The Experts below are selected from a list of 315 Experts worldwide ranked by ideXlab platform
E Hennes - One of the best experts on this subject based on the ideXlab platform.
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Mechanical properties of Zylon/epoxy composite
Composites Part B-engineering, 2002Co-Authors: Y.k Huang, P.h Frings, E HennesAbstract:Abstract The Zylon/epoxy composite is formed by wet-winding Zylon fibre, poly( p -phenylene-2,6-benzobisoxazole) or PBO, with the epoxy (Stycast 1266). The effects of pre-stress on the distribution and the filling factor of the fibre are studied. It is shown that a Zylon/epoxy composite with a uniform fibre distribution and a very high filling factor is achievable. The mechanical properties of the Zylon/epoxy composite at room temperature and 77 K are investigated by uni-axial tensile tests and transverse compression tests. The results indicate that the ultimate tensile strength (UTS) of the Zylon/epoxy composite is mainly determined by the fraction of the Zylon fibre. The UTS of the Zylon fibres in the composite is found to be larger than 4.3 GPa. Due to the easy processing and the very high UTS, the Zylon/epoxy composite is suitable as reinforcement material for high-field magnet coils.
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mechanical properties of Zylon epoxy composite
Composites Part B-engineering, 2002Co-Authors: Y.k Huang, P.h Frings, E HennesAbstract:Abstract The Zylon/epoxy composite is formed by wet-winding Zylon fibre, poly( p -phenylene-2,6-benzobisoxazole) or PBO, with the epoxy (Stycast 1266). The effects of pre-stress on the distribution and the filling factor of the fibre are studied. It is shown that a Zylon/epoxy composite with a uniform fibre distribution and a very high filling factor is achievable. The mechanical properties of the Zylon/epoxy composite at room temperature and 77 K are investigated by uni-axial tensile tests and transverse compression tests. The results indicate that the ultimate tensile strength (UTS) of the Zylon/epoxy composite is mainly determined by the fraction of the Zylon fibre. The UTS of the Zylon fibres in the composite is found to be larger than 4.3 GPa. Due to the easy processing and the very high UTS, the Zylon/epoxy composite is suitable as reinforcement material for high-field magnet coils.
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exploding pressure vessel test on Zylon epoxy composite
Composites Part B-engineering, 2002Co-Authors: Y.k Huang, P.h Frings, E HennesAbstract:Abstract The efficiency of Zylon/epoxy composites under radial load for the reinforcement of high-field magnet coils is studied using the exploding pressure vessel technique. Under the combined stresses in tangential and radial directions, the behaviour of Zylon/epoxy composite is well described by the theory of orthotropic cylindrical shells when the pre-stress effects are considered. The ultimate tensile strength of the Zylon/epoxy shell with a fibre-filling factor of 90% is found to be 4.8 GPa. The bursting pressure (maximal radial stress) is, for a given filling factor, a monotonically increasing function of the ratio of the shell thickness to inner radius. The beneficial effects of the pre-stress during winding on the reinforcement are discussed.
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Exploding pressure vessel test on Zylon/epoxy composite
Composites Part B-engineering, 2002Co-Authors: Y.k Huang, P.h Frings, E HennesAbstract:Abstract The efficiency of Zylon/epoxy composites under radial load for the reinforcement of high-field magnet coils is studied using the exploding pressure vessel technique. Under the combined stresses in tangential and radial directions, the behaviour of Zylon/epoxy composite is well described by the theory of orthotropic cylindrical shells when the pre-stress effects are considered. The ultimate tensile strength of the Zylon/epoxy shell with a fibre-filling factor of 90% is found to be 4.8 GPa. The bursting pressure (maximal radial stress) is, for a given filling factor, a monotonically increasing function of the ratio of the shell thickness to inner radius. The beneficial effects of the pre-stress during winding on the reinforcement are discussed.
Y.k Huang - One of the best experts on this subject based on the ideXlab platform.
