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All Journal IPTEK The Journal for Technology and Science BERKALA SAINSTEK J-Dinamika: Jurnal Pengabdian Kepada Masyarakat International Journal of Marine Engineering Innovation and Research Jurnal Jaring SainTek Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan Archipelago Engineering Jurnal Jalasena
Akhmad Basuki Widodo
Universitas Hang Tuah Surabaya
Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Transportation

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Effect of Bamboo Node for Construction Application Basuki Widodo, Akhmad; Panunggal, Eko; Widjaja, Sjarief; M. Rasyid, Daniel; Soegiono, Soegiono
IPTEK The Journal for Technology and Science Vol 18, No 3 (2007)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20882033.v18i3.166

Abstract

In use of material for structure application, the most critical shares is jointed area, where this area is accumulation of stress accepted from existing burden. In structure laminate, joints represent part of drawback from the construction. And so do that happened at node in bamboo. Every part of bamboo there are node and internode. strength of bamboo with the internode will be downhill 25 % compared to bamboo without internode. In this research aim to know effect of bamboo node in construction laminate. Examination of test made with lamination without node and by node. Examination covering test of static bending and tensile strength. Standard used ASTM D-143. From result of examination and analyse, indicating that there difference between strength of wood laminate with internode and wood laminate without internode. But degradation of strength not equal to difference of strength of bamboo solid. At bamboo composite of degradation of strength only equal to 4.88 %, while wood and bamboo composites, where part of bamboo one-third from composite, degradation of strength reach 18.33 %. But degradation of the strength still fulfill conditions for structural used.
Analisa Kekuatan Tarik Komposit Serat Pelepah Pisang Sebagai Alternatif Untuk Laminasi Kapal Ikan ahmad mu'aazar habibie habibie; Akhmad Basuki widodo akhmad basuki widodo
Jurnal Jaring SainTek Vol. 4 No. 1 (2022): April 2022
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/jaringsaintek.v4i1.993

Abstract

Fishing boats are vessels that almost 90% of the building materials are made of wood. The nature of wood that is easily weathered and attacked by wood destroying organisms causes fishing vessels with wood materials to be easily damaged. Banana trees are plants that thrive in Indonesia. In addition to the fruit, banana tree leaves are the part that is often used for reprocessing. However, the midrib of the tree cannot be utilized optimally and will become unused waste. Therefore, the author has an innovation using banana midrib fiber as a composite material as a wood ship lamination material. Therefore, researchers need to do a test, namely by tensile test of variations in fiber thickness of 1 layer, 2 layers, 3 layers on a banana midrib fiber composite and polyester resin to measure the tensile strength value of the composite which refers to the ASTM 638-02a standard. Keywords : Wooden ship, banana fiber, Composite
Impact Test Value of Asphalt Composite with Bamboo Fiber Apus (Gigantochloa apus) Frisko Yulian Maheswara; Januar Putra Umba Kusairiawan; Akhmad Basuki Widodo
International Journal of Marine Engineering Innovation and Research Vol 7, No 1 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (254.964 KB) | DOI: 10.12962/j25481479.v7i1.12454

Abstract

The use of Fibrous Reinforced Plastic material with fiberglass reinforcement materials is considered to impact the environment and human health, giving rise to the idea of developing asphalt composite materials with fiber apus (Gigantochloa apus), which assessed can be the correct answer as an environmentally friendly material. Asphalt composite material with bamboo fiber apus is tested using the Charpy type impact test method by referring to ASTM to determine the substantial value of its impact. The value of the material impact test results is analyzed using the ANOVA method and compared to the impact test value of Bamboo Reinforced Plastic. The impact test results obtained that the highest value of the strong material impact of 5.9 J/cm² and the lowest by 0.1 J/cm², based on the results of the impact test, asphalt composite material with bamboo fiber content has not been able to exceed the highest value of bamboo reinforced plastic impact strength.
KARAKTERISASI BAMBU LAMINASI SEBAGAI BAHAN PEMBANGUNAN KAPAL PERIKANAN Akhmad Basuki Widodo
ALE Proceeding Vol 1 (2018): Archipelago Engineering (ALE)
Publisher : Fakultas Teknik Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ale.1.2018.16-25

