The Influence of Carbon Fiber Composite Material Structures on the Spectral Attenuation Properties of Thermal Radiation

2014 ◽  
Author(s):  
Ming Xie ◽  
Qing Ai ◽  
Xiaochen Xie ◽  
Liu Yang ◽  
HePing Tan
Keyword(s):  
Composite Material ◽  
Carbon Fiber ◽  
Thermal Radiation ◽  
Fiber Composite ◽  
Carbon Fiber Composite ◽  
Fiber Composite Material ◽  
Spectral Attenuation

Electrical conductivity identification of a carbon fiber composite material plate using a rotating magnetic field and multi-coil eddy current sensor

2018 ◽  
Vol 83 (2) ◽  
pp. 20901 ◽  
Author(s):  
Ahmed Chaouki Lahrech ◽  
Bachir Abdelhadi ◽  
Mouloud Feliachi ◽  
Abdelhalim Zaoui ◽  
Mohammed Naїdjate
Keyword(s):  
Magnetic Field ◽  
Neural Networks ◽  
Electrical Conductivity ◽  
Composite Material ◽  
Carbon Fiber ◽  
Fiber Composite ◽  
Rotating Magnetic Field ◽  
Current Sensor ◽  
Carbon Fiber Composite ◽  
Fiber Composite Material

This paper proposes a contactless method for the identification of the electrical conductivity tensor of a carbon fiber composite materials plate using a rotating magnetic field and multi-coil eddy current sensor. This sensor consists of identical rectangular multi-coil, excited by two-phase sinusoidal current source in order to generate a rotating magnetic field and to avoid the mechanical rotation of the sensor. The fibers orientations, the longitudinal and transverse conductivities in each ply of carbon fiber composite material plate were directly determined with analysis of the impedance variation of each coil as function of its angular position. The inversion process is based on the use of artificial neural networks. The direct calculation associated with artificial neural networks makes use of 3D time-harmonic finite element method based on the A, V–A formulation.

Effect of Carbon Fiber Composite Material Casing on Blast Power of Explosive Charge

2009 ◽  
Vol 79-82 ◽  
pp. 461-464
Author(s):  
Wen Jin Yao ◽  
Xiao Ming Wang ◽  
Wen Bin Li ◽  
Xiao Hui Gu
Keyword(s):  
Composite Material ◽  
Carbon Fiber ◽  
Explosive Charge ◽  
Fiber Composite ◽  
Pressure Sensors ◽  
Positive Pressure ◽  
High Speed Photography ◽  
Collateral Damage ◽  
Carbon Fiber Composite ◽  
Fiber Composite Material

A new kind of low collateral damage ammunition with Carbon fiber composite material casing is put forward. The operational principle of this ammunition and its configuration are introduced. Then the casting velocity of lethal unit and air shock wave pressure is analyzed theoretically and simulated. In order to study the effect of casing material on blast power, two different kinds of explosive charges are detonated. Overpressure curve of these two charges is measured using the pressure sensors. From the measured overpressure curve and theoretical simulation results, the duration of the positive pressure of the air blast pressure wave caused by the prototype model of the low collateral damage ammunition is bigger than the explosive charge with Carbon fiber composite material casing and naked explosive charge. From the high speed photography, the lethal units flight to a halt at a small distance. These results show the explosive charge with Carbon fiber composite material casing and metal powder can reduce destruction outside the radius of an intended target while enhancing its destructive force on the target.

Application of Carbon-Fiber Composite Material in Micropile Structure

2020 ◽  
Vol 34 (2) ◽  
pp. 04020017
Author(s):  
Xin Li ◽  
Ming-Zhou Bai ◽  
Tie Li ◽  
Shu-Mao Qiu ◽  
Hai Shi
Keyword(s):  
Composite Material ◽  
Carbon Fiber ◽  
Fiber Composite ◽  
Carbon Fiber Composite ◽  
Fiber Composite Material
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