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All Journal Jurnal Teknik Mesin SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin E-Dimas: Jurnal Pengabdian kepada Masyarakat Jurnal Rekayasa Material, Manufaktur & Energi Indonesian Journal of Chemistry Al Qalam: Jurnal Ilmiah Keagamaan dan Kemasyarakatan Jurnal Metalurgi dan Material Indonesia Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Jurnal Surya Teknika Teknologika Jurnal Teknik Sipil Journal of The Civil Engineering Student PESARE: Science and Engineering Service Journal Jurnal Polimesin
Fonna, Syarizal
Universitas Syiah Kuala
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Interfacial stress distribution analysis of natural fiberreinforced epoxy composites: a finite element approach Ikramullah, Ikramullah; Gapatra, Reja; Ananda, Seprian Haris; Kurniawan, Rudi; Fonna, Syarizal; Rizal, Samsul; Huzni, Syifaul
Jurnal Polimesin Vol 22, No 6 (2024): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i6.6085

Abstract

The strength of fiber-reinforced composites is greatly influenced by the bonding at the fiber-matrix interface. Experimental methods to study this interface are often challenging, making numerical approaches essential for evaluating the interfacial behavior in fiