scholarly journals Damping Properties of Hybrid Composites Made from Carbon, Vectran, Aramid and Cellulose Fibers

2021 ◽  
Vol 6 (1) ◽  
pp. 13
Author(s):  
Hauke Kröger ◽  
Stephan Mock ◽  
Christoph Greb ◽  
Thomas Gries
Keyword(s):  
Carbon Fiber ◽  
Hybrid Composites ◽  
Cellulose Fibers ◽  
Carbon Fiber Composites ◽  
Material Damping ◽  
Damping Properties ◽  
Simultaneous Reduction ◽  
Strength And Stiffness ◽  
Fiber Materials ◽  
Material Tests

Hybridization of carbon fiber composites can increase the material damping of composite parts. However, there is little research on a direct comparison of different fiber materials—particularly for carbon fiber intraply-hybrid composites. Hence, the mechanical- and damping properties of different carbon fiber intraply hybrids are analyzed in this paper. Quasi unidirectional fabrics made of carbon, aramid, Vectran and cellulose fibers are produced, and their mechanical properties are analyzed. The material tests show an increased material damping due to the use of Vectran and aramid fibers, with a simultaneous reduction in strength and stiffness.

Mechanical and Fracture Mechanical Properties of Matrix-Reinforced Carbon Fiber Composites with Carbon Nanotubes

2019 ◽  
Vol 809 ◽  
pp. 615-619 ◽  
Author(s):  
Gerhard Sinn ◽  
Gerald Singer ◽  
Leo Jocher ◽  
Miriam M. Unterlass ◽  
Harald Rennhofer ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
High Strength ◽  
Negative Influence ◽  
Carbon Fiber Composites ◽  
Bending Tests ◽  
Reinforced Plastics ◽  
Aerospace Applications ◽  
Four Point Bending ◽  
Low Weight ◽  
Strength And Stiffness

Carbon fiber reinforced Plastics are materials with high strength and stiffness at low weight compared to metals. These properties make the materials ideal candidate for structures in aerospace applications, where they are often used under bending conditions. Due to the strongly anisotropic composition the CFRP typically fail in compression by fiber buckling. In order to improve this weakness, nanotube and nanofiber reinforced matrix was used to build CFRP. Four-point bending tests showed that stiffness and strength could be improved by the fillers, whereas negative influence was found on fracture energy.

Toughness Properties of Basalt/Carbon Fiber Hybrid Composites

2010 ◽  
Vol 150-151 ◽  
pp. 732-735 ◽  
Author(s):  
Chun Hua Zhang ◽  
Jin Bao Zhang ◽  
Mu Chao Qu ◽  
Jian Nan Zhang
Keyword(s):  
Carbon Fiber ◽  
Composite Laminates ◽  
Laminate Composite ◽  
Hybrid Composites ◽  
Fiber Composite ◽  
Basalt Fiber ◽  
Carbon Fiber Composites ◽  
Carbon Fiber Composite ◽  
Carbon Fiber Laminate ◽  
Open Hole

Basalt fiber and carbon fiber hybrid with alternate stacking sequences reinforced epoxy composites have been developed to improve the toughness properties of conventional carbon fiber reinforced composite materials. For comparison, plain carbon fiber laminate composite and plain basalt fiber laminate composite have also been fabricated. The toughness properties of each laminate have been studied by an open hole compression test. The experimental results confirm that hybrid composites containing basalt fibers display 46% higher open hole compression strength than that of plain carbon fiber composites. It is indicated that the hybrid composite laminates are less sensitive to open hole compared with plain carbon fiber composite laminate and high toughness properties can be prepared by fibers' hybrid.

scholarly journals Multiscale Hybrid Micro-Nanocomposites Based on Carbon Nanotubes and Carbon Fibers

2010 ◽  
Vol 2010 ◽  
pp. 1-12 ◽  
Author(s):  
Fawad Inam ◽  
Doris W. Y. Wong ◽  
Manabu Kuwata ◽  
Ton Peijs
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Fiber ◽  
Hybrid Composites ◽  
Flexural Modulus ◽  
Mechanical Analysis ◽  
Impact Testing ◽  
Mode I ◽  
Carbon Fiber Composites ◽  
Resin Infusion ◽  
Maximum Enhancement

Amino-modified double wall carbon nanotube (DWCNT-NH2)/carbon fiber (CF)/epoxy hybrid micro-nanocomposite laminates were prepared by a resin infusion technique. DWCNT-NH2/epoxy nanocomposites and carbon fiber/epoxy microcomposites were made for comparison. Morphological analysis of the hybrid composites was performed using field emission scanning electron microscope. A good dispersion at low loadings of carbon nanotubes (CNTs) in epoxy matrix was achieved by a bath ultrasonication method. Mechanical characterization of the hybrid micro-nanocomposites manufactured by a resin infusion process included three-point bending, mode I interlaminar toughness, dynamic mechanical analysis, and drop-weight impact testing. The addition of small amounts of CNTs (0.025, 0.05, and 0.1 wt%) to epoxy resins for the fabrication of multiscale carbon fiber composites resulted in a maximum enhancement in flexural modulus by 35%, a 5% improvement in flexural strength, a 6% improvement in absorbed impact energy, and 23% decrease in the mode I interlaminar toughness. Hybridization of carbon fiber-reinforced epoxy using CNTs resulted in a reduction in and dampening characteristics, presumably as a result of the presence of micron-sized agglomerates.

