scholarly journals ANALISIS SIFAT KEKUATAN TARIK DAN KEKUATAN BENDING KOMPOSIT HIBRYD SERAT LIDAH MERTUA DAN KARUNG GONI DENGAN FILLER ABU SEKAM PADI 5% BERMATRIK EPOXY

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Jauhari Muslim ◽  
Nasmi Herlina Sari ◽  
Emmy Dyah Sulistyowati
Keyword(s):  
Tensile Strength ◽  
Tensile Test ◽  
Rice Husk ◽  
Manufacturing Industry ◽  
Bending Strength ◽  
Rice Husk Ash ◽  
Volume Fraction ◽  
Hybrid Composites ◽  
Bending Test ◽  
Fiber Volume

Abstract The use of composite materials is growing at over the development of manufacturing industry. Composites sansevieria and hibiscus canabinus with the addition of rice husk ash filler. The purpose of this study was to analyze the tensile strength and bending strength of hybrid composites sansevieria and hybiscus canabinus with rice husk ash filler epoxy bermatrik with random fiber direction.Variation of fiber volume fraction sansevieria and hybicus canabinus is 0%:35%,10%:25%, 15%:10%, 20%:15%, 25%:10%, 35%:0%. Method for making composite specimens in the form of hand lay up with a fiber length of 2cm. Testing was done by bending test following the ASTM standard D790 tensile test and ASTM D3039 standards.The results showed that the composites with rice husk ash fillers higher bending strength and the strength of its appeal compared to the composite without using rice husk ash fillers, where the highest bending strength on volume fraction 0%/35% as big as 32,00 MPa (using filler), and kekutan lowest bending the volume fraction 0%/35% as big as 21, 69 Mpa (without filler). While the tensile test has the highest power in the volume fraction 15%/20% as big as 8,24 MPa (using filler), and the lowest tensile strength on volume fraction 0%/35%  as big as 3,43 MPa (without filler).

scholarly journals Study Kekuatan Bending Dan Struktur Mikro Komposit Polyethylene Yang Diperkuat Oleh Hybrid Serat Sisal Dan Karung Goni

2012 ◽  
Vol 2 (2) ◽  
Author(s):  
I Gede Widiartha ◽  
Nasmi Herlina Sari ◽  
S. Sujita
Keyword(s):  
Fiber Orientation ◽  
Fiber Volume Fraction ◽  
Bending Strength ◽  
Volume Fraction ◽  
Hybrid Composites ◽  
Volume Ratio ◽  
Bending Test ◽  
Sisal Fiber ◽  
Fiber Volume ◽  
High Fiber

AbstractThe purpose of this study is to investigate and study the mechanical properties of polyethylene strukrur micro hybrid composites reinforced by fibers sisal and jute sacks.Preparation of composites by hand lay-up method with a ratio of fiber volume fraction of sisal and jute sacks 30%: 0%, 20%: 10%, 15%: 15%, 10%: 20%, 0%: 30%. With unidirectional sisal fiber orientation and fiber length random burlap gunny sack fibers 2 cm. Specimen testing is performed with a standard bending test ASTM D790, and microstructure.Test results obtained from the average bending strength of composites with high fiber volume ratio fraksin 30%: 0% is 74.43 Mpa. While the lowest average for bending strength found in composites with fiber volume fraction of 0%: 30%, the bending strength of 32.21 MPa. Therefore we can conclude the increasing volume fraction of sisal fiber with unidirectional fiber orientation, the higher the bending strength of its appeal and reverse the growing volume of burlap fibers with random orientation of the fibers feeding the lower the bending strength and the strength.

scholarly journals KARAKTERISTIK SIFAT MEKANIK KOMPOSIT SERAT BAMBU RESIN POLYESTER TAK JENUH DENGAN FILLER PARTIKEL SEKAM

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Agus Budiman ◽  
Sugiman Sugiman
Keyword(s):  
Tensile Strength ◽  
Rice Husk ◽  
Bending Strength ◽  
Volume Fraction ◽  
Unsaturated Polyester ◽  
Bamboo Fiber ◽  
Bending Test ◽  
Bending Modulus ◽  
Bamboo Fibers ◽  
The Impact

