiC/SiC composites although the strength of composites will increase to infinity without Fiber Failure, and that the strength of the composites will decrease greatly if broken Fibers do not carry the load.
Duan Hao - One of the best experts on this subject based on the ideXlab platform.
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Prediction of strength and constitutive response of SiC/SiC composites considering Fiber Failure
Composites Part B: Engineering, 2019Co-Authors: Zhang Sheng, Xiguang Gao, Han Xiao, Duan Hao, Yingdong SongAbstract:Abstract A constitutive model of SiC/SiC composites is developed which considers Fiber Failure and broken Fibers’ load carrying capability. To obtain the in situ properties of SiC Fibers, tensile tests are performed on the heat-treated Fibers. A more universal Fiber strength model is developed to describe the strength distribution of SiC Fibers. In the constitutive model of SiC/SiC composites, the stress distribution of broken Fibers is analyzed. To validate the in situ Fiber strength distribution and the constitutive model, a tensile test is performed on SiC/SiC minicomposites. The predicted strength and stress-strain response of SiC/SiC minicomposites are in good agreement with the experimental results. The numerical calculations show that Fiber Failure nearly has no effect on the nonlinearity of SiC/SiC composites although the strength of composites will increase to infinity without Fiber Failure, and that the strength of the composites will decrease greatly if broken Fibers do not carry the load.