Abstract

Penggunaan bambu dibidang konstruksi sampai saat ini masih sangat terbatas dan hanya digunakan pada struktur ringan. Pengembangan penggunaan bambu dibidang struktur, khususnya dibidang pembangunan kapal, dapat dikatakan masih belum tersentuh. Dengan adanya teknologi laminasi dan dengan perlakuan tertentu, diharapkan pemanfaatan bambu dapat diperluas pada penggunaan struktur dan dibidang perkapalan, khususnya kapal non baja. Dari hasil penelitian dan pengujian ditunjukkan bahwa komposit kayu jati dan/atau bambu betung mempunyai sifat fisis dan sifat mekanis yang lebih baik dibandingkan dengan kayu jati yang selama ini digunakan sebagai bahan pembangunan kapal kayu. Sebagai bahan pembangunan kapal kayu, komposit bambu mempunyai kerapatan (density) yang lebih tinggi dibandingkan dengan kayu jati solid dan komposit lainnya. Kerapatan bahan sangat berpengaruh terhadap berat kapal yang akhirnya akan berpengaruh pula terhadap ruang muat (palka), kecepatan kapal dan kebutuhan bahan bakar. Tetapi komposit kayu jati dan bamboo betung dengan jumlah lapisan 5 dengan komposisi kayu jati-nya 2/3 dari keseluruhan, mempunyai kerapatan yang lebih rendah dibandingkan dengan kayujatin solid. Secara keseluruhan, sifat mekanis komposit kayu jati dan bambu betung lebih baik dibandingkan dengan kayu jati solid, rata-rata kenaikan kekuatannya mencapai 40 %.Pengaruh ruas bambu terhadap kekuatan bending dan tarik (tension) dibandingkan tanpa ruas, kekuatannya menurun sekitar 10 persen tergantung dari jumlah lapisan dan jenis kayu. Tetapi dengan jumlah lapisan dan jenis kayu yang sama, maka komposit bambu dengan kayu jati mempunyai tingkat penurunan yang paling kecil (+ 7,35 persen).Ketahanan komposit kayu jati dan/atau bambu betung terhadap beban bergerak, komposit bambu mempunyai ketahanan terhadap beban dinamis yang paling baik. Hal ini ditunjukkan dengan adanya kekuatan sisa (residual strength) yang masih tinggi. Sesuai dengan regulasi Biro Klasifikasi Indonesia (BKI) untuk Ketentuan Kapal Kayu, maka komposit kayu jati dan bambu betung memenuhi persyaratan bahan untuk bahan pembangunan kapal non baja.Disain kapal dengan menggunakan bahan utama komposit bambu dengan ukuran 5 gross tonnage (GT) dengan ukuran utama (principal dimension) panjang secara keseluruhan (LOA) = 9.47 meter, lebar kapal (B) = 2.80 meter dan tinggi badan kapal (D) = 1.20 meter. Kecepatan 8.0 knot dengan waktu operasi (endurance) selama 3 hari dengan 4 personil. Mesin yang digunakan 52 kW dengan ruang muat ikan sebesar 4.00 m3.
ANALISA STRUKTUR HALF PIPE FENDER DENGAN VARIASI DESIGN PADA LAMBUNG KAPAL Bagus Setiawan Permana; Akhmad Basuki Widodo
JURNAL JALASENA Vol 4 No 1 (2022): AGUSTUS 2022
Publisher : Fakultas Sains dan Teknologi Universitas Karimun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51742/jalasena.v4i1.623

Abstract

In this research, we will explain about the design and analysis of ship fenders that can reduce damage to the hull structure when there is a collision between the ship and the pier. With the design of the ASTM A36 steel fender for a special study on KMP Nusa Dua using the finite element analysis method assisted by ANSYS software which is able to simulate the strength of the fender structure that we designed, from here we will get a fender design that is able to protect the hull structure when a contact occurs. collision between the ship and the dock. For the fender material data that will be used in the simulation through the ANSYS software is ASTM A36 Steel based on data from ASME which will then be given a load with the value of the ship's energy rating when leaning. The results of this simulation will get an analysis of the stress and deformation of the fenders on the hull and how well the fenders absorb the collision between the ship and the pier. Keywords: Ship Fender, Finite Elemen Analysis, Berthing Energy
Studi Kekuatan Impact Laminasi Sistem Sisip (Sandwich) Fiberglass dan Polyurethane Foam Okvani heys saputro; Akhmad Basuki Widodo
Jurnal Jaring SainTek Vol. 4 No. 2 (2022): Oktober 2022
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/jaringsaintek.v4i2.1197

