The Experts below are selected from a list of 3174 Experts worldwide ranked by ideXlab platform
Ever J. Barbero - One of the best experts on this subject based on the ideXlab platform.
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beyond plain Weave Fabrics ii mechanical properties
Composite Structures, 2011Co-Authors: Adi Adumitroaie, Ever J. BarberoAbstract:Abstract A new formulation for mechanical analysis of 2D biaxial orthogonal woven fabric reinforced composite materials is proposed, as required by the wide variety of fabric types offered by the textile industry. Twill and satin Weaves are defined as generic families of weaving patterns based on a general 3D geometrical model of the fabric architecture presented in Part I . Thermo-elastic material constants, progressive failure behavior, and strength are evaluated. The nonlinear stress–strain response and the strain to failure are predicted. Comparisons with available experimental data is presented. The present formulation is amenable for computer implementation in both analytical and numerical models.
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beyond plain Weave Fabrics i geometrical model
Composite Structures, 2011Co-Authors: Adi Adumitroaie, Ever J. BarberoAbstract:Abstract In response to the large variety of weaving styles offered by the textile industry, a new general approach for the geometrical modeling of 2D biaxial orthogonal woven fabric reinforcements for composite materials is proposed here. New geometrical parameters are introduced in order to describe general families of twill and satin woven patterns, and a new classification of woven Fabrics is proposed based on these parameters. Generation of the 3D internal geometry of the woven fabric families is achieved based on new geometrical functions that consider the actual configuration of the composite material in all its complexity. The proposed geometrical model is intended as the foundation for further analytical or numerical modeling of the mechanical properties of the composite materials reinforced with these Fabrics.
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Finite element modeling of plain Weave Fabrics from photomicrograph measurements
Composite Structures, 2006Co-Authors: Ever J. Barbero, J. Trovillion, Joan A. Mayugo, K.k. SikkilAbstract:The aim of this work is to develop accurate finite element models of plain Weave Fabrics to determine their mechanical properties. This work also aims at developing a method for describing the internal geometry from actual measurements of tow geometry made on photomicrographs of sectioned laminates. The geometric models needed for finite element discretization of the plain Weave Fabrics are developed for a variety of plain-Weave reinforced laminates for which experimental data is available in the literature. These include single lamina composites from three sources, as well as laminates in iso-phase and out-of-phase configurations. The procedures to determine all the elastic moduli using iso-strain, iso-stress, and classical lamination theory are presented. Comparisons with experimental data and with predictions using the periodic microstructure model are provided in order to support the validity of the proposed models.
Patrick Perre - One of the best experts on this subject based on the ideXlab platform.
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comparison between sorption isotherms of non ironed and steam ironed plain Weave Fabrics
Applied Thermal Engineering, 2017Co-Authors: N Bhouri, A Houngan, S Bennasrallah, Patrick PerreAbstract:Abstract The aim of this study is to control if the steam ironing effect applied on cotton clothing can persist in different climatic conditions. For this purpose, the effect of steam ironing process on the sorption isotherms of plain Weave Fabrics made of cotton was investigated. An experimental device conceived around a magnetic suspension balance was used to regulate temperature at two levels (25 °C and 35 °C). Using the same proportions of mixed air, relative humidities can reach fixed values between 3% and 97%. Two successive cycles of continuous adsorption/desorption water vapor were used. The sorption isotherms of the ironed and non-ironed Fabrics are compared. They define three sorption zones depending on the nature of links between structure and water vapor. The results show that the adsorption isotherm of the ironed Fabrics is lower than the non-ironed one during the initial two zones of the sigmoid. Then, they are superposed in the last sector of the adsorption isotherm and during the entire desorption phase. Therefore, the ironing can reduce the sorption capacity of cotton at low and moderate relative humidities. A second adsorption/desorption cycle is performed on the same samples to prove that the ironing effect is completely cancelled.
Stepan Vladimirovitch Lomov - One of the best experts on this subject based on the ideXlab platform.
