Investigation of mechanical properties of carbon fiber reinforced plastics with different typed of hybrid matrices at negative temperatures

2001 ◽  
Vol 0 (1) ◽  
pp. 7-11
Author(s):  
E. A. Kosenko ◽  
◽  
N. I. Baurova ◽  
V. A. Zorin ◽  
◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Polymeric Materials ◽  
Tensile Tests ◽  
Fiber Reinforced ◽  
Molding Process ◽  
Reinforced Plastics ◽  
Reinforced Plastic ◽  
Fiber Reinforced Plastics ◽  
Carbon Fiber Reinforced ◽  
Mechanical Tensile

The technology of creating specimens of carbon fiber reinforced plastic with different types of hybrid matrices is described, one of the components of which retains its viscoelastic state, and the second is completely cured during the molding process. Technical wax, anaerobic and organosilicon polymeric materials are accepted as viscoelastic components of the hybrid matrix. The results of mechanical tensile tests of these specimens, performed at temperatures t1 = 20 ± 2 °С and t2 = –30 °С are presented.

Development of PCD Milling Tool for Carbon-Fiber-Reinforced Plastics

2014 ◽  
Vol 1017 ◽  
pp. 411-414
Author(s):  
Takayuki Kitajima ◽  
Jumpei Kusuyama ◽  
Akinori Yui ◽  
Katsuji Fujii ◽  
Yosuke Itoh
Keyword(s):  
Carbon Fiber ◽  
Carbon Fibers ◽  
Polycrystalline Diamond ◽  
Fiber Reinforced ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastics ◽  
Reinforced Plastic ◽  
Milling Tool ◽  
Fiber Reinforced Plastics ◽  
Carbon Fiber Reinforced

Interest in carbon-fiber-reinforced plastic (CFRP) has been growing for the last several years. CFRP, a composite material made of carbon fibers and resins, has high mechanical characteristics and is well known as a difficult-to-cut material. During the process of drilling or cutting of CFRP, tool wear and delamination occur frequently. In this study, the authors developed a milling tool for CFRP using polycrystalline diamond, and the cutting performance of the developed tool was investigated.

Mechanical Characteristic Changes of Carbon Fiber Reinforced Plastics (CFRP) Depending on the Lamination Methods

2014 ◽  
Vol 1016 ◽  
pp. 130-134
Author(s):  
In Pyo Cha ◽  
Hee Jae Shin ◽  
Min Sang Lee ◽  
Sung Woo Hong ◽  
Jin Young Kwon ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Tensile Test ◽  
Mechanical Characteristic ◽  
Tensile Tests ◽  
Woven Fabric ◽  
Fiber Reinforced ◽  
Reinforced Plastics ◽  
Reinforced Plastic ◽  
Plastic Forming ◽  
Carbon Fiber Reinforced

The prepreg process among the CFRP (Carbon Fiber Reinforced Plastic) forming methods is the short term of ‘Pre-impregnation’, which is widely used for aerospace composites that require a high quality property such as a fiber-reinforced woven fabric, in which an epoxy hardening resin is impregnated. the reality is, however, that this process requires continuous researches and developments for its commercialization because the delamination characteristically develops between the layers when a great weight is loaded from outside. to supplement such demerit, three lamination methods among the prepreg lamination methods of CFRP were designed to minimize the delamination between the layers due to external impacts. Further, the newly designed methods and the existing lamination methods were analyzed through a mechanical characteristic test, tensile test and infrared thermal device during the tensile tests, to obtain a better property than the existing lamination methods. the tensile test result showed that the newly designed three lamination methods, i.e. Roll, Half and Zigzag lamination methods, appeared superior to the Play lamination method in the aspects of the strength and strain. The strength of the Zigzag lamination method, which was the highest, was confirmed as being improved by about 20% than that of the Ply method.

scholarly journals Fabrication and Characterization of Carbon Fiber Reinforced Plastics Containing Magnetostrictive Fe-Co Fibers with Damage Self-Detection Capability

Sensors ◽  
2019 ◽  
Vol 19 (22) ◽  
pp. 4984 ◽  
Author(s):  
Kenichi Katabira ◽  
Hiroki Kurita ◽  
Yu Yoshida ◽  
Fumio Narita
Keyword(s):  
Carbon Fiber ◽  
Magnetic Flux Density ◽  
Fiber Reinforced ◽  
Response Characteristics ◽  
Reinforced Plastics ◽  
Reinforced Plastic ◽  
Bending Load ◽  
Fiber Reinforced Plastics ◽  
Carbon Fiber Reinforced

Carbon fiber reinforced plastic (CFRP) is an excellent choice in the areas where weight reduction is important and multi-functionalization of CFRP, especially by adding sensor capabilities, is a promising approach to realize lightweight battery-free devices in structural health monitoring (SHM). In this study, we fabricated hybrid CFRP with Fe-Co fibers and evaluated the inverse magnetostrictive response characteristics. It was shown that the measured magnetic flux density of the CFRP fluctuates in response to cyclic bending load. It was also revealed that our Fe-Co fiber inserted CFRP has damage self-sensing ability. In addition, it seems that the optimization of design and more experimental and numerical investigation improves the capability of the hybrid CFRP with Fe-Co fiber as sensor composite materials.

INCREASING SENSITIVITY OF EDDY CURRENT NON-DESTRUCTIVE TESTING OF DELAMINATION IN CARBON-FIBER REINFORCED PLASTICS

2021 ◽  
pp. 28-37
Author(s):  
P. N. Shkatov ◽  
G. A. Didin ◽  
A. A. Ermolaev
Keyword(s):  
Carbon Fiber ◽  
Eddy Current ◽  
Calculation Model ◽  
Fiber Reinforced ◽  
Destructive Testing ◽  
Carbon Fiber Reinforced Plastics ◽  
Reinforced Plastics ◽  
Fiber Reinforced Plastics ◽  
Carbon Fiber Reinforced ◽  
The Difference

The paper is concerned with increasing sensitivity of eddy current nondestructive testing of most dangerous delamination in carbon-fiber reinforced plastics (CFRP). Increased sensitivity is achieved by separate registration and comparison of eddy current signals obtained from a set of stratifications of carbon fibers with the same orientation. The separation of eddy current signals is possible due to pronounced anisotropy of the electrical conductivity of the layers dominant in the direction of the fibers of the corresponding layer. Eddy-current signals are registered by eddy current probes with maximum sensitivity in a given angular direction. Prior to the scan eddy current signals of the probe are leveled on a defect-free area. The influence of the working gap on the difference between the eddy current signals of the probe is suppressed by normalizing it according to one of the signals. The analysis of the registered signals from delamination has been performed using an approximate calculation model. The reliability of the obtained results has been confirmed by comparison with experimental results and calculations using the finite element method.

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