Carbon nanotube/carbon fiber hybrid multiscale composites

2002 ◽  
Vol 91 (9) ◽  
pp. 6034-6037 ◽  
Author(s):  
E. T. Thostenson ◽  
W. Z. Li ◽  
D. Z. Wang ◽  
Z. F. Ren ◽  
T. W. Chou
Keyword(s):  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Multiscale Composites

Experimental Study of Mechanical Properties of Multiscale Carbon Fiber-Epoxy-CNT Composites

2011 ◽  
Vol 383-390 ◽  
pp. 2723-2727 ◽  
Author(s):  
Kamal Sharma ◽  
Mukul Shukla
Keyword(s):  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Flexural Modulus ◽  
Epoxy Composites ◽  
Stress Tests ◽  
Multi Scale ◽  
Young’S Moduli ◽  
Macro Scale ◽  
Micromechanical Models ◽  
Multiscale Composites

Recently intensive research has been carried out on carbon nanotube (CNT) based polymer composites. However, in this work the macro scale IM700 carbon fiber (CF) has been integrated with amino modified multi-wall carbon nanotubes (MWCNT-NH2) within LY-556 epoxy matrix to produce three-phase, multi-scale composites, with the applications in missiles. The fictionalization of CNTs has been carried out for improved and consistent mechanical and physical properties. High frequency probe sonication method was used for homogenous dispersion of CNTs. Mechanical characterization of the multiscale composites fabricated by hand layup process included tensile, flexure and inter-laminar shear stress tests. The addition of small amounts of MWCNTs (upto 1.5 weight %) for the fabrication of multiscale composites resulted in a maximum enhancement in tensile strength by 23% , flexural modulus by 35%, flexural strength by 5% and ILSS by 7%. CF/epoxy composites (without CNTs) have also been characterized for comparison with MWCNT-NH2/CF/ epoxy composites. For a more accurate prediction of the Young’s moduli of multi-scale composites several micromechanical models (Voigt-Reuss, Halpin-Tsai, and modified mixture Law) compared with the experimental work. These models have been tested for upto 1.5 weight % of CNTs. The difference of approximate 28% of the values in Young’s modulus has been reported in the classical micromechanical models and experimental results and it comes out 11% for CF/epoxy composites as they do not have reinforcement of CNT’s within it. In all the classical models, the Young’s moduli of the carbon nanotube composites were used as matrix properties.

scholarly journals In situ formation of a carbon nanotube buckypaper for improving the interlaminar properties of carbon fiber composites

2021 ◽  
Vol 202 ◽  
pp. 109535
Author(s):  
Yadong Wu ◽  
Xiuyan Cheng ◽  
Shaoyun Chen ◽  
Bo Qu ◽  
Rui Wang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Fiber Composites ◽  
Carbon Fiber Composites ◽  
In Situ Formation

Mechanical properties of carbon nanotube/carbon fiber reinforced thermoplastic polymer composite

2015 ◽  
Vol 38 (9) ◽  
pp. 2001-2008 ◽  
Author(s):  
Wenbo Liu ◽  
Lizhi Li ◽  
Shu Zhang ◽  
Fan Yang ◽  
Rongguo Wang
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Polymer Composite ◽  
Thermoplastic Polymer ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced

Structural Health Monitoring for Carbon Fiber/Carbon Nanotube (CNT)/Epoxy Composite Sensor

2006 ◽  
Vol 321-323 ◽  
pp. 290-293 ◽  
Author(s):  
Sang Il Lee ◽  
Dong Jin Yoon
Keyword(s):  
Electrical Resistivity ◽  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Epoxy Composite ◽  
Structural Safety ◽  
Structural Health ◽  
Nanotube Composites ◽  
Carbon Fiber Epoxy

Structural health monitoring for carbon nanotube (CNT)/carbon fiber/epoxy composite was verified by the measurement of electrical resistivity. This study has focused on the preparation of carbon nanotube composite sensors and their application for structural health monitoring. The change of the electrical resistance was measured by a digital multimeter under tensile loads. Although a carbon fiber was broken, the electrical connection was still kept by distributed CNT particles in the model composites. As the number of carbon fiber breakages increased, electrical resistivity was stepwise increased. The CNT composites were well responded with fiber damages during the electro-micromechnical test. Carbon nanotube composites can be useful sensors for structural health monitoring to diagnose a structural safety and to prevent a collapse.

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