Experimental investigations of bamboo, cotton and viscose rayon fiber reinforced Unidirectional composites

2020 ◽  
Vol 28 ◽  
pp. 498-503 ◽  
Author(s):  
Sagar Chokshi ◽  
Piyush Gohil ◽  
Darshan Patel
Keyword(s):  
Viscose Rayon ◽  
Experimental Investigations ◽  
Fiber Reinforced ◽  
Unidirectional Composites ◽  
Rayon Fiber

Effects of Different Parameters on Delamination Factor of Glass Fiber Reinforced Plastic (GFRP)

2013 ◽  
Vol 3 (2) ◽  
pp. 17-31
Author(s):  
Vikas Sharma ◽  
Vinod Kumar ◽  
Harmesh Kumar
Keyword(s):  
Glass Fiber ◽  
Feed Rate ◽  
Experimental Investigations ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Plastic ◽  
Fiber Reinforced Plastic ◽  
Delamination Factor ◽  
Glass Fiber Reinforced ◽  
Drill Bits ◽  
Reinforced Plastic

The experimental investigations of the delamination factor of glass fiber reinforced plastic at different cutting parameters are reported in this study. This paper has involved the determination of different factors affecting the hole quality and cause of delamination in a glass fiber reinforced plastic. The various process parameters like different twist drill bits of different materails, different point angle at different speed, feed rate have been taken. The thrust forces and torque values were measured using piezoelectric dynamometer. Mathematical model has been developed for different machining conditions using Minitab software with help of Taguchi design to plan the experiments. The Universal microscope has been used which determines delaminated diameter in GFRP specimens. The finite element method has been applied by using Ansys11.0 software which helped to find out delaminated diameter. It was experimentally observed that for the tungsten carbide and M50 drill bits, the thrust force and torque significant increases on increasing the point angle and feed rate.

Investigation of partially bonded fiber-reinforced elastomeric isolators (PB-FREIs) with nominal vertical tensile loads

2019 ◽  
Vol 46 (8) ◽  
pp. 669-676 ◽  
Author(s):  
Niel C. Van Engelen ◽  
Michael J. Tait ◽  
Dimitrios Konstantinidis
Keyword(s):  
Seismic Isolation ◽  
Low Cost ◽  
Compressive Load ◽  
Polymer Fibers ◽  
Experimental Investigations ◽  
Loading Conditions ◽  
Fiber Reinforced ◽  
Conventional Steel ◽  
Tensile Forces ◽  
The Cost

Unbonded fiber-reinforced elastomeric isolators (FREIs) were initially proposed as a potential low-cost alternative to conventional steel-reinforced elastomeric isolators (SREIs). FREIs are similar to SREIs but comparatively lightweight as the steel components from SREIs have been replaced with polymer fibers in FREIs. Subsequent experimental investigations identified that unbonded FREIs have desirable characteristics for seismic isolation due to the unbonded application and fiber reinforcement. The unbonded application removes mechanical fasteners, relying on friction to transfer horizontal loads, further reducing the cost. However, the unbonded application also introduces limitations, being susceptible to slip in certain loading conditions and being incapable of resisting tensile forces. In this paper, the concept of partially bonded FREIs (PB-FREIs), a proposed solution to these limitations, is further investigated experimentally with nominal vertical tensile loads. It is shown that PB-FREIs can achieve similar properties to an unbonded FREI with a vertical compressive load.

Eco-Friendly Reinforced Composites Made from Tamarindus Indica with Epoxy and Bisphenol Resin

2020 ◽  
Vol 12 (2) ◽  
Author(s):  
G. Manikandan ◽  
V. Jaiganesh ◽  
R. Ravi Raja Malarvannan ◽  
M. Vinothkumar
Keyword(s):  
Natural Fiber ◽  
Natural Fibers ◽  
Future Generation ◽  
Extraction Process ◽  
Fiber Reinforced Composites ◽  
Experimental Investigations ◽  
Reinforced Composites ◽  
Tamarindus Indica ◽  
Fiber Reinforced ◽  
Load Carrying

For future generation, to keep the world green, the cognizance on natural fiber increases. The natural fiber-reinforced composites have an advantage of being lightweight, renewable, biodegradable, and cheap, eco-friendly. So there is a need to investigate the potential of natural fibers and their composites, which can be used in highly demanding situations. An attempt has been made in present work to explore the possible use of a variety of wild grown fibers in nature in the development of new composites for load carrying structures. This article is detailed about the extraction process of natural fibers and characterization of natural fiber-reinforced composites. The reinforced composites made by the use of Tamarindus Indica (Tamarind) fibers with epoxy and bisphenol resin. The experimental investigations of the natural fiber composites were carried out by means of Scanning Electron Microscope and the mechanical properties such as tensile, flexural, compression and hardness properties of the composites without chemically treated fibers were reported.

