Modeling tensile behavior of 3D orthogonal woven green composites considering variability of natural fibers

2021 ◽  
pp. 1-11
Author(s):  
Hadir Eldeeb ◽  
Mohamad Midani ◽  
Abdel-Fattah M. Seyam
Keyword(s):  
Natural Fibers ◽  
Tensile Behavior ◽  
Green Composites ◽  
3D Orthogonal Woven

scholarly journals Tensile Behavior and Diffusion of Moisture through Flax Fibers by Desorption Method

2019 ◽  
Vol 11 (13) ◽  
pp. 3558 ◽  
Author(s):  
Swarda S. Radkar ◽  
Ali Amiri ◽  
Chad A. Ulven
Keyword(s):  
Diffusion Coefficients ◽  
Natural Fibers ◽  
Woven Fabrics ◽  
Tensile Behavior ◽  
Flax Fiber ◽  
Additional Absorption ◽  
Flax Fibers ◽  
Diffusion Rates ◽  
Desorption Method ◽  
And Diffusion

There has been a substantial increase in the usage of natural fibers and biodegradable polymers in composite materials due to the recent focus on sustainability of materials. Flax fibers have exhibited higher mechanical properties compared to most other natural fibers available. However, one of the major challenges faced in the use of flax fiber is its hydrophilicity. In this study, the tensile behavior of flax fiber tows removed from commercially available woven fabrics were investigated at different moisture levels. The breaking tenacity of fiber tows was shown to increase with an increase in moisture content of up to 25%. After this point, additional absorption of moisture resulted in a decrease of fiber tenacity. In addition, the diffusion process through flax fiber mat with different areal densities was investigated and the diffusion coefficients were determined using the desorption curves. Diffusion rates were not found to significantly change with varying areal densities of 200 to 400 gsm, but were significantly different when exposed to temperatures of 55 °C versus 80 °C.

Green composites: A review of processing technologies and recent applications

2018 ◽  
Vol 33 (8) ◽  
pp. 1145-1171 ◽  
Author(s):  
Guravtar Singh Mann ◽  
Lakhwinder Pal Singh ◽  
Pramod Kumar ◽  
Sunpreet Singh
Keyword(s):  
Composite Materials ◽  
Fiber Composite ◽  
Natural Fibers ◽  
Review Article ◽  
Synthetic Fiber ◽  
Green Composites ◽  
View Point ◽  
Processing Technologies ◽  
Processing Techniques ◽  
Young Researchers

Biocomposites are considered as the next-generation materials as these can be made using natural/green ingredients to offer sustainability, eco-efficiency, and green chemistry. Nowadays, biocomposites are being utilized by numerous sectors, which include automobile, biomedical, energy, toys, sports, and so on. In this review article, an effort has been made to provide a comprehensive assessment of the available green composites and their commonly used processing technologies for the sake of materials’ capabilities to meet up with demands of the present and forthcoming future. Various types of natural fibers have been investigated with polymer matrixes for the production of composite materials that are at par with the synthetic fiber composite. This review article also highlights the requirements of the green composites in various applications with a view point of variability of fibers available and their processing techniques. This review is specially done to strengthen the knowledge bank of the young researchers working in this field.

scholarly journals BAMBOO FIBER REINFORCED BINDERLESS GREEN COMPOSITES FROM STEAM-EXPLODED BAMBOO POWDER

2012 ◽  
Vol 06 ◽  
pp. 739-744
Author(s):  
HITOSHI TAKAGI ◽  
GOSHI TAKEICHI
Keyword(s):  
Tensile Strength ◽  
Tensile Behavior ◽  
Bamboo Fiber ◽  
Green Composites ◽  
Fiber Reinforced ◽  
Green Composite ◽  
Molding Temperature ◽  
Adhesion Behavior ◽  
Molding Condition ◽  
Bamboo Powder

In this paper, we attempted to prepare the binderless green composite using bamboo fiber and steam-exploded bamboo powder as matrix. The influence of molding conditions on their tensile behavior was investigated by changing the molding temperature, pressure and time. Except for the composites molded at low temperatures from 100°C to 120°C, their tensile strength decreased with increasing the molding temperature. When the molding time increased, their tensile strength decreased. Average tensile strength of the binderless bamboo green composite molded at 120°C and 10 MPa for 10 min was 170 MPa. The decreases in tensile strength of binderless composites molded at temperatures higher than 120°C may be responsible for the strength drop of the reinforcing bamboo fiber derived from thermal decomposition. In order to obtain detailed information about the adhesion behavior of bamboo powder and bamboo fiber, photomicrographs were taken of the fracture surfaces of the composites. The results show that molding condition, especially molding temperature, has a great effect on the mechanical properties of bamboo fiber reinforced binderless green composites.

