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All Journal Jurnal Teknik Mesin Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Panrita Abdi - Jurnal Pengabdian pada Masyarakat CARADDE: Jurnal Pengabdian Kepada Masyarakat Jurnal Serambi Engineering Industrial Engineering Journal (IEJ) Jurnal Pengabdian Kepada Masyarakat (Mediteg) Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Jurnal Vokasi Journal of Welding Technology Jurnal Bakti Masyarakat Indonesia Jurnal Teknologi Jurnal Teknologi Kimia Unimal Jurnal Polimesin Journal Serambi Engineering (JSE) Jurnal Mesin Sains Terapan Disaster in Civil Engineering and Architecture
Indra Mawardi
Jurusan Teknik Mesin Politeknik Negeri Lhokseumawe
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Journal : Jurnal Polimesin

 1 
Investigation of mechanical properties and dynamic characteristics of OPEFB Fiber Composite Zuhaimi Zuhaimi; Misran Misran; Indra Mawardi; Darmein Darmein; Nurlaili Nurlaili; Zaini AK; Hanif Hanif; Amir D
Jurnal POLIMESIN Vol 21, No 4 (2023): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i4.4247

Abstract

Composite materials is increasingly experiencing an increa- sing trend, the manufacture of composites currently uses a lot of natural fiber reinforcement, Oil Palm Empty Fruit Bunches (OPEFB) fiber is a fiber that comes from oil palm empty fruit bunches waste that grows a lot in Indonesia and has the potential to be used as reinforcement in the manufacture of composites. With natural fiber reinforcement. The manufacture of composites in this study varied the fiber volume fraction by 5%, 15%, and 25%. Many previous studies on composite materials have focused on studying the physical and mechanical properties of composites. Even though damage to a structure or material is not only caused by static loads but also by dynamic loads. Vibration is a dynamic load experienced by material or structure, so it is necessary to determine the dynamic character of composite materials, one of the dynamic characteristics of materials is their natural frequency, the determination of the natural frequency in this study was carried out by using the finite element method in the ANSYS software. The results of the analysis in the form of tensile strength values and modulus of elasticity were obtained from tensile testing and dynamic characters in the form of natural frequencies and vibration modes were obtained from the analysis modal simulation process. From the results of the tensile test, it was found that the composite with a variation of 15% OPEFB fiber volume had the highest tensile strength and modulus of elasticity, as well as the results of the analysis modal simulation, a composite with 15% OPPEFB fiber, had the highest natural frequency value among the other two variations.
Perancangan dan fabrikasi mesin extrusi single screw Sumardi Indra Mawardi
Jurnal POLIMESIN Vol 7, No 1 (2009): Februari
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jp.v7i1.1348

Abstract

Penelitian ini dilakukan dimulai dari desain sampai mesin ekstrusi dapat digunakan. Mesin ekstrusi yang dibangun adalah tipe single screw. Pada penelitian ini perubahan bentuk produk tersebut akan dianalisis dengan memvariasikan temperatur proses terhadap temperatur melting dari jenis plastik polypropylene. Temperatur proses yang digunakan sebagai variabel bebas pada penelitian ini adalah 165", dan 180”, C, dan putaran screw konstan 60 rpm. Bentuk produk adalah batangan silinder dengan ukuran die 5 mm. Dari hasil penelitian ini telah dibangun sebuah mesin ekstrusi single screw. Dengan menggunakan bentuk dan dimensi ekstruded sebagai indikator keberhasilan maka, temparatuer proses yang sesuai untuk mesin dengan single screw padaperbandingan L/D — 14 pada kisaran 180" C.Kata-kata kunci : Ekdtrusi, Single screw, plastik, polypropylene
Kajian perlakuan serat sabut kelapa terhadap sifat mekanis komposit epoksi serat sabut kelapa Indra Mawardi; Azwar Azwar; Amir Rizal
Jurnal POLIMESIN Vol 15, No 1 (2017): Februari
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v15i1.369