This paper presents the effect of volume fraction of rice husks on the mechanical properties of bamboo fiber/unsaturated polyester composites. The composite specimens were made from bamboo fiber with fixed volume fraction of 40% and rice husk particle as filler with volume fractions varied 0%, 10%, 20% and 30%. Matrix used was unsaturated polyester resin. Bamboo fibers and rice husk were surface treated using alkali solution 4% (by weight) for 2 hours. The manufacturing process of composite was using hand layup method. The specimens were tested in tension, bending and in impact loading. The results show that the addition of rice husk particles up to volume fraction of 20% does not result in a decrease of tensile strength, but after a volume fraction of 20%, the tensile strength tends to decrease. In bending test, the rice husk volume fraction up to 20% increase the bending strength, but after that then it tends to decrease. However the bending modulus seems unaffected by the volume fraction of rice husk. Similar to the bending modulus, the impact strength is not significantly affected by the volume fraction of rice husk.

scholarly journals ANALISA KEKUATAN BENDING KOMPOSIT EPOXY DENGAN PENGUATAN SERAT NILON

2011 ◽  
Vol 1 (1) ◽  
Author(s):  
Nasmi Herlina Sari ◽  
S. Sinarep
Keyword(s):  
Modulus Of Elasticity ◽  
Bending Strength ◽  
Volume Fraction ◽  
Fiber Composite ◽  
Standard Test ◽  
Bending Test ◽  
Test Machine ◽  
Test Results ◽  
Fiber Volume ◽  
Nylon Fiber

The development of composite materials in the field of engineering is increasingly being used. This is because of its properties are superior compared to conventional materials, as the ratio between strength and density are quite high, stiff, the manufacturing process is very simple and resistant to corrosion and fatigue loads. The purpose of this study was to determine the effect the addition of nylon fibers with Epoxy Matrix on the increase in bending strength of epoxy composites.  The objected of this study was the composite of nylon fiber, which is cut 12 mm nylon fiber with epoxy resin as a fastening material. Before performing an experiment testing the tensile fibers has done and known to the stress of 461.22 MPa. There are 3 variations of volume fraction In this experiment, those are volume fraction of 40%, 50%  and  60%, with 3 variation each.  Method in the manufacture of specimens with the way the mould press. Tools to test the specimen is bending test machine (servopulser). Specimens using a standard test of ASTM C 393-94. Bending test results showed that the nylon fiber composite with fiber volume fraction 40% stress of 787.16 MPa, modulus of elasticity of 1.06 GPa, volume fraction of 50% the stress of 902.01 MPa, modulus of elasticity of 1.08 GPa, and for 60% volume fraction of the stress of 950.02 MPa, modulus of elasticity of 0.99 GPa.

scholarly journals Biokomposit Limbah Plastik Polypropylene Berpenguat Serat Lidah Mertua: Proses Ekstraksi dan Kekuatan Mekanis

Jurnal METTEK ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 128
Author(s):  
I Putu Lokantara ◽  
Ngakan Putu Gede Suardana
Keyword(s):  
Tensile Strength ◽  
Tensile Testing ◽  
Bending Strength ◽  
Volume Fraction ◽  
Bending Test ◽  
Test Results ◽  
Hot Press ◽  
Soaking Time ◽  
Recycled Polypropylene ◽  
The Matrix