Tensile Behavior of Epoxy Composites Reinforced with Thinner Sisal Fibers

2016 ◽  
Vol 869 ◽  
pp. 249-254
Author(s):  
Lazaro Araújo Rohen ◽  
Anna Carolina Cerqueira Neves ◽  
Frederico Muylaert Margem ◽  
Carlos Maurício Fontes Vieira ◽  
Fabio de Oliveira Braga ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Elastic Modulus ◽  
Polymer Matrix Composites ◽  
Low Cost ◽  
Natural Fibers ◽  
Tensile Behavior ◽  
Epoxy Composites ◽  
Matrix Composites ◽  
Synthetic Fibers ◽  
Sisal Fibers

The use of natural fibers as reinforcement in polymer matrix composites is replacing the use of synthetic fibers, especially from an environmental standpoint. Indeed, natural fibers are biodegradable and renewable, with no aggression to the environment. Moreover, they are worldwide abundant with relatively low cost. It was found that fine fibers of sisal, with the thinnest diameters can achieve tensile strength on the order of 1000 MPa. In this work, tensile specimens were prepared with 30% in volume of sisal fibers with diameters between 0.1 and 0.10mm incorporated in a continuous and aligned way into epoxy matrix. The results showed a significant increase in tensile strength and elastic modulus of the composites as a function of the incorporated amount of thinner sisal fibers.

scholarly journals Effect of Volume Fraction and Heating Temperature on Hybrid Natural Fibre Composites Developed Through the Die Moulding Process

2019 ◽  
Vol 9 (1) ◽  
pp. 2988-2994
Keyword(s):  
Volume Fraction ◽  
Heating Temperature ◽  
Matrix Material ◽  
Natural Fibers ◽  
Natural Fibre ◽  
Sisal Fiber ◽  
Green Composites ◽  
Moulding Process ◽  
Fibre Composites ◽  
Scanning Electron

Green composites are the materials which are made up of natural fibers and biodegradable matrix materials, which have the ability to replace the non-biodegradable, petroleumbased products. In this study, the focus is to develop the fully biodegradable green composites in which matrix material is selected as Polylactic Acid (PLA) reinforcement with jute and sisal fiber using hand layup followed by a compression molding technique. Composites are developed with different volume fraction from 25% to 50% and different temperature from 165°C to 195°C. Furthermore, the study of the failure mechanism of the tested specimens will be done with the help of a scanning electron microscope (SEM).

Green Composites and Their Properties

2016 ◽  
pp. 148-164 ◽  
Author(s):  
Deepak Verma ◽  
Prakash Chandra Gope ◽  
Xiaolei Zhang ◽  
Siddharth Jain ◽  
Rajneesh Dabral
Keyword(s):  
Polymer Composites ◽  
Polymeric Material ◽  
Biodegradable Polymer ◽  
Fiber Composite ◽  
Natural Fibers ◽  
Important Class ◽  
Green Composites ◽  
Environment Friendly ◽  
Environmental Friendly ◽  
Enhanced Properties

Green composites are important class of biocomposites widely explored due to their enhanced properties. The biodegradable polymeric material is reinforced with natural fibers to form a composite that is eco-friendly and environment sustainable. The green composites have potential to attract the traditional petroleum-based composites which are toxic and nonbiodegradable. The green composites eliminate the traditional materials such as steel and wood with biodegradable polymer composites. The degradable and environment-friendly green composites were prepared by various fabrication techniques. The various properties of different fiber composite were studied as reinforcement for fully biodegradable and environmental-friendly green composites.

Numerical Simulation of Tensile Behavior of 3D Orthogonal Woven Composites

2018 ◽  
Vol 19 (3) ◽  
pp. 641-647 ◽  
Author(s):  
Xiaori Yang ◽  
Xiaoping Gao ◽  
Yayun Ma
Keyword(s):  
Numerical Simulation ◽  
Tensile Behavior ◽  
Woven Composites ◽  
3D Orthogonal Woven

Influence of Alkali Treatment on Mechanical Properties of Poly Lactic Acid Bamboo Fiber Green Composites

2015 ◽  
Vol 1110 ◽  
pp. 56-59 ◽  
Author(s):  
Shoma Maruyama ◽  
Hitoshi Takagi ◽  
Yoshitoshi Nakamura ◽  
Antonio Norio Nakagaito ◽  
Chizuru Sasaki
Keyword(s):  
Corn Starch ◽  
Alkali Treatment ◽  
Natural Fibers ◽  
Bamboo Fiber ◽  
Poly Lactic Acid ◽  
Green Composites ◽  
Pressing Method ◽  
The Matrix ◽  
Materials Research ◽  
Bamboo Fibers

In recent years, in order to reduce the environmental burden of composite materials, research has been conducted to develop composites made from plant-derived polymers and natural fibers, the so called green composites. In this study, green composites were made from polylactic acid (PLA), a bioplastic derived from corn starch, reinforced with bamboo fibers. The composites were manufactured by mixing short bamboo fibers and dispersion-type PLA resin. Subsequently, PLA/bamboo fiber sheets were molded by a hot pressing method. In order to improve the adhesion at the matrix/fiber interface and to obtain uniformly dispersed bamboo fibers in PLA matrix, the bamboo fibers were treated by alkali solution. It was found that the composites reinforced by alkali-treated bamboo fibers have higher strength than those based on untreated ones. Bamboo fibers were uniformly dispersed in PLA matrix with improved interfacial adhesion as lignin in bamboo fibers were removed by the alkali treatment. It was concluded that alkali treatment was an effective method for improvement of interfacial matrix/fiber adhesion in PLA/bamboo fiber-reinforced green composites.

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