The Mechanical and Comfort Properties of Sustainable Blended Fabrics of Bamboo With Cotton and Regenerated Fibers

2018 ◽  
Vol 36 (4) ◽  
pp. 267-280 ◽  
Author(s):  
Abdul Basit ◽  
Wasif Latif ◽  
Sajjad Ahmad Baig ◽  
Ali Afzal
Keyword(s):  
Mechanical Properties ◽  
Thermal Comfort ◽  
Viscose Rayon ◽  
Woven Fabrics ◽  
Cellulosic Fibers ◽  
Bamboo Rayon ◽  
Regenerated Fibers ◽  
Lower Production ◽  
Rayon Fiber

The worldwide growing need of cotton but its lower production has boosted the production of regenerated cellulosic fibers. This work compares the thermal comfort and mechanical properties of bamboo rayon fiber blends with cotton and other regenerated fibers. So, bamboo rayon fibers were blended with cotton, tencel lyocell, modal rayon, and viscose rayon. One-hundred-percent pure fabrics of bamboo rayon, cotton, tencel lyocell, modal rayon, and viscose rayon were made. Also, 50:50 blends of bamboo rayon with cotton, tencel lyocell, modal rayon, and viscose rayon were prepared. Plain-woven fabrics were made by using yarns of 20 tex. The thermal comfort and mechanical properties were analyzed. It is found that 100% tencel lyocell fabrics give higher mechanical and comfort properties. Similarly, bamboo rayon:tencel lyocell (50:50)–blended fabric gives better thermal comfort and mechanical properties than bamboo rayon:cotton–, bamboo rayon:modal rayon–, and bamboo rayon:viscose rayon–blended fabrics.

Development of an Engineering Model for Predicting the Transverse Coefficients of Thermal Expansion of Unidirectional Fiber Reinforced Composites

2009 ◽  
Vol 131 (3) ◽  
Author(s):  
Chensong Dong
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Thermal Expansion ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Engineering Model ◽  
Element Analysis ◽  
Unidirectional Composites ◽  
Representative Unit Cell

The coefficients of thermal expansion (CTEs) of fiber reinforced composites play an important role in the design and analysis of composite structures. Since the thermal expansion coefficients of polymer matrix materials are typically much higher than those of fibers, and the fiber often exhibits anisotropic thermal and mechanical properties, the stress induced in the composite due to temperature change is very complex. Large discrepancies exist among the analytical models for the transverse CTE of unidirectional composites. Hence, it is problematic when choosing a suitable model. With the development of computer technologies, finite element analysis (FEA) proved its effectiveness in calculating the effective CTE of composites. In this study, the transverse CTEs of unidirectional carbon fiber composites were calculated by finite element analysis using a representative unit cell. The analytical micromechanical models from literature were compared against the FEA data. It shows that Hashin’s concentric cylinder model is the best. However, it is inconvenient for practical applications due to the amount of computation. In this study, based on the FEA data, an engineering model for predicting the transverse CTE of unidirectional composites was developed by regression analysis. This model was validated against the FEA and experimental data. It shows that the developed model provides a simple and accurate approach to calculate the transverse CTE of unidirectional composites.

Fire-Resistant Viscose Rayon Fiber Materials

2016 ◽  
Vol 48 (3) ◽  
pp. 217-223
Author(s):  
E. V. Bychkova ◽  
L. G. Panova
Keyword(s):  
Viscose Rayon ◽  
Fiber Materials ◽  
Rayon Fiber

Experimental Investigations on Integrated Conductor Paths in Fiber-Reinforced Thermoplastic Composite Structures

2017 ◽  
Vol 742 ◽  
pp. 793-799
Author(s):  
Tony Weber ◽  
Anja Winkler ◽  
Maik Gude
Keyword(s):  
Composite Structures ◽  
Construction Material ◽  
Functional Integration ◽  
Thermoplastic Composite ◽  
Experimental Investigations ◽  
Film Material ◽  
Fiber Reinforced ◽  
Forming Process ◽  
Sensors And Actuators ◽  
Definition Of

By the benefit of functional integration the advantages of fiber reinforced plastics (FRP) as construction material can be increased due to the possibilities of integrating sensors and actuators. In Regard to the layer-by-layer definition of the wall thickness, this class of material offers a high potential for the integration of additional smart elements within the stacking and forming process. In addition to the actual integration methods of sensors or actuators, the electrical signal transmission and contacting is of great importance for smart structures. Various approaches can be followed. On the one hand, the conductor path can be defined by means of a wire and, on the other hand, the definition of conductor paths can be accomplished by functionalized films (by means of printing technology). Within this paper, experimental investigations are intended to demonstrate the suitability of screen-printed conductor paths for the press-technical transformation of FRP structures. In addition to the variation of the screen printing material and the film material, for a material-homogeneous integration, an evaluation of a corresponding selection of materials takes place with respect to the stresses derived from the deformation-technical boundary conditions.

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