Tujuan dari penelitian ini adalah untuk menentukan kekuatan tarik dan kekuatan bending biokomposit limbah plastik polypropylene berpenguat serat lidah mertua. Lidah mertua yang digunakan adalah lidah mertua yang pinggirannya daunnya kuning dengan usia yang seragam. Daun lidah mertua direndam dengan metode water retting selama 7 hari dan proses ekstraksi serat dilakukan secara manual. Polypropylene daur ulang yang digunakan berasal dari limbah plastik minuman gelas. Perlakuan kimia serat lidah mertua dengan konsentrasi 5% NaOH dan waktu perendaman 2 jam. Komposit dicetak dengan menggunakan press panas dengan suhu 200oC dan waktu penahanan 2 jam. Komposit dilakukan pengujian tarik dengan menggunakan ASTM D-570 dan uji bending dengan ASTM 790-03. Hasil uji tarik menunjukkan bahwa kekuatan tarik tertinggi pada fraksi volume 35% sebesar 71,606 MPa. Kekuatan tarik meningkat sebesar 28,9% dari fraksi volume 25% ke fraksi volume 35%.  Hasil uji bending menunjukkan bahwa kekuatan bending tertinggi pada fraksi volume 35% sebesar 74,55 MPa. Kekuatan bending meningkat sebesar 22,9% dari fraksi volume 25% ke fraksi volume 35%. Dengan pengamatan foto mikro SEM, ikatan adhesi antara serat dan matrik terjadi dengan baik pada fraksi volume 35%.      The purpose of this study was to determine the tensile strength and bending strength of lidah mertua fiber reinforced polypropylene. Lidah mertua is used whose leaf margins are yellow with a uniform age. Lidah mertua leaves were soaked by water retting method for 7 days. Fiber is extracted manually by hand. Recycled polypropylene used comes from glass beverage plastic waste. The chemical treatment of lidah mertua fibers 5% NaOH and a soaking time of 2 hours. Composites are molded using a hot press with a temperature of 200oC and a holding time of 2 hours. Composite tensile testing was carried out using ASTM D-570 and bending test with ASTM 790-03. Tensile test results showed that the highest tensile strength at 35% volume fraction was 71,606 MPa. Tensile strength increased by 28.9% from 25% volume fraction to 35% volume fraction. Bending test results showed that the highest bending strength at 35% volume fraction was 74.55 MPa. The bending strength increased by 22.9% from the 25% volume fraction to the 35% volume fraction. By observing SEM micro photographs, the bond between the fiber and the matrix occurs well at 35% volume fraction

scholarly journals Pengaruh Penambahan Serat Batang Pisang Ketip dan Filler Dedak Padi Terhadap Density, Kekuatan Bending dan Tarik Kompositcore, Sandwich dengan Skin Plywood

MECHANICAL ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 1
Author(s):  
Salman Salman ◽  
Ahmad Fadly
Keyword(s):  
Tensile Strength ◽  
Fiber Volume Fraction ◽  
Bending Strength ◽  
Volume Fraction ◽  
Sandwich Composite ◽  
Fiber Direction ◽  
Fiber Volume ◽  
Banana Fiber ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite

Fiber-reinforced composite core banana stems with additional filler of husk powder is another way to obtain the expected mechanical behavior of the composite. The aim of this study was to analyze the effect of fiber volume fraction content to density, bending strength and tensile strength of sandwich composite.   Preparation of composite was done by hand lay-up method. Composite material used by banana ketip  fiber and addition of husk powder with variation of fiber volume fraction were 7, 10, and 13 % where husk was constant at 5% with random fiber direction. Tests were conducted by referring to the density est standard (ASTM C 271), bending est (ASTM C 393) and tensile test (ASTM D3039).  The result showed that the greater volume fraction of banana fiber, the lower the density value and the lower the bending strength. Whereas the tensile strength tended to increase as the volume fraction was higher.

scholarly journals PENGARUH PENAMBAHAN LIMBAH PLASTIK BEKAS TERHADAP KARAKTERISTIK KEKUATAN TARIK DAN KEKUATAN BENDING MATERIAL POLIMER KOMERSIL

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
S. Sujita ◽  
S. Gunawan Hadi
Keyword(s):  
Tensile Strength ◽  
Epoxy Resin ◽  
Tensile Testing ◽  
Bending Strength ◽  
Polyester Resin ◽  
Volume Fraction ◽  
Bending Test ◽  
Composite Powders ◽  
A Value ◽  
Plastic Powder

