The Experts below are selected from a list of 288 Experts worldwide ranked by ideXlab platform
Liming Chen - One of the best experts on this subject based on the ideXlab platform.
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Temperature dependent Longitudinal Tensile Strength model of unidirectional fiber reinforced polymer composites considering the effect of matrix plasticity
Extreme Mechanics Letters, 2020Co-Authors: Shifeng Zheng, Ziyuan Zhao, Mengqing Yang, Dong Pan, Liming ChenAbstract:Abstract The unidirectional fiber reinforced polymer (FRP) composites have captured intensive attention of scholars owing to their superior Longitudinal Tensile properties. In this work, a temperature dependent Longitudinal Tensile Strength model for unidirectional FRP composites was established based on the Force–Heat Equivalence Energy Density Principle and the bridging model. The model considers the evolution of constituents’ properties and residual thermal stress with temperature. Especially, the effect of polymer matrix plasticity at different temperatures on the temperature dependent Tensile Strength of unidirectional FRP composites is considered. Compared with our previous model and the Curtin’s model, the model can more conveniently predict the temperature dependent Tensile Strength, and the predictions obtain a better agreement with the available experimental results. Moreover, we conducted the influencing factors analysis for unidirectional FRP composites. This work provides a feasible and convenient method to predict the temperature dependent Tensile Strength of unidirectional FRP composites, and could offer beneficial insights for the material evaluation and optimization.
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Theoretical model for the temperature dependent Longitudinal Tensile Strength of unidirectional fiber reinforced polymer composites
Composites Part B: Engineering, 2019Co-Authors: Yong Tao, Jiaxing Shao, Yong Deng, Haibo Kou, Xuyao Zhang, Liming ChenAbstract:Abstract In this paper, a theoretical model for predicting the Longitudinal Tensile Strength of unidirectional fiber reinforced polymer (FRP) composites at different temperatures is established. This model considers the combined effects of temperature, matrix Strength, fiber size, fiber volume fraction, and the fiber Strength scatter on the Tensile Strength of unidirectional FRP composites. The model is verified by comparison with available experimental data of carbon fiber and glass fiber reinforced polymer composites at different temperatures. The agreement between the theoretical model and experimental results is found to be satisfactory, which indicates the applicability and reasonability of the model. Particularly, the model has advantages compared with Curtin's model, Gao-Reifsnider's (G-R's) model and Subramanian-Reifsnider's (S-R's) model from the aspects of accuracy and convenience. Furthermore, the influencing factor analysis for unidirectional FRP composites regarding their temperature dependent Tensile Strength was systematically conducted, which provide better understanding on the Strength control mechanism and material design.
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Temperature-dependent Longitudinal Tensile Strength model for short-fiber-reinforced polymer composites considering fiber orientation and fiber length distribution
Journal of Materials Science, 2018Co-Authors: Yong Deng, Yong Tao, Jiaxing Shao, Haibo Kou, Xuyao Zhang, Xianhe Zhang, Liming ChenAbstract:In this study, a temperature-dependent Longitudinal Tensile Strength model for short-fiber-reinforced polymer composites (SFRPCs) is established based on the sensitivities of thermal-physical properties of polymer materials to temperature and our previous work. The effects of temperature, fiber orientation distribution, fiber length distribution and residual thermal stress are considered in this model. The theoretical model is verified by comparison with Tensile Strength of glass SFRPCs at different temperatures. Good agreement between the model predictions and experimental results is obtained, which indicates the reasonability of the proposed models. Furthermore, the comparisons between the present models and the classical models are discussed, and the influencing factors analysis for SFRPCs is also conducted in detail. This study can not only provide a potential convenient means for predicting the temperature-dependent Tensile Strength of SFRPCs, but also offer useful suggestions for the material evaluation, Strengthening and design.
Yong Tao - One of the best experts on this subject based on the ideXlab platform.
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Theoretical model for the temperature dependent Longitudinal Tensile Strength of unidirectional fiber reinforced polymer composites
Composites Part B: Engineering, 2019Co-Authors: Yong Tao, Jiaxing Shao, Yong Deng, Haibo Kou, Xuyao Zhang, Liming ChenAbstract:Abstract In this paper, a theoretical model for predicting the Longitudinal Tensile Strength of unidirectional fiber reinforced polymer (FRP) composites at different temperatures is established. This model considers the combined effects of temperature, matrix Strength, fiber size, fiber volume fraction, and the fiber Strength scatter on the Tensile Strength of unidirectional FRP composites. The model is verified by comparison with available experimental data of carbon fiber and glass fiber reinforced polymer composites at different temperatures. The agreement between the theoretical model and experimental results is found to be satisfactory, which indicates the applicability and reasonability of the model. Particularly, the model has advantages compared with Curtin's model, Gao-Reifsnider's (G-R's) model and Subramanian-Reifsnider's (S-R's) model from the aspects of accuracy and convenience. Furthermore, the influencing factor analysis for unidirectional FRP composites regarding their temperature dependent Tensile Strength was systematically conducted, which provide better understanding on the Strength control mechanism and material design.