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coupled meso macro simulation of woven fabric local deformation during draping
Composites Part A-applied Science and Manufacturing, 2019Co-Authors: Akira Iwata, Philippe Boisse, Takuya Inoue, Naim Naouar, Stepan Vladimirovitch LomovAbstract:Abstract The prediction of yarn buckling and distortions require detailed modelling of the fabric and yarns deformations on the meso-level (level of the interlacing structure). In the current research, computationally viable meso-level simulation is achieved by coupling continuous macro draping simulation with a local meso-modeling in the location where the defects are expected to occur. The macro-simulation uses a membrane-shell continuous model of the fabric. A hyperelastic constitutive model for the yarns (Charmetant – Boisse) is used in the meso-modelling. The model parameters are identified and validated in independent tension, shear, compaction and bending tests of the yarn and the fabric. The simulation reproduces local yarn slippage and buckling, e.g., the yarn distortion on the 3D mould corner. The simulations are compared with the local fabric distortions observed during draping experiments for two carbon plain Weave Fabrics (12K carbon-fibre tows and with spread tows) on a hemispherical and on a box-shaped moulds.
Dongxing Zhang - One of the best experts on this subject based on the ideXlab platform.
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The Optimization of Process Parameters and Characterization of High-Performance CF/PEEK Composites Prepared by Flexible CF/PEEK Plain Weave Fabrics
Polymers, 2018Co-Authors: Chunrui Lu, Hanxiong Lv, Xue Lu, Ting Zheng, Nuo Xu, Lin Xiao, Xin Zhang, Dongxing ZhangAbstract:Continuous carbon fiber (CF)-reinforced poly (ether ether ketone) (PEEK) composites have excellent mechanical properties, but their processing techniques are limited. Therefore, we promoted a braiding method based on the hybrid fiber method by hot-compacting CF/PEEK plain Weave Fabrics to solve the problem of difficult wetting between CF and PEEK. Four parameters—melting temperature, molding pressure, crystallization temperature and the resin contents—were investigated for optimized fabrication. After studying the melting range, thermal stability and the contact angle of PEEK under different temperatures, the melting temperature was set at 370 °C. An ultra-depth-of-field 3D microscope was adopted to investigate the effects of molding pressure in the melting stage. The tensile strength or modulus along and perpendicular to the carbon fiber direction and crystallinity under different crystallization temperatures were analyzed. As a result, the sample crystalized at 300 °C showed an excellent tensile properties and crystallinity. The increased mass ratio of PEEK ranging from 50.45% to 59.07% allowed for much stronger interfacial strength; however, the higher resin content can lead to the dispersion of CFs, loss of resin and the formation of defects during processing. Finally, the optimal resin mass content was 59.07%, with a tensile strength of 738.36 ± 14.49 MPa and a flexural strength of 659.68 ± 57.53 MPa. This paper studied the optimized processing parameters to obtain better properties from CF/PEEK plain Weave Fabrics and to further broaden the specific applications of CF/PEEK composites, demonstrating a new direction for its fabrication.
Adi Adumitroaie - One of the best experts on this subject based on the ideXlab platform.
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beyond plain Weave Fabrics i geometrical model
Composite Structures, 2011Co-Authors: Adi Adumitroaie, Ever J. BarberoAbstract:Abstract In response to the large variety of weaving styles offered by the textile industry, a new general approach for the geometrical modeling of 2D biaxial orthogonal woven fabric reinforcements for composite materials is proposed here. New geometrical parameters are introduced in order to describe general families of twill and satin woven patterns, and a new classification of woven Fabrics is proposed based on these parameters. Generation of the 3D internal geometry of the woven fabric families is achieved based on new geometrical functions that consider the actual configuration of the composite material in all its complexity. The proposed geometrical model is intended as the foundation for further analytical or numerical modeling of the mechanical properties of the composite materials reinforced with these Fabrics.
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beyond plain Weave Fabrics ii mechanical properties
Composite Structures, 2011Co-Authors: Adi Adumitroaie, Ever J. BarberoAbstract:Abstract A new formulation for mechanical analysis of 2D biaxial orthogonal woven fabric reinforced composite materials is proposed, as required by the wide variety of fabric types offered by the textile industry. Twill and satin Weaves are defined as generic families of weaving patterns based on a general 3D geometrical model of the fabric architecture presented in Part I . Thermo-elastic material constants, progressive failure behavior, and strength are evaluated. The nonlinear stress–strain response and the strain to failure are predicted. Comparisons with available experimental data is presented. The present formulation is amenable for computer implementation in both analytical and numerical models.
