Carbon Fiber Reinforced Polymer (CFRP) composites are often used as aircraft structural components, mostly due to their superior mechanical properties. In order to improve the efficiency of these structures, it is important to detect and characterize any defects occurring during the manufacturing process...
Carbon fiber reinforced plastics (CFRP) offer high specific mechanical properties (performance vs weight ratio). Since carbon fibers are electrical conductors ({rho} = 2.10{sup {minus}5} {Omega}.m), the measurement of the variations of electrical resistance appears to be a valuable technique for...
2.This artical draws together theoretical models and real data to analyze the fluid properties in satured EDA media whose wallrocks are sandstone and limestone equivalently based on rock physics and the new methods of identification of fluid anomalies using acoustic impedances.基于岩石物理学和利用声波...
mechanical propertiesThe effects of moisture on the mechanical and acoustic properties of flax fibers embedded in polypropylene (PP) were investigated in the present study. Flax/PP and hybrid flax-carbon/PP samples were immersed in water at controlled temperatures. The water intake over time in ...
& Koga, K. Temperature dependence of elastic, dielectric, and piezoelectric properties of “single crystalline” films of vinylidene fluoride trifluoroethylene copolymer. J. Appl. Phys. 81, 2760–2769 (1997). Article ADS CAS Google Scholar Wang, H., Zhang, Q. M., Cross, L. E. & Sykes,...
S is the cross-sectional area of the neck, c is the speed of sound, and V is the volume of the resonator cavity. The periodic composite materials, sonic crystals and acoustic metamaterials [67, 68], exhibit many acoustic properties, and the propagation of elastic or acoustic waves in ...
13.A Study of the Acoustical Properties of Compound Impedance in Sound Absorbing Structure阻抗复合吸声结构的理论与声学特性研究 14.The product is separated from the principle of suction by the absorption layer, a buffer layer, integrated sound insulation layer formed.该产品采用外隔内吸的原理,由吸声...
Experimental Investigation on Piezoresistive Properties and Acoustic Emission Characteristics of Carbon Fiber–Based Gangue Concrete Concrete with coal gangue as aggregate has a self-sensing ability with addition of carbon fiber (CF), which has an outstanding effect in terms of dealing w... Z He,F ...
The principle of acoustic emission (AE) technology was introduced in this work, as well as the application and the achievements of AE in recent years, such as the utilization in unidirectional carbon fiber reinforced composite. References for in-depth research of material properties and failure mech...
Desirable properties of carbon fiber-reinforced plastic (CFRP) composites include their high strength, high rigidity, light weight, corrosion free, and fatigue resistance. CFRP composites are popularly applied in bridge engineering structures, but the causes of fatigue damage in CFRP bridges have not ...