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Temperature-dependent Longitudinal Tensile Strength model for short-fiber-reinforced polymer composites considering fiber orientation and fiber length distribution
Journal of Materials Science, 2018Co-Authors: Yong Deng, Yong Tao, Jiaxing Shao, Haibo Kou, Xuyao Zhang, Xianhe Zhang, Liming ChenAbstract:In this study, a temperature-dependent Longitudinal Tensile Strength model for short-fiber-reinforced polymer composites (SFRPCs) is established based on the sensitivities of thermal-physical properties of polymer materials to temperature and our previous work. The effects of temperature, fiber orientation distribution, fiber length distribution and residual thermal stress are considered in this model. The theoretical model is verified by comparison with Tensile Strength of glass SFRPCs at different temperatures. Good agreement between the model predictions and experimental results is obtained, which indicates the reasonability of the proposed models. Furthermore, the comparisons between the present models and the classical models are discussed, and the influencing factors analysis for SFRPCs is also conducted in detail. This study can not only provide a potential convenient means for predicting the temperature-dependent Tensile Strength of SFRPCs, but also offer useful suggestions for the material evaluation, Strengthening and design.
Ignace Verpoest - One of the best experts on this subject based on the ideXlab platform.
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the influence of the stitching pattern on the internal geometry quasi static and fatigue mechanical properties of glass fibre non crimp fabric composites
Composites Part A-applied Science and Manufacturing, 2014Co-Authors: Katleen Vallons, Stepan Vladimirovitch Lomov, Georg Adolphs, Paul Lucas, Ignace VerpoestAbstract:Abstract This paper discusses the experimental results of a study comparing several aspects of the mechanical behaviour of two quasi-unidirectional non-crimp fabric composites based on non-crimp fabrics that differ only in stitching pattern. A NEW stitching pattern was compared to an industry common type (ICT). The properties studied include fabric and laminate thickness, fibre volume fraction, static Tensile modulus and Strength in Longitudinal and transverse direction, high-speed Tensile Strength and tension–tension fatigue life. Statistically significant differences were observed for fabric and composite thickness, which was found to be higher for the ICT type composite. A higher fibre volume fraction was observed for the NEW stitching pattern material, as well as a higher Longitudinal Tensile Strength at high and low speeds and a slightly higher fatigue life.
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Finite element modelling of damage development during Longitudinal Tensile loading of coated fibre composites
Composites Part A-applied Science and Manufacturing, 1998Co-Authors: E Jacobs, Ignace VerpoestAbstract:Abstract In this paper, results of finite element calculations of the stress state near a broken coated fibre in unidirectional carbon fibre–epoxy matrix composites are presented. For this aim, a simplified two-dimensional axisymmetric model has been developed. A part of the model contains an equivalent composite medium and, to this end, elastic constants of a coated fibre composite were separately calculated and used as input data in this analysis. The influences of coating thickness, coating stiffness and assumed crack pattern on the stresses in the broken fibre and in adjacent, unbroken fibres are evaluated, and their possible impact on composite Longitudinal Tensile Strength is discussed
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Influence of carbon fibre surface treatment on composite UD Strength
Composites, 1994Co-Authors: Jan Ivens, Martine Wevers, Ignace VerpoestAbstract:Abstract Carbon fibre surface treatments can affect the composite properties in the fibre direction. Two effects play an important role in the Longitudinal Tensile Strength. First, the carbon fibre surface treatment has some influence on the individual fibre Strength. Second, an improved interface Strength leads to better load transfer in the composite. Using an elastic-slip model, it is shown that the ineffective length increases dramatically with decreasing degree of surface treatment. It is also shown that, as the debonded length of a broken fibre decreases, the strain in the matrix becomes very high, leading to matrix cracking and additional stress concentrations on the neighbouring fibres. This leads to a maximum Strength at intermediate treatment levels. This conclusion is supported by UD Tensile tests on [0]9 carbon/epoxy laminates.
Yong Deng - One of the best experts on this subject based on the ideXlab platform.