Abstract

Komposit adalah gabungan dari dua atau lebih material berbeda yang terdiri dari fiber dan matriks, penelitian ini menggunakan serat (fiber) serat sabut kelapa, dan matrik yang digunakan yaitu Epoxy Resin dan Epoxy hardener dengan merk Eposchon,  dengan  perbandingan  30:70.  Tujuan dari penelitian ini adalah untuk mengetahui pengaruh perlakuan serat sabut kelapa terhadap sifat mekanik dan juga untuk mengetahui nilai beban kejut dan beban lentur komposit epoksi yang berpenguat serat sabut kelapa yang mengalami perlakuan.  Pada  penelitian  ini  peneliti  mengkaji kekuatan Impak dan Bending dari komposit serat sabut kelapa, dan pengaruh perendaman  serat  dalam  larutan  Alkali  (NaOH)  5%  selama  5  jam,  serta  blender dengan variasi waktu 10 menit, 20 menit, dan 30 menit. Standar pengujian Impak menggunakan   standar   ASTM   E   23,   sedangkan   untuk   pengujian   Bending menggunakan standar ASTM D 790. Berdasarkan hasil dari kesimpulan yang didapat dari pengujian material komposit yang mempunyai harga Impak tertinggi yaitu komposit dengan perlakuan blender 10 menit yaitu sebesar 0.02 J/mm. Sedangkan untuk pengujian Bending mempunyai kekuatan bending tertinggi yaitu komposit dengan perlakuan blender 30 menit yaitu sebesar 88.68 Mpa. Kata kunci : Komposit, serat sabut kelapa, resin epoxy, perlakuan mekanis, uji impak, uji bending
Rancang bangun perkakas penarik bantalan perseneling Mawardi Mawardi; Indra Mawardi; Zaini AK
Jurnal POLIMESIN Vol 1, No 1 (2003): Agustus
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jop.v1i1.1395

Abstract

Fabrication and mechanical characterization of binderless boards from sugarcane bagasse fibers Hasanuddin, Iskandar; Faurantia, Faurantia; Mawardi, Indra
Jurnal Polimesin Vol 23, No 2 (2025): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i2.6078

Abstract

Agricultural   waste  management  is  a  pressing  environmental concern, as traditional disposal methods like incineration contribute to pollution. This study explores the fabrication and evaluation of binderless boards made from sugarcane bagasse fibers, eliminating the need for synthetic binders. Bagasse fibers were processed at mesh sizes of 20 and 40, then hot-pressed at 190°C under 9.6 MPa pressure for 15 and 25 minutes, achieving a targeted thickness of 10 mm. The physical and mechanical properties, including density, water absorption, thickness swelling, Modulus of Rupture (MOR), and Modulus of Elasticity (MOE), were analyzed. Results showed that particle size and pressing time significantly influenced board properties. The highest performance was  observed in  the  E25 sample (40-mesh, 25-minute pressing), with  a  density of  0.52 g/cm³, MOR of 2.69 MPa, MOE of 293.82 MPa, water absorption of 134.66%, and thickness swelling of 16.80%. These findings suggest that optimizing particle size and pressing conditions enhances binderless board strength and dimensional stability, making sugarcane bagasse a viable raw material for sustainable panel production.
Co-Authors - Hanif - Ramli A. Jannifar Abdel Peudada Alfonso, Ali Umar Aljufri Aljufri aljufri aljufri, aljufri Amalia, Ismi Amir D Amir Rizal Andreas Andreas Andreas Andreas Arhami, Muhammad Ariefin Ariefin Ariefin Ariefin Azwar Yunus Darmein Darmein Dwi Saifullah Faisal Faisal Fakhriza - Faurantia, Faurantia Franky Franky Guntur Syahputra Haiyum, Muhd Hamdani Hamdani Hamdani, Hamdani Hamzah, Ahmad Mujahid Hanif Hanif Hanif Hanif Hanif Hanif Hanif, Hanif Hasanuddin, Iskandar Hashim, Mohd Hazree Hasrin Hasrin Indrawati Irwin Syahri Cebro Junaidi Junaidi Khairol Mizan Us M. Faisal Mawardi Mawardi Mior Sani, Wan Noor Hin Misran Misran Muhammad Hatta Muhammad Muhammad Muhammad Riphaldi Muntasir, Muntasir Muzammir Muzammir Nahar Nahar Nahar, Nahar Nurdin Nurdin Nurdin Nurdin Nurlaili Nurlaili Putra, Reza Rizal, Samsul Rogo, Kabiru Usman Safaruddin Saifuddin . Saifuddin Saifuddin Samsul Bahri Samsul Bahri Samsul Bahri Sariyusda, Sariyusda Seiba, Sandradilla Yohana Sofyan Sofyan Sri Aprilia Syamsiar, Syamsiar Taufik Taufik Turmizi, Turmizi Yacoob, Haryati Yuniati, Yuniati Zainal Abidin Zainal Abidin Zaini Zaini AK ZAINI AK ZAINI AK Zuhaimi Zuhaimi Zuhaimi Zuhaimi Zul Saputra Zulkarnaini Zulkifli Zulkifli