Polyester, epoxy and polyurethane composites are widely used for the matrix. The use of composite materials in the manufacturing industry as well as many studies of composites by utilizing plastic powder and the lack of studies directly comparing the tensile strength and bending properties of composite plastic powder to the treatment of the same fiber. The purpose of this study was to determine the tensile and bending strength of the composite material of polyester, epoxy, and polyurethane with reinforcing plastic powder by varying the volume fraction. In this study, the material used is plastic powder, with a size of 8 mm and the preparation of chopped random fibers, with a fiber volume fraction (0% / 100%, 5% / 95%, 10% / 90%, 20% / 80%, 30 % / 70%, 40% / 60, 50% / 50%, 60% / 40%, and 70% / 30%), using polyester resin, epoxy, and polyurethane as matriknya. Comparison of epoxy resin and polyurethane that is one to one, while for polyester using the catalyst of 2%. Tensile testing with ASTM D 3039, and bending test were conducted with ASTM D 790. The results of tensile testing tensile strength values obtained by variation of the highest volume fraction of 0% is owned by a composite plastic powder with 100% polyester resin with a value of 35.22 MPa, followed by a variation of the volume fraction of the composite with 0% plastic powder with 100% epoxy resin with the strength values pull of 6.40 MPa. While bending test results obtained the highest bending strength values held by the variation of volume fraction of the composite 0% plastic powder with 100% polyester resin with a value of 66.985 MPa, then successively followed by the composite with the highest volume fraction variation possessed by 30% of composite powders plastic with 70% epoxy resin with a value of 42.078 MPa bending strength, for a volume fraction of 50% variation of plastic powder with 50% polyurethane resin to obtain the highest value of bending strength of 6.963 MPa.

scholarly journals SIFAT MATERIAL POLYESTER HYBRID COMPOSITE - BATANG BEMBAN (Donax Canniformis)

2017 ◽  
Vol 2 (2) ◽  
pp. 97-104 ◽  
Author(s):  
Akhmad Syarief ◽  
Akhmad Yafie
Keyword(s):  
Tensile Strength ◽  
Energy Absorption ◽  
Hybrid Composite ◽  
Bending Strength ◽  
Volume Fraction ◽  
Chemical Properties ◽  
Bending Test ◽  
Stem Bending ◽  
New Type ◽  
And Chemical Properties

Bemban (Donax Canniformis) is a plant similar to rattan, the stem produces fiber woven material. This plant has other names bamban, bumban, bomban, and so forth. Composites are a new type of material combined with two or more ingredients and have different properties with each other both physical properties and chemical properties. From the research of this hybrid composite stem rod, it is known in the specimens of impact test of volume fraction 60% bemban (Energy Absorption 21,11 J and Impact Price 0,0332 J / mm²) has the most optimum ductility than volume fraction 40% Energy Absorption 20.62 J and Impact Price 0.0324 J / mm²) and 50% bemban bemban (Energy Absorption 20,96 J and Impact Price 0.0330 J / mm²). In bending test specimens, the volume fraction of 60% bemban stem (Bending Strength 0.45 MPa) has the most optimum ductility properties compared to the volume fraction of 40% bemban rod (Bending Strength 0.63 MPa) and 50% bemban (Bending Strength 0.72 MPa). In tensile specimens fraction volume of 60% bemban rod (Tensile Strength 0.00449 MPa) has the most optimum ductility properties compared to volume fraction of 40% bemban rod (Tensile Strength 0.00224 MPa) and 50% bemban rod (Pull Strength 0.00284 MPa).