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Theoretical model for the temperature dependent Longitudinal Tensile Strength of unidirectional fiber reinforced polymer composites
Composites Part B: Engineering, 2019Co-Authors: Yong Tao, Jiaxing Shao, Yong Deng, Haibo Kou, Xuyao Zhang, Liming ChenAbstract:Abstract In this paper, a theoretical model for predicting the Longitudinal Tensile Strength of unidirectional fiber reinforced polymer (FRP) composites at different temperatures is established. This model considers the combined effects of temperature, matrix Strength, fiber size, fiber volume fraction, and the fiber Strength scatter on the Tensile Strength of unidirectional FRP composites. The model is verified by comparison with available experimental data of carbon fiber and glass fiber reinforced polymer composites at different temperatures. The agreement between the theoretical model and experimental results is found to be satisfactory, which indicates the applicability and reasonability of the model. Particularly, the model has advantages compared with Curtin's model, Gao-Reifsnider's (G-R's) model and Subramanian-Reifsnider's (S-R's) model from the aspects of accuracy and convenience. Furthermore, the influencing factor analysis for unidirectional FRP composites regarding their temperature dependent Tensile Strength was systematically conducted, which provide better understanding on the Strength control mechanism and material design.
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Temperature-dependent Longitudinal Tensile Strength model for short-fiber-reinforced polymer composites considering fiber orientation and fiber length distribution
Journal of Materials Science, 2018Co-Authors: Yong Deng, Yong Tao, Jiaxing Shao, Haibo Kou, Xuyao Zhang, Xianhe Zhang, Liming ChenAbstract:In this study, a temperature-dependent Longitudinal Tensile Strength model for short-fiber-reinforced polymer composites (SFRPCs) is established based on the sensitivities of thermal-physical properties of polymer materials to temperature and our previous work. The effects of temperature, fiber orientation distribution, fiber length distribution and residual thermal stress are considered in this model. The theoretical model is verified by comparison with Tensile Strength of glass SFRPCs at different temperatures. Good agreement between the model predictions and experimental results is obtained, which indicates the reasonability of the proposed models. Furthermore, the comparisons between the present models and the classical models are discussed, and the influencing factors analysis for SFRPCs is also conducted in detail. This study can not only provide a potential convenient means for predicting the temperature-dependent Tensile Strength of SFRPCs, but also offer useful suggestions for the material evaluation, Strengthening and design.
Xuyao Zhang - One of the best experts on this subject based on the ideXlab platform.
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Theoretical model for the temperature dependent Longitudinal Tensile Strength of unidirectional fiber reinforced polymer composites
Composites Part B: Engineering, 2019Co-Authors: Yong Tao, Jiaxing Shao, Yong Deng, Haibo Kou, Xuyao Zhang, Liming ChenAbstract:Abstract In this paper, a theoretical model for predicting the Longitudinal Tensile Strength of unidirectional fiber reinforced polymer (FRP) composites at different temperatures is established. This model considers the combined effects of temperature, matrix Strength, fiber size, fiber volume fraction, and the fiber Strength scatter on the Tensile Strength of unidirectional FRP composites. The model is verified by comparison with available experimental data of carbon fiber and glass fiber reinforced polymer composites at different temperatures. The agreement between the theoretical model and experimental results is found to be satisfactory, which indicates the applicability and reasonability of the model. Particularly, the model has advantages compared with Curtin's model, Gao-Reifsnider's (G-R's) model and Subramanian-Reifsnider's (S-R's) model from the aspects of accuracy and convenience. Furthermore, the influencing factor analysis for unidirectional FRP composites regarding their temperature dependent Tensile Strength was systematically conducted, which provide better understanding on the Strength control mechanism and material design.
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Temperature-dependent Longitudinal Tensile Strength model for short-fiber-reinforced polymer composites considering fiber orientation and fiber length distribution
Journal of Materials Science, 2018Co-Authors: Yong Deng, Yong Tao, Jiaxing Shao, Haibo Kou, Xuyao Zhang, Xianhe Zhang, Liming ChenAbstract:In this study, a temperature-dependent Longitudinal Tensile Strength model for short-fiber-reinforced polymer composites (SFRPCs) is established based on the sensitivities of thermal-physical properties of polymer materials to temperature and our previous work. The effects of temperature, fiber orientation distribution, fiber length distribution and residual thermal stress are considered in this model. The theoretical model is verified by comparison with Tensile Strength of glass SFRPCs at different temperatures. Good agreement between the model predictions and experimental results is obtained, which indicates the reasonability of the proposed models. Furthermore, the comparisons between the present models and the classical models are discussed, and the influencing factors analysis for SFRPCs is also conducted in detail. This study can not only provide a potential convenient means for predicting the temperature-dependent Tensile Strength of SFRPCs, but also offer useful suggestions for the material evaluation, Strengthening and design.