Abstract

Fiberglass boats are one of the options that are often used as an alternative to wooden boats. However, leaks on fiberglass boats are very difficult to handle at sea, so laminate using a sandwich system on fiberglass material and Polyurethane Foam can be a solution to deal with leaks on fiberglass boats at sea, where Polyurethane Foam can be a solution to prevent the entry of water when the fiberglass material experiences leaks or cracks in fiberglass boats. In this study, tests will be carried out on the laminated system of fiberglass inserts and polyurethane foam with variations of three types of polyol and isocyanate mixture compositions to form polyurethane foam materials, namely 1:1, 1:1.5, 1:2 using the charpy type impact test method with reference to on ASTM D256 93a to determine the impact value, then an analysis of the average value of the test results was carried out and compared with the impact value of fiberglass sandwich composites reinforced with palm fiber and epoxy. From the results of the impact test, the average 1:1 variance is 0.033j/cm3, and the 1:1.5 variance is 0.038j/cm3, 1:2 variance is 0.034j/cm3. From the test results, it was found that the average value of the variance of 1:1.5 was able to exceed the value of fiber composites reinforced with fibers and epoxy which had the same thickness on the skin.
LAMINASI KAYU MAHONI DAN KAYU JATI SEBAGAI BAHAN ALTERNATIF PEMBANGUNAN KAPAL IKAN Ryan Andicha Firmansyah; Akhmad Basuki Widodo
JURNAL JALASENA Vol 4 No 2 (2023): FEBRUARI 2023
Publisher : Fakultas Sains dan Teknologi Universitas Karimun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51742/jalasena.v4i2.875

Abstract

Penelitian ini memiliki tujuan untuk menganalisis Teknik Pembangunan Kapal Ikan Tradisional Dengan Teknologi LaminasiKayu Mahoni Dan Kayu Jati. Objekyang dijadikan dalam penelitian ini ialah kapal kayu penangkap ikan tradisional ukuran.Penelitian ini menggunakan material laminasi kayu mahoni dan kayu jatiyang digunakan untuk spesimen uji. Tumpukanlaminasi kayu mahoni yangdigunakan menggunakan tumpukan bata (Strip). Lem yang digunakan untuklaminasi yaitumenggunakan lem Epoxy Resin Marine Use. Standar konstruksi untuk laminasi kapal kayu berdasarkan standar pengujiankekuatan laminasiberdasarkan JIS (Japan Insdustried Standart). Hasil dari pengujian menunjukkanbahawa untuk spesimenyang menggunakan ½ kayu mahoni ½ kayu jati memilikinilai rata-rata yang rendah yaitu sebesar 101.98 kg/cm². sedangkanuntuk nilai rata-rata tertinggi pada pengujian ini yaitu varian spesimen berkode SJDM atau varian spesimen 1/3 kayu jati2/3 kayu mahoni dengan nilai rata-rata sebesar 180.15 kg/cm². Sedangkan untuk varian laminasi dengan kode SMDJmemperolehnilai rata-rata sebesar 142.77 kg/cm². varian dengan komposisi ini merupakan varian yang memiliki komposisi2/3 Kayu jati Dan 1/3 Kayu mahoni.
Sesame Oil Addition to Bamboo Reinforced Composite Matrix Januar Putra Umba Kusairiawan; Akhmad Basuki Widodo; Dwisetiono Dwisetiono; Mochamad Arief Sofijanto
International Journal of Marine Engineering Innovation and Research Vol 8, No 1 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i1.16072