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Mechanical properties of Zylon/epoxy composite
Composites Part B-engineering, 2002Co-Authors: Y.k Huang, P.h Frings, E HennesAbstract:Abstract The Zylon/epoxy composite is formed by wet-winding Zylon fibre, poly( p -phenylene-2,6-benzobisoxazole) or PBO, with the epoxy (Stycast 1266). The effects of pre-stress on the distribution and the filling factor of the fibre are studied. It is shown that a Zylon/epoxy composite with a uniform fibre distribution and a very high filling factor is achievable. The mechanical properties of the Zylon/epoxy composite at room temperature and 77 K are investigated by uni-axial tensile tests and transverse compression tests. The results indicate that the ultimate tensile strength (UTS) of the Zylon/epoxy composite is mainly determined by the fraction of the Zylon fibre. The UTS of the Zylon fibres in the composite is found to be larger than 4.3 GPa. Due to the easy processing and the very high UTS, the Zylon/epoxy composite is suitable as reinforcement material for high-field magnet coils.
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mechanical properties of Zylon epoxy composite
Composites Part B-engineering, 2002Co-Authors: Y.k Huang, P.h Frings, E HennesAbstract:Abstract The Zylon/epoxy composite is formed by wet-winding Zylon fibre, poly( p -phenylene-2,6-benzobisoxazole) or PBO, with the epoxy (Stycast 1266). The effects of pre-stress on the distribution and the filling factor of the fibre are studied. It is shown that a Zylon/epoxy composite with a uniform fibre distribution and a very high filling factor is achievable. The mechanical properties of the Zylon/epoxy composite at room temperature and 77 K are investigated by uni-axial tensile tests and transverse compression tests. The results indicate that the ultimate tensile strength (UTS) of the Zylon/epoxy composite is mainly determined by the fraction of the Zylon fibre. The UTS of the Zylon fibres in the composite is found to be larger than 4.3 GPa. Due to the easy processing and the very high UTS, the Zylon/epoxy composite is suitable as reinforcement material for high-field magnet coils.
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exploding pressure vessel test on Zylon epoxy composite
Composites Part B-engineering, 2002Co-Authors: Y.k Huang, P.h Frings, E HennesAbstract:Abstract The efficiency of Zylon/epoxy composites under radial load for the reinforcement of high-field magnet coils is studied using the exploding pressure vessel technique. Under the combined stresses in tangential and radial directions, the behaviour of Zylon/epoxy composite is well described by the theory of orthotropic cylindrical shells when the pre-stress effects are considered. The ultimate tensile strength of the Zylon/epoxy shell with a fibre-filling factor of 90% is found to be 4.8 GPa. The bursting pressure (maximal radial stress) is, for a given filling factor, a monotonically increasing function of the ratio of the shell thickness to inner radius. The beneficial effects of the pre-stress during winding on the reinforcement are discussed.
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Exploding pressure vessel test on Zylon/epoxy composite
Composites Part B-engineering, 2002Co-Authors: Y.k Huang, P.h Frings, E HennesAbstract:Abstract The efficiency of Zylon/epoxy composites under radial load for the reinforcement of high-field magnet coils is studied using the exploding pressure vessel technique. Under the combined stresses in tangential and radial directions, the behaviour of Zylon/epoxy composite is well described by the theory of orthotropic cylindrical shells when the pre-stress effects are considered. The ultimate tensile strength of the Zylon/epoxy shell with a fibre-filling factor of 90% is found to be 4.8 GPa. The bursting pressure (maximal radial stress) is, for a given filling factor, a monotonically increasing function of the ratio of the shell thickness to inner radius. The beneficial effects of the pre-stress during winding on the reinforcement are discussed.
P.h Frings - One of the best experts on this subject based on the ideXlab platform.
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Mechanical properties of Zylon/epoxy composite
Composites Part B-engineering, 2002Co-Authors: Y.k Huang, P.h Frings, E HennesAbstract:Abstract The Zylon/epoxy composite is formed by wet-winding Zylon fibre, poly( p -phenylene-2,6-benzobisoxazole) or PBO, with the epoxy (Stycast 1266). The effects of pre-stress on the distribution and the filling factor of the fibre are studied. It is shown that a Zylon/epoxy composite with a uniform fibre distribution and a very high filling factor is achievable. The mechanical properties of the Zylon/epoxy composite at room temperature and 77 K are investigated by uni-axial tensile tests and transverse compression tests. The results indicate that the ultimate tensile strength (UTS) of the Zylon/epoxy composite is mainly determined by the fraction of the Zylon fibre. The UTS of the Zylon fibres in the composite is found to be larger than 4.3 GPa. Due to the easy processing and the very high UTS, the Zylon/epoxy composite is suitable as reinforcement material for high-field magnet coils.