Bending Properties of Five-Layer Biaxial Weft Knitted Fabric Reinforced Composite Materials

2011 ◽  
Vol 391-392 ◽  
pp. 359-363 ◽  
Author(s):  
Wei Geng ◽  
Ye Xiong Qi ◽  
Jia Lu Li
Keyword(s):  
Composite Materials ◽  
Fiber Volume Fraction ◽  
Bending Strength ◽  
Volume Fraction ◽  
Test Method ◽  
Bending Test ◽  
Bending Properties ◽  
Fiber Volume ◽  
Reinforced Composite ◽  
Bending Load

Five-layer biaxial weft knitted (FBWK) fabric is one kind of multilayered biaxial weft knitted (MBWK) fabric. FBWK fabric is made of carbon fiber as inserted yarns and stitched with polyester yarns, and it has been impregnated with epoxy via resin transfer molding (RTM) technique to manufacture the composite plates. The bending properties of the FBWK fabric reinforced composite are studied with the three-point bending test method. The bending properties of the FBWK fabric reinforced composite materials with different fiber volume fraction have been investigated. The results show that the relationship between bending load and deflection is obviously linear before reaching the maximum load. Within a certain range, the bending strength of this kind of composites increases with the fiber volume fraction increasing. When the fiber volume fraction is 57%, the bending strength is 1051.4 MPa.

scholarly journals Studi Pengaruh Komposisi Pengisi Serat Alam Kayu Galam (Melalueca Leucadendra) Bentuk Serutan pada Sifat Mekanik dan Mikrostruktur Komposit Poliester Sebagai Material Untuk Aplikasi Bilah Kincir Angin

2019 ◽  
Vol 19 (1) ◽  
pp. 9-14
Author(s):  
Andromeda Dwi Laksono ◽  
Ika Ismail ◽  
Cahyaningtyas Ratna Ningrum
Keyword(s):  
Tensile Strength ◽  
Bending Strength ◽  
Natural Fiber ◽  
Volume Fraction ◽  
Wood Fiber ◽  
Fiber Composites ◽  
Impact Testing ◽  
Bending Test ◽  
Natural Fiber Composites ◽  
Melaleuca Leucadendra

[ID] Sebagai alternatif sumber energi konvensional, energi angin merupakan salah satu energi alternatif yang banyak dikembangkan. Pemanfaatan energi ini tidak lepas dari alat pengonversinya, kincir angin. Salah satu komponen kincir angin yang cukup penting adalah bilah. Bilah sering mengalami masalah berupa pengikisan pada bagian permukaannya akibat benturan dengan oleh partikel yang terbawa oleh angin yang dapat mengakibatkan fungsi bilah tidak optimal. Sehingga, dibutuhkan material pengganti yang lebih kuat tetapi ringan, yakni komposit. Komposit yang digunakan adalah komposit serat alam (serat Melaleuca leucadendra-poliester). Dalam penelitian ini akan dianalisa pengaruh fraksi volume serat berbentuk serutan terhadap kekuatan tarik, kelenturan dan ketangguhan. Pembuatan komposit serat alam Kayu Galam (Melaleuca leucadendra)-poliester dengan cara mencampurkan resin, katalis dan serat Kayu Galam yang berbentuk serutan kemudian dicetak didalam cetakan yang telah dilapisi alumunium foil. Sampel kemudian dilakukan pengujian kekuatan tarik dengan standar ASTM D 638, pengujian tekuk dengan standar ASTM D 790 serta pengujian impak dengan standar ASTM D 6110. Metode yang digunakan dalam pembuatan adalah metode hand lay-up. Hasil dari penelitian ini adalah nilai optimum yang dicapai yaitu 70% serat pada semua uji mekanik. Didapatkan nilai kekuatan tarik berada sebesar 13,07 MPa, kekuatan tekuk optimum 36,8 MPa dan nilai optimum dari kekuatan impak sebesar 590,39 MPa. [EN] As an alternative to conventional energy sources, wind energy is one of the many alternative energies that have been developed. The utilization of this energy is inseparable from its conversion tool, windmills. One component of the windmill that is quite important is the blade. Blades often experience problems in the form of erosion on the surface due to collisions by particles carried by the wind which can cause the blade function to be not optimal. So, it takes a replacement material that is stronger but lighter, namely composite. The composites used were natural fiber composites (Melaleuca leucadendra-polyester fibers). In this study, the effect of the volume fraction of fiber in the form of shavings on tensile strength, flexibility, and toughness will be investigated. The making of natural fiber composites of Galam Wood (Melaleuca leucadendra) -polyester by mixing resin, catalyst, and Galam Wood fiber in the form of shavings is then printed in a mold that has been coated with aluminum foil. Samples were then tested for tensile strength with ASTM D 638 standard, bending test with ASTM D 790 standard and impact testing under ASTM D 6110 standard. The method used in manufacturing was the hand lay-up method. The result of this study is the optimum value achieved is 70% fiber in all mechanical tests. Obtained tensile strength values of 13.07 MPa, the optimum bending strength of 36.8 MPa and the optimum value of impact strength of 590.39 MPa.  