Tensile behavior of hybrid epoxy composite laminate containing carbon and basalt fibers

2014 ◽  
Vol 21 (2) ◽  
pp. 211-217 ◽  
Author(s):  
I.D.G. Ary Subagia ◽  
Yonjig Kim
Keyword(s):  
Tensile Strength ◽  
Carbon Fiber ◽  
Hybrid Composites ◽  
Low Cost ◽  
Basalt Fiber ◽  
Fiber Reinforced ◽  
Basalt Fibers ◽  
Hybrid Laminates ◽  
Carbon Fiber Reinforced ◽  
Strength And Stiffness

AbstractThis paper investigated the effect of the incorporation of basalt fibers on the tensile properties of carbon fiber-reinforced epoxy laminates manufactured by vacuum-assisted resin transfer molding. The purpose of this research was to design a carbon-basalt/epoxy hybrid composite material that is of low cost in production, is lightweight, and has good strength and stiffness. The tensile strength and stiffness of the hybrid laminates demonstrated a steady, linear decrease with an increase in basalt fiber content, but the fracture strain gradually increased together with the increase in the basalt layer content. In this study, the incorporation of basalt fibers into the carbon fiber-reinforced polymer (CFRP) showed lower tensile strength than CFRP but has higher tensile strain. Furthermore, we found that the arrangement and enhancement of basalt fiber into the CFRP significantly influence the mechanical properties of interply hybrid composites.

Vibration Damping Enhancement in Hybrid Carbon Fiber Composites With Zinc Oxide Nanowire Interphase

2014 ◽  
Author(s):  
Mohammad H. Malakooti ◽  
Hyun-Sik Hwang ◽  
Henry A. Sodano
Keyword(s):  
Carbon Fiber ◽  
Polymer Matrix ◽  
Hydrothermal Reaction ◽  
Hybrid Composites ◽  
Fiber Composites ◽  
Vibration Damping ◽  
Zno Nanowires ◽  
Interfacial Region ◽  
Carbon Fiber Composites ◽  
Carbon Fabric

Traditional composite materials invented to be used in structures with the purpose of high load-bearing with excellent in-plane properties. Continuous fiber reinforced composites are one of the mostly used categories of advanced composites. This class of composites has gained a lot of attention due to their light-weight and decent mechanical properties. However, additional material design is required to tune both mechanical and structural properties of these composites. Since the load transfer between reinforcement phase and polymer matrix happens at the interfacial region, a better interphase might result in a composite with higher vibration damping. In this study, a gradient interphase between carbon fiber and polymer matrix has been created by using ZnO nanowires to engineer the damping loss factor of the carbon fiber composites. For the growth of ZnO nanowires on the carbon fabric, low temperature hydrothermal reaction has been used. Then the carbon fabrics with ZnO nanowires were infiltrated with a low viscosity epoxy using vacuum assisted resin transfer molding technique. The stiffness and structural damping of the composite were examined using dynamic mechanical analysis. The results show that the damping properties of hybrid composites using ZnO nanowires are enhanced compare to the bare carbon fabric composites. Since the growth of ZnO nanowires is a tunable process, the length, diameter and aspect ratio of the nanowires and consequently the architecture of the interphase can be tailored for the desired vibration damping in the system. Thus, the hybrid composites with ZnO nanowire interphase can be used to enhance the energy dissipation in a structural system.

Quantifying Alumina Nanoparticle Dispersion in Hybrid Carbon Fiber Composites Using Photoluminescent Spectroscopy

2016 ◽  
Vol 71 (2) ◽  
pp. 258-266 ◽  
Author(s):  
Imad Hanhan ◽  
Alex Selimov ◽  
Declan Carolan ◽  
Ambrose C. Taylor ◽  
Seetha Raghavan
Keyword(s):  
Carbon Fiber ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Matrix Material ◽  
Particle Dispersion ◽  
Alumina Nanoparticles ◽  
Site Quality ◽  
Carbon Fiber Composites ◽  
Nanoparticle Dispersion ◽  
Hybrid Carbon

Composites modified with nanoparticles are of interest to many researchers due to the large surface-area-to-volume ratio of nano-scale fillers. One challenge with nanoscale materials that has received significant attention is the dispersion of nanoparticles in a matrix material. A random distribution of particles often ensures good material properties, especially as it relates to the thermal and mechanical performance of composites. Typical methods to quantify particle dispersion in a matrix material include optical, scanning electron, and transmission electron microscopy. These utilize images and a variety of analysis methods to describe particle dispersion. This work describes how photoluminescent spectroscopy can serve as an additional technique capable of quickly and comprehensively quantifying particle dispersion of photoluminescent particles in a hybrid composite. High resolution 2D photoluminescent maps were conducted on the front and back surfaces of a hybrid carbon fiber reinforced polymer containing varying contents of alumina nanoparticles. The photoluminescent maps were analyzed for the intensity of the alumina R1 fluorescence peak, and therefore yielded alumina particle dispersion based on changes in intensity from the embedded nanoparticles. A method for quantifying particle sedimentation is also proposed that compares the photoluminescent data of the front and back surfaces of each hybrid composite and assigns a single numerical value to the degree of sedimentation in each specimen. The methods described in this work have the potential to aid in the manufacturing processes of hybrid composites by providing on-site quality control options, capable of quickly and noninvasively providing feedback on nanoparticle dispersion and sedimentation.

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