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mechanical properties of Zylon epoxy composite
Composites Part B-engineering, 2002Co-Authors: Y.k Huang, P.h Frings, E HennesAbstract:Abstract The Zylon/epoxy composite is formed by wet-winding Zylon fibre, poly( p -phenylene-2,6-benzobisoxazole) or PBO, with the epoxy (Stycast 1266). The effects of pre-stress on the distribution and the filling factor of the fibre are studied. It is shown that a Zylon/epoxy composite with a uniform fibre distribution and a very high filling factor is achievable. The mechanical properties of the Zylon/epoxy composite at room temperature and 77 K are investigated by uni-axial tensile tests and transverse compression tests. The results indicate that the ultimate tensile strength (UTS) of the Zylon/epoxy composite is mainly determined by the fraction of the Zylon fibre. The UTS of the Zylon fibres in the composite is found to be larger than 4.3 GPa. Due to the easy processing and the very high UTS, the Zylon/epoxy composite is suitable as reinforcement material for high-field magnet coils.
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exploding pressure vessel test on Zylon epoxy composite
Composites Part B-engineering, 2002Co-Authors: Y.k Huang, P.h Frings, E HennesAbstract:Abstract The efficiency of Zylon/epoxy composites under radial load for the reinforcement of high-field magnet coils is studied using the exploding pressure vessel technique. Under the combined stresses in tangential and radial directions, the behaviour of Zylon/epoxy composite is well described by the theory of orthotropic cylindrical shells when the pre-stress effects are considered. The ultimate tensile strength of the Zylon/epoxy shell with a fibre-filling factor of 90% is found to be 4.8 GPa. The bursting pressure (maximal radial stress) is, for a given filling factor, a monotonically increasing function of the ratio of the shell thickness to inner radius. The beneficial effects of the pre-stress during winding on the reinforcement are discussed.
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Exploding pressure vessel test on Zylon/epoxy composite
Composites Part B-engineering, 2002Co-Authors: Y.k Huang, P.h Frings, E HennesAbstract:Abstract The efficiency of Zylon/epoxy composites under radial load for the reinforcement of high-field magnet coils is studied using the exploding pressure vessel technique. Under the combined stresses in tangential and radial directions, the behaviour of Zylon/epoxy composite is well described by the theory of orthotropic cylindrical shells when the pre-stress effects are considered. The ultimate tensile strength of the Zylon/epoxy shell with a fibre-filling factor of 90% is found to be 4.8 GPa. The bursting pressure (maximal radial stress) is, for a given filling factor, a monotonically increasing function of the ratio of the shell thickness to inner radius. The beneficial effects of the pre-stress during winding on the reinforcement are discussed.
Tao Peng - One of the best experts on this subject based on the ideXlab platform.
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Development of Zylon-Kevlar-Zylon Hybrid Fiber Reinforcement Technology for 100 T Pulsed Magnet at the WHMFC
IEEE Transactions on Applied Superconductivity, 2020Co-Authors: Shuang Wang, Zelin Wu, Shan Jiang, Guangda Wang, Rundong Huang, Tao PengAbstract:The reinforcement technology combining Zylon/epoxy composite and Kevlar/epoxy composite has been proposed to design the 100 T Pulsed Magnet at the Wuhan National High Magnetic Field Center (WHMFC). The reinforcement layers in the preliminary 100 T pulsed magnet consisted of Zylon/epoxy composite, which is replaced with Zylon-Kevlar-Zylon hybrid fiber in the layers where the von Mises stress in Zylon/epoxy composite exceeds 3.5 GPa. Kevlar fabric has better wet impregnation properties with epoxy due to its rougher surface than Zylon fiber, which can effectively prevent shear movement of the conductor layer and the reinforcement layer. The simulation shows that the maximum von Mises stress in the Zylon-Kevlar-Zylon hybrid fiber is 3.68 GPa. The measured ultimate tensile strength (UTS) is 4.97 GPa via the explosion test with small pulsed magnet, which shows that the new reinforcement technology meets the stress requirements for 100 T.