scholarly journals Analisis Sifat Mekanik Terhadap Bentuk Morfologi Papan Komposit Sekam Padi Sebagai Material Alternatif Pengganti Serat Kaca

2018 ◽  
Vol 2 (1) ◽  
pp. 21
Author(s):  
Kardiman Kardiman ◽  
Marno Marno ◽  
Jojo Sumarjo
Keyword(s):  
Tensile Strength ◽  
Tensile Test ◽  
Rice Husk ◽  
Natural Fiber ◽  
Volume Fraction ◽  
Air Bubbles ◽  
Test Results ◽  
Morphological Form ◽  
Naoh Solution ◽  
Husk Rice

ABSTRAKPengembangan material komposit menuntut terciptanya material yang lebih ramah lingkungan. Salah satunya yaitu dengan pemanfaatan serat alam sebagai alternative pengganti serat kaca.Penelitian ini dimaksudkan untuk menganalisa pengaruh fraksi volume sekam padi 10%, 35% dan 50 %. Pembuatan komposit dimulai dengan mencapurkan sekam padi dengan larutan NaOH 7%, kemudian dialkalisasi selama 2 jam, cetakan komposit menggunakan standart ASTM D 638 dengan metode Hand Lay Up. Pengujian sifat mekanik meliputi pengujian tarik dan karakterisasi menggunakan Scanning Electron Microscope (SEM). Hasil penelitian menunjukkan bahwa kekuatan tarik tertinggi terjadi pada fraksi volume 10 % sampai dengan 35% yaitu 11,071 N/mm2 sampai dengan 11,387 N/mm2. Dari hasil pengujian SEM menujukan bentuk morfologi sekam padi fraksi 35% yang tebentuk didominasi resin butek dan tampak mengikat sekam padi secara optimal. Sedangkan bentuk morfologi fraksi volume sekam 50% terlihat bentuk morfologi gelembung udara selain itu rongga terbentuk lebih besar sehingga resin tidak cukup mampu mengikat sekam padi secara optimal. Sehingga [L1] dapat disimpulkan bahwa pencampuran fraksi sekam padi 10% sampai dengan 35% akan meningkatkan nilai kekuatan tarik selain itu, bentuk morfologi yang diamati terlihat sangat baik dibanding fraksi sekam 50%.Kata kunci: Komposit Sekam padi, Pengujian Tarik, pengujian SEM  ABSTRACTThe development of composite materials demands the creation of more environmentally friendly materials. One of them is the utilization of natural fiber as an alternative to the change is fiber glass.  This study aims to determine the effect of rice husk fraction volume to 10%, 35% and 50%. Composite preparation was started by mixing the rice husk with 7% NaOH solution, then it was calculated for 2 hours, the composite mold using ASTM D 638 standard with Hand Lay Up method. Testing of mechanical properties using tensile test and characterization using SEM. The results showed a high tensile strength in the volume fraction of 10% to 35%, ie 11.071 N/mm2 up to 11,387 N/mm2. From the SEM test results morphological form of rice husk fraction 35% which is dominated by the resins butek and looks optimally husk rice husk. The morphological form of 50% husk volume fraction is seen in morphological form of air bubbles besides that the cavity is formed larger so that the resin is not enough able to bind rice husk optimally.[L2]  It can be concluded that mixing rice husk fraction of 10% to 35% will increase the tensile strength values in addition, the morphology was observed look very good compared chaff fraction of 50%.Keyword: Composite husk rice, Tensile Test, SEM testing 

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