13 research outputs found

    Evaluation the Effect of Laminated Layer Sequence of Plain-Woven Bamboo on Tensile and Impact Performance of E-glass Woven / Epoxy Hybrid Composites

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    Bamboo reinforced hybrid composites are needed in claim to progress use of polymer composite technology. This paper describes a hand lay-up laminate process using plain-woven bamboo/E-glass woven/epoxy hybrid composite with the Design of experiment (DOE) 2 factor with 3- level and analysis of variance (ANOVA) was implemented for an evaluation against how the bamboo and e-glass woven affect the mechanical properties of hybrid composite in various sequence. The present study considers influence of plain-woven bamboo and e-glass woven laminated hybrid composite towards its tensile and charpy impact test performance. The results show that the 2-layer composites withstood better tensile strengths 185.372 MPa for EG/BW/EG while charpy impact 158.224 KJ/m2 for EG/BW sequence respectively. Experiments results show that concentrate on both lay-up sequence and layers are important effect factors for tensile and charpy performance. It had been proven that both the layers and also the lay-up sequence demonstrated significantly different leads to terms of the mechanical performance

    Line Balancing Analysis Of Tuner Product Manufacturing

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    The processing time and the number of operators have strong relationship with the productivity of production lines. In the tuner production line, three significant factors related to productivity through using of line balancing method are the number of operator, production tools/equipment, and production process. This study performed the line balancing method through simulation model in order to reduce the line unbalancing causes and relocate the workforce associated to idle time, eliminating the bottleneck, and at the same time maintaining/ improving the productivity. To analyze the production line, we use a develop simulation tool, called Fact-Model, to modeling the production line (with the graph of critical path network and working time) and the works estimated (related to the cycle time, takt time, non-value added activities, quantity, and cost). Fact-Model is facilitated with the features that enable the user to depict the real production flows by using their owned real pictures/photos taken into their simulation model

    Impact Behaviour of Laminated Bamboo, E-Glass and Hybrid Bamboo/E-Glass Fibre Composites

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    Natural fibres are currently used as a mutually reinforcing fibre foundation. One of their prospects, particularly that which is said to be good in mechanical reinforcement, is bamboo fiber. This study focuses on developing a high-quality bamboo that can withstand high load and high impact application, that utilize and promote green technology and local crops production of bamboo in Malaysia. The work scope was focusing on the impact performance of bamboo fiber as natural fiber, E Glass fiber as synthetic fibers, and combination of both bamboos with E Glass Fiber as hybrid composites. The developed laminated hybrid bamboo was hit by a hard object named impactor in the drop impact testing procedures. The analysis gives the sound of the impact properties that can be absorb with optimal load before the specimen penetrated or failures. Configuration of 6,12,18 layers of woven bamboo and 6,12,18 layers of woven E-Glass, in order of thicknesses 9 mm, 18 mm, 22 mm and 4 mm, 7 mm and 10 mm, respectively were fabricated by hand lay-up. The thickness of each and individual strips of woven bamboo and E-Glass used in the range of 1.5-2.5 mm thicknesses. The results showed that the impact performance of the hybrid bamboo/E-Glass had outperformed the non-hybrid bamboo/E-Glass. The developed hybrid bamboo composites show highly potential use for ballistic application in replacing metal armor

    Effect on Mechanical Properties of Hybrid Blended Coconut Coir/Paraffin Wax/LDPE

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    The use of natural fibers as the fillers for plastic has been rapidly expanding, especially wood fibers. This is due to materials of wood offers many advantages as inorganic fillers (such as low price, biodegradability, renewability, recycle-ability, low density and others). In addition, this is also due to the dramatic increasing of interest of using biomass materials as the replacements for glass fiber into reinforced thermoplastic composites. In this study, wood plastic composites used are the filled thermoplastics which primarily consisted of wood fiber and thermoplastic polymer. While, the purpose of this research is to find out the optimum conditions of the wax and coconut coir produced by inducing LDPE. The experiment carried out is by mixing the wax, coconut coir and LDPE into eight new polymer compositions, in which the higher value of the tensile strength and hardness are obtained by mixing between 6 wt. % coconut coir with 4 wt. % wax, rather than to pure LDPE, that is 9.236 MPa and 3HV. Although the strength impact is decreased with value as much as 60.95 % compared to original conditions, the SEM analysis proved that the composition of 90 wt. % LDPE, 4 wt. % wax and 6 wt. % coconut coir is the best weight ratios for mechanical characteristics and bonding between reinforced material and matrix material. Here, the LDPE, wax and coconut coir mixture produces a new hybrid polymer and alters the properties of pure LDPE

    Impact Behaviour of Laminated Bamboo, E-Glass and Hybrid Bamboo/E-Glass Fibre Composites