Abstract

Wooden ships use jati wood. Over time jati wood has become scarce. So that jati wood is relatively expensive. therefore bamboo is researched starting from the skin, bamboo meat, and bamboo internodes contained in the plant. In the structure of bamboo there are internodes. The bamboo segment is the weakness of the bamboo structure. The effect of bamboo segments in composite construction was investigated. Sesame oil replaces mineral oil and chemicals, because sesame oil is biodegradable, non-toxic, environmentally friendly, and renewable. To determine the effect of bamboo segments, tensile and bending tests will be conducted on the bamboo composite. The results of this research are expected to find alternative materials, namely bamboo fibre-based composites or so-called bamboo reinforcement plastics (BRP) as materials for making people's ships. This study found that the more layers of bamboo and bamboo segments are very influential in influencing the tensile and bending strength of a laminated material. The tensile testing value of layer 3 with segments reached 127.556 Mpa and without segments 933.333 as well as bending testing layer 3 with segments reached 113.889 Mpa and without segments 111.111 Mpa. From this value, the value has not met the standard of the Indonesian Classification Bureau (BKI).
The Flexural Strength and Impact Toughness of Bamboo Reinforced Latex-Asphalt Composite Frisko Yulian Maheswara; Akhmad Basuki Widodo; Bagiyo Suwasono
International Journal of Marine Engineering Innovation and Research Vol 8, No 2 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i2.16875

Abstract

Dependence on materials for the small ship industry can cause other problems. The development of cheap, environmentally friendly, and sustainable small ship manufacturing raw materials is a challenge that must be faced, this gave rise to the idea of developing asphalt-matrixed bamboo (Gigantochloa apus) composite materials with added latex (Hevea brasiliensis) as small ship hull skin material. The asphalt-latex composite material reinforced with apus bamboo fibers was tested using a three-point bending test and a Charpy-type impact test concerning ASTM. The test results showed that the asphalt-latex composite material reinforced with bamboo fibers had an impact toughness of 57.2 kJ/m² and a flexural strength of 6.4 MPa.
Joint Types of Keel and Frame of Wooden Boats Built with Modular System Akhmad Basuki Widodo; Mochammad Arief Sofijanto
International Journal of Marine Engineering Innovation and Research Vol 8, No 2 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i2.16847

Abstract

The ocean's potential has not been fully exploited to date, with only 40 per cent of the ocean's potential being used. This is due to inadequate facilities and infrastructure. The lack of infrastructure and facilities is due to many factors. One of them is the lack of fishing boats compared to the existing potential. This is because it takes a long time to build a fishing boat. In addition, the existing fishing boats are not powerful enough to travel up to 200 nautical miles. The way out of these problems is to build wooden boats using a modular system. This modular system is expected to produce fishing boats quickly but with a qualified construction. The problem in the production process with this modular system lies in the connection between the keel and the frame. The joint is a critical part in the construction of wooden boats where the joint must be able to withstand dynamic loads. The advantage of wooden boats built with this modular system is that the production process is relatively shorter, which can reduce production costs. The results of tests carried out have shown that the tongue-and-groove type of joint on the keel has a better bending test than the oblique hook type of joint used by traditional boatbuilders. The frame connection type with internal reinforcement has the highest strength among the connection types commonly used by boatwrights and the type of frame connection reinforced on the left and right sides.
Co-Authors ahmad mu'aazar habibie habibie Ali Azhar Arifianto, M Fajar Arisetya, Danny Arisetya Saputra Bagiyo Suwasono Bagus Setiawan Permana Dwisetiono, Dwisetiono Eko Susanto Frisko Yulian Maheswara Frisko Yulian Maheswara Heys Saputro, Okvani Intan Baroroh Januar Putra Umba Kusairiawan Januar Putra Umba Kusairiawan Kristiyono , Tri Agung M. Rasyid, Daniel Maheswara, Yulian Mochamad Arief Sofijanto Mochammad Arief Sofijanto Mu'aazar Habibie, Ahmad Okvani heys saputro Panunggal, Eko Purnomo, Revanda Indra Rahayu Dwi Hentanti Ningrum, Pramita Ryan Andicha Firmansyah Sjarief Widjaja Soegiono, Soegiono Subagio, Hari Sugianto, Erik Yoga Savalas, Tegar