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Electromagnetically Driven Expanding Ring Test for the Strength Study of the Zylon/Epoxy Composite
IEEE Transactions on Applied Superconductivity, 2016Co-Authors: Fan Jiang, Quqin Sun, Zhipeng Lai, B. Luo, Yuan Pan, Tao PengAbstract:An improved electromagnetically launched method for driving specimens of composite materials is developed. The electromagnetic expansion ring device consists of a solenoid and sample rings. The solenoid is made up of eight layers of copper wire reinforced with Zylon fiber, which can produce magnetic field up to 35 T. The sample ring is composed of a high-conductivity driver (6061-T6 aluminum ring) and a layer of Zylon/epoxy composite that is directly wound on the driver. The solenoid driven by a 100-kJ (25 kV, 320 $\mu\text{F}$) capacitor bank is designed for inducing a pulsed current in the aluminum driver. Consequently, the induced current interacts with the axial magnetic field at the center plane of the solenoid to produce a large, uniform, and outward electromagnetic force. The Zylon/epoxy composite specimen is thus pushed outward by the aluminum driver. By adjusting the charging voltage of the capacitor bank, the force can be adjusted, and thus, the strength of the sample can be easily found by exploding the rings. Different thickness values of the sample rings with an aluminum driver have been tested. The strength is calculated to be around 5.2 GPa by means of finite element analysis.
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electromagnetically driven expanding ring test for the strength study of the Zylon epoxy composite
IEEE Transactions on Applied Superconductivity, 2016Co-Authors: Fan Jiang, Quqin Sun, Zhipeng Lai, B. Luo, Yuan Pan, Tao PengAbstract:An improved electromagnetically launched method for driving specimens of composite materials is developed. The electromagnetic expansion ring device consists of a solenoid and sample rings. The solenoid is made up of eight layers of copper wire reinforced with Zylon fiber, which can produce magnetic field up to 35 T. The sample ring is composed of a high-conductivity driver (6061-T6 aluminum ring) and a layer of Zylon/epoxy composite that is directly wound on the driver. The solenoid driven by a 100-kJ (25 kV, 320 $\mu\text{F}$) capacitor bank is designed for inducing a pulsed current in the aluminum driver. Consequently, the induced current interacts with the axial magnetic field at the center plane of the solenoid to produce a large, uniform, and outward electromagnetic force. The Zylon/epoxy composite specimen is thus pushed outward by the aluminum driver. By adjusting the charging voltage of the capacitor bank, the force can be adjusted, and thus, the strength of the sample can be easily found by exploding the rings. Different thickness values of the sample rings with an aluminum driver have been tested. The strength is calculated to be around 5.2 GPa by means of finite element analysis.
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Measurement of the Deformation in Pulsed Magnets by Means of Optical Fiber Sensors
IEEE Transactions on Applied Superconductivity, 2012Co-Authors: Tao Peng, Houxiu Xiao, Fritz HerlachAbstract:A typical compact pulsed magnet coil wound from copper and Zylon fiber was fabricated with optical fiber sensors embedded at different places in the Zylon layers. Measurements of deformation have been carried out during winding, cooling and with magnetic field pulses up to 10 T at room temperature and 41 T at 77 K. The results are in agreement with the calculated strain distribution by taking into account the anisotropy of fiber/epoxy composites.
Shing Chung Josh Wong - One of the best experts on this subject based on the ideXlab platform.
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effect of rubber functionality on microstructures and fracture toughness of impact modified nylon 6 6 polypropylene blends 1 structure property relationships
Polymer, 1999Co-Authors: Shing Chung Josh WongAbstract:Abstract The effects of maleic anhydride (MA) content and its reactive functionality on the phase size and phase morphology of nylon 6,6/polypropylene (PP) blends were studied. The blends were obtained by simultaneous compounding of maleated styrene–ethylene–butylene–styrene block copolymers (SEBS) containing different amounts of MA, with nylon and PP. The microstructures were examined using cross-polarized transmission optical microscopy (TOM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Both tensile and fracture properties of the maleated blends were reported and discussed in terms of the morphological features uncovered by these microscopic techniques. Tensile strength increased with MA-grafted SEBS content in the 75/25 nylon 6,6/PP blends but a reverse trend was observed in the 50/50 nylon 6,6/PP blends. It was thought that this was caused by the migration of the functionalized styrenic block copolymers from the PP phase to the dispersed nylon domains in the 50/50 nylon 6,6/PP blends. An optimized morphology was found when SEBS grafted with 0.74 wt% MA was blended with 75/25 nylon 6,6/PP. At this composition, SEBS inclusions were dispersed uniformly in the continuous nylon matrix and thin layers of SEBS molecules also existed at the nylon-PP interface. The latter gave a morphology similar to a core-shell rubber modified structure (i.e. SEBS shell and PP core) and imparted the highest fracture toughness to this blend with an optimal combination of tensile strength and ductility.