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    Natural fibres are currently used as a mutually reinforcing fibre foundation. One of their prospects, particularly that which is said to be good in mechanical reinforcement, is bamboo fiber. This study focuses on developing a high-quality bamboo that can withstand high load and high impact application, that utilize and promote green technology and local crops production of bamboo in Malaysia. The work scope was focusing on the impact performance of bamboo fiber as natural fiber, E Glass fiber as synthetic fibers, and combination of both bamboos with E Glass Fiber as hybrid composites. The developed laminated hybrid bamboo was hit by a hard object named impactor in the drop impact testing procedures. The analysis gives the sound of the impact properties that can be absorb with optimal load before the specimen penetrated or failures. Configuration of 6,12,18 layers of woven bamboo and 6,12,18 layers of woven E-Glass, in order of thicknesses 9 mm, 18 mm, 22 mm and 4 mm, 7 mm and 10 mm, respectively were fabricated by hand lay-up. The thickness of each and individual strips of woven bamboo and E-Glass used in the range of 1.5-2.5 mm thicknesses. The results showed that the impact performance of the hybrid bamboo/E-Glass had outperformed the non-hybrid bamboo/E-Glass. The developed hybrid bamboo composites show highly potential use for ballistic application in replacing metal armor

    Mechanical properties of layered laminated woven bamboo gigantochloa scortechinii/epoxy composites

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    This study investigated the application of bamboo as a natural composite, in which its potential as a composite material had been examined for 2–6 layers. In precise, the woven bamboo (BW) formed the culm fiber composite with an average of 0.5 mm thickness and 5.0 mm width strip. In addition, this study looked into a specific type of bamboo species known as Gigantochloa Scortechinii (Buluh Semantan), which can be found in Malaysia. This laminated plain BW, which had been reinforced with epoxy (EP), was developed by applying the hand lay-up technique. After that, the specimens were characterized via mechanical analyses, for instance, tensile, flexural, hardness, and impact tests. As a result, the 2-layer BW had displayed rather excellent results chiefly due to the incorporation of epoxy composite, although this is exceptional hardness value

    Mechanical Properties of Kenaf/Polyester Composites

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    In this study, the reinforced kenaf fibers using polyester resin composites were processed through vacuum infusion method. Before infusion and reinforced applied, the long kenaf fibers were treated by various concentration of sodium hydroxide(NaOH). The effects of the modification on fiber and also the effect of fiber alkalization on composites then is analyzed for mechanical properties and by using the scanning electron microscopy (SEM). The results showed that the alkalization treatment has improved the mechanical properties of the composites as compared to the composites with untreated kenaf fiber. In addition, a general trend of the mechanical performances of alkalized kenaf fiber composites observed showed increase with the increments of NaOH concentration. In this study, the vacuum infusion method used also offers benefits over hand lay-up method due to the better fiber to resin ratio that resulting in stronger and lighter laminates. By vacuum infusion process, the kenaf-polyester composite manufactured provides an opportunity for replacing the existing materials with a higher strength, low cost alternatives, and environmental friendl

    The Influence of Laminated Layer and Thickness Gigantochloa Scortechinii Bamboo Strips on Mechanical Performance of Unsaturated Polyester Composites

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    Abstract: In this study, several types of Gigantochloa scortechinii bamboo strips were used as fillers in an unsaturated polyester matrix and characterized in term of their tensile and flexural properties. The strips were formed with the culm fiber composite with inner-to-outer layer thicknesses of 1.5 mm, 2.0 mm, and 2.5 mm. The laminated bamboo strips composites were developed using the hand lay-up technique. The analysis was carried out using a 2-factor, 3-level design of experiment (DOE) and an analysis of variance (ANOVA) to determine how the layer strip and the thickness of the bamboo affected the mechanical properties of the composites. It was proven that both the bamboo layer and the thickness demonstrated significantly different results in terms of the tensile and flexural performance. The overall results indicated that the middle layer of the laminated composite exhibited the highest tensile and flexural strength

    An Analysis and Development of Recycled Materials for Wood Plastic Composite Product

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    This study is to find out the best optimum ratio of the mixed waste materials of high-density polyethylene and wood’s flour by comparing the mechanical properties of recycled product (WPC). In this study, the fabrication process of wood plastic composite (WPC) contained of virgin material, post-consumer high-density polyethylene, and wood’s flour is through a twin-screw extruder and hot compression machine. The WPC product with four different ratio filler content based on weight percentage, i.e. 0 wt %, 20 wt %, 30 wt % and 40 wt % , were tested using universal tensile machine and impact tester according to ASTM D 3039, ASTM D 790, and ASTM D 6110 . The results of experiment showed that tensile and flexural properties of the composite increased with the adding of the wood’s flour material. The testing showed, however, totally opposite to the result of the impact test. In overall, the results of observations showed that recycled WPC have better mechanical properties compared to non-recycled WPC
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