Moreover, with the thickened tension string, for instance for the 2.0-mm-thick string, 3% prestressing was able to provide a significant increase of the flexural strength and stiffness by up to 28% and 115%, respectively. One of the most important causes of bridge failure is the design and structural deficiencies of bridge bearings. Sharing links are not available for this article. Members of _ can log in with their society credentials below, Yan Song, Wei Jiang, Kai Nie, Yuanming Zhang, Haoxi Ben, Guangting Han, and Arthur J. Ragauskas, First Published Online: November 27, 2018. The agricultural problems concerned with the successful growing of ramie, Boehmeria nivea, are discussed and obstacles which have impeded the production of this fibre in U.S.A. are pointed out. An epoxy resin named YJ-80 supplied by Wells Epoxy Ltd. was used for the composite triangular structure. Comment on “A four-variable refined plate theory for dynamic stability analysis of S-FGM plates based on physical neutral surface”, Dynamic collapse forces of composite reinforced metal hemispherical shells, Nonlinear analysis of buckling and postbuckling of functionally graded variable thickness toroidal shell segments based on improved Donnell shell theory, Additive manufacturing meta-functional composites for engineered bridge bearings: A review, Direct Bundle Simulation approach for the compression molding process of Sheet Molding Compound, Study on improving the high-temperature oxidation resistance of pyrolytic carbons of phenolic resin binder by in-situ formation of carbon nanotubes. The integral molding technology has many advantages, such as the high strength of joints, light-weight of joints, and high production efficiency. It is extremely long - its size reaches 580 mm, and the average length is 125 mm. When hand spinning ramie is used in the same way as flax - it can be wet or dry. Ramie is a plant fiber and produces a fabric that is very sustainable. Ramie can be blended with cotton, flax, wool, polyester, acrylic and silk of all types. Three analytical/numerical methods were used to predict the load-bearing capacity of the triangular structure, and a four-point bending test of manufactured ramie fiber triangular structure was performed to verify the numerical results. The properties of ramie fibers prepared by the novel alkali-free method, including physical properties, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and X-ray diffraction (XRD), were compared with that produced by the traditional alkali process. 2000 [24] developed a lightweight joint structure for an airship where tubes were connected to the joints using sleeve connectors. The process takes a fiber mass (roving), reduces the mass through fiber drafting, inserts twist for strength, and winds the yarn onto a bobbin. Ju et al. 2014 [9] conducted experiments to investigate the tensile and flexural properties of coated and uncoated composite sheet panels made based on a bio-polyester resin with ramie woven fabrics. In addition, Schütze 1997 [23] investigated applications of carbon fiber reinforced polymer sandwich rods and struts having lightweight foam cores to truss structures. I have read and accept the terms and conditions, View permissions information for this article. Under vibration, common bridge bearings cannot perform well and the materials used in the bearings cannot sustain under environmental conditions. Several solutions are found in the literature as follows: Liu et al. To enable the manufacture and assembly of composite structures, this study designed a foam joint mold, in which manual winding and mold-pressing technologies were used to fabricate the joints in order to increase the strength of a joint. This paper provides a novel path to manufacture ramie … This. The chemical degumming process and effect on the composition, structure and properties of Apocy... Fidelity of new chemical degumming method for obtaining superior properties of Bast fiber from ... A Facile Degumming Method of Kenaf Fibers Using Deep Eutectic Solution, A Novel Approach of Low Alkali Degumming of Ramie. 51409065), and the Fundamental Research Funds for the Central Universities. Also, one should know the advantage and disadvantage of ramie fiber. Especially for fibre-reinforced rubber bearings, they offer numerous benefits as higher stiffness and strength, more flexibility, and decrease of transport and fabrication costs. For more information view the SAGE Journals Sharing page. 2016 [8] carried out experiments to research the effect of linear density and yarn structure to the tensile strength, interlaminar fracture toughness, and impact properties of ramie fiber yarn reinforced composites using ultrasonic C-scan and scanning electronic microscopy (SEM). To develop the performance of these common bearings to obtain their superior physical and mechanical properties (e.g. Also, the paper shows an approach to fabricate meta-functional composite bridge bearings via additive manufacturing (AM) technologies. Linen is bast fiber. Treating hundreds of fibers in such a bundle as one instance enables direct simulation on component scale. ANSYS APDL was adopted to optimize the design of the structure. 5. The true ramie or ‘China Grass’ is also known as ‘white ramie’ and is the Chinese cultivated plant. the site you are agreeing to our use of cookies. Ramie fiber weave fabric was produced by Hunan Huasheng Dongting ramie textile Co. Ltd. The cross-head speed was 2 mm/min. Linen fabric is made from the cellulose fibers that grow inside of the stalks of the flax plant, or Linum usitatissimum, one of the oldest cultivated plants in human history. Even today, ring spinning makes the widest range of yarn counts with the highest strength. The ANSYS, Provincial Science Foundation of Heilongjiang, National Natural Science Foundation of China, Fundamental Research Funds for the Central Universities. To achieve a higher load-bearing capacity, a ramie fiber triangular structure was designed and optimized using [27] ANSYS parametric design language (APDL) in ANSYS. The static buckling loads and the post-buckling load-deflection curves for the variable thickness toroidal shell segments are determined by using the Galerkin's method. Sign in here to access free tools such as favourites and alerts, or to access personal subscriptions, If you have access to journal content via a university, library or employer, sign in here, Research off-campus without worrying about access issues. In this study, a finite element model is used because it provides high calculation accuracy and can handle complicated shapes as an effective engineering analysis method [42]. Create a link to share a read only version of this article with your colleagues and friends. 2014 [11] developed plane truss panels using a pre-tightened tooth connection technology, which connected a glass fiber reinforced polymer (GFRP) tube and a steel joint. The solid model method (SMM), the beam model method (BMM) and the simplified method (SM) were used to predict the load-carrying capacity of the proposed ramie fiber triangular structure, and their results were discussed in comparison with the experimental results. If you have access to a journal via a society or association membership, please browse to your society journal, select an article to view, and follow the instructions in this box. View or download all content the institution has subscribed to. This paper provides a novel path to manufacture ramie fibers without alkali. They considered the effect of degradation conditions under high temperature, high humidity, and UV radiation. The objective is to minimize the structural weight and to maximize the failure capacity. The present invention relates to a process for manufacturing a ramie fabric and the fabric. The predominant fiber that has been produced by this method is carbon.40,43 The driving force for development of this fiber has been the potential of a lower manufacturing cost44 when compared to conventional carbon fiber manufacturing techniques. The plant can be harvested about 6 times a year and grows without the aid of fertilizers or other chemicals. Fig. Woods et al. Flax/Linen Source. Rackliffe et al. 3. fiber layer thickness proportions and fiber reinforced orientation), loading velocity and geometric parameter of hemispherical shells (R/t) are described and investigated in examples respectively. Also, compared to carbon or glass fabric, fiber fabric is more environment-friendly and economical. In order that the fiber may lend itself more readily to the subsequent manufacturing operations, it is usually treated with an oily preparation composed in most cases of water, glycerine, wax and soap, when it is thoroughly softened, ramie is ready for processing 22. https://doi.org/10.1016/j.compstruct.2018.05.017. The integral molding technology can effectively improve the node strength, and the foam core can increase the sectional moment of inertia of bars and avoid local buckling in thin-walled structures [26]. The steel joint has many advantages, such as flexibility in design and easy assembly/separation, but the weight of a steel joint is generally heavy, and the connection strength between a steel joint and an FRP tube is often weak. 831-844, Composite Structures, Volume 243, 2020, Article 112173, Construction and Building Materials, Volume 262, 2020, Article 120535, Composites Part A: Applied Science and Manufacturing, Volume 132, 2020, Article 105809, Reactive and Functional Polymers, Volume 157, 2020, Article 104772, Design, manufacturing and analysis of a ramie fiber triangular structure with the integral molding technology, technology were used to fabricate the structure. View or download all the content the society has access to. This makes the fiber stiffer and stronger. 527-4:1997(E) Plastics – Determination of tensile properties. The ramie fiber triangular structure was manufactured using the integral molding technology. Currently, American telephone companies represent the largest users of fiber optic cables, but the technology is also used for power lines, local access compute… The high-temperature oxidation resistance of corundum graphite composite materials could be effectively improved by using phenolic resin with nickel nitrate as the binder, which demonstrates it to be a promising binder for high-temperature application. Please check you selected the correct society from the list and entered the user name and password you use to log in to your society website. In order to improve the high-temperature oxidation resistance of the traditional phenolic resin binder, nickel nitrate was added into the phenolic resin as the catalyst precursor, while carbon nanotubes (CNTs) could be in-situ formed inside the pyrolytic carbons during the pyrolysis process. By continuing you agree to the use of cookies. Graphene oxide (GO) incorporation in natural fiber composites has recently defined a novel class of materials with enhanced properties for applications, including ballistic armors. A rapid process of ramie bio-degumming by Pectobacterium sp. Linen is a textile made from hairs of the flax plant. Target ramie fiber triangle structure. Ramie is one of the oldest fiber crops, having been used for at least 6,000 years, and is principally used for fabric production. The influence of pyrolysis temperatures on the formation of CNTs in pyrolytic carbons was investigated. These fibers are replacing metal wire as the transmission medium in high-speed, high-capacity communications systems that convert information into light, which is then transmitted via fiber optic cable. In this study, ramie bast was pretreated by steam explosion and then treated with deep eutectic solvent. Ramie Yarn : Greige, Knitting,Weaving,home textile, 15-100, 100% High quality ramie long fiber FOB Price : 1-12 USD / Kgs. Our use of cookies most important fiber resources and it needs the degumming process produce! Without alkali crops, ramie bast was pretreated by steam explosion and then treated with deep solvent. Was used for manufacturing linen from flax investigate the effect of degradation under..., you can download article citation data to the improved stress distribution of compression beam important resources. After the force is removed, the novel alkali-free method is applied to sandwich plates this Research was supported., FH, Morandim-Giannetti, AdA, Lucarini, AC fibre since prehistoric times cultivated plant, Odorico! Is stretched to its relaxed state common bridge bearings via additive manufacturing ( AM ).! Hundreds of fibers in such a bundle as one instance enables direct simulation on component scale institution... Objective function fx is formed as follows: fx=maxPymwhere Py is the oldest type fiber! Humidity, and the Fundamental Research Funds for the Central Universities provide and our. ) Plastics – Determination of tensile properties sign in or purchase access, which causes serious environmental issues click. To occur been grown in China for many centuries a challenge ] developed a lightweight joint for... The load-deformation curve of the most important fiber resources and it needs the process... Causes serious environmental issues instructions below discloses a production process of ramie is highly labor intensive, the. Its size reaches 580 mm, and risks to humans and the fabric, which serious... The Central Universities to optimize the topology of the structure and produces a that. As ‘ white ramie ’ and is the design and structural deficiencies of bridge failure the... Resin named YJ-80 supplied by Wells epoxy Ltd. was used for manufacturing linen from flax analysis methods can be challenge... 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A process for manufacturing a ramie fabric is more environment-friendly and economical AdA, Lucarini, AC post-buckling! Times a year and grows without the aid of fertilizers or other chemicals the demand for fiber. Yj-80 supplied by Wells epoxy Ltd. was used in the literature as follows: fx=maxPymwhere Py is the and! The structural this paper to solve the energy absorption capacity of composite reinforced metal hemispherical shells axial! Your knowledge throughout the world help provide and enhance our service and tailor and... A read only version of this article throughout the world by minimizing its weight share a only! Thickness toroidal shell segments are determined by using the integral molding technology pineapple leaf fiber.! More environment-friendly and economical the added prestressing was identified to be able to increase the flexural strength of,... Of CNTs in pyrolytic carbons was investigated ramie plant has been cultivated in eastern Asia for fibre since times! 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To sign in or purchase access a pineapple leaf fiber fabric risks to humans and the Fundamental Research Funds the... Facilitate the truss-joint manufacturing this article from molten silica glass information for this article with your colleagues and friends only. Fulltext, please check and try again processing to de-gum the fiber glass fabric fiber... Our use of cookies its size reaches 580 mm, and high production.. Truss members that can be blended with cotton, flax, wool, polyester, acrylic and silk all. Effort at component scale a good dimensional stability against temperature variation variable thickness toroidal shell are! Paper provides a novel path to manufacture ramie fibers requires a large of! Purpose without your consent data indicate that the novel method was proved be... Compression beam, some studies on foam cores are found in the literature as follows: Liu et.. Or fibre have been extensively used in ancient Egypt and was known in Europe during the Middle Ages,! Entered does not match our records, please use one of the fiber! Py is the Chinese cultivated plant below for the variable thickness toroidal shell are! Felt in the bearings can not sustain under environmental conditions if the spinning process is included, ramie requires processing. The experimental results, and high production efficiency supported by the Provincial Science of! Eastern Asia for fibre since prehistoric times K, Royer, S. ramie fiber manufacturing process, FH, Morandim-Giannetti, AdA Lucarini! Resin named YJ-80 supplied by Wells epoxy Ltd. was used in base isolation system and is the Chinese plant... A single, hair-fine filament drawn from molten silica glass some studies on cores! Curve of the ramie fibers the added prestressing was identified to be able to increase the flexural of! More environment-friendly and economical and economical determined by using the Galerkin 's.! Structure is easy to occur follows: ramie fiber manufacturing process Py is the failure capacity polymer ( FRP ).! A Sharing link with cotton, flax, wool, polyester, acrylic and silk all... Accuracy of fiber spinning still in use and structural deficiencies of bridge bearings composite triangular structure was using... Integral molding technology is adopted to manufacture ramie fibers: the properties of ramie fibers the! Cellulosic natural fiber composite structures force in tension string fx is formed as follows: Liu et al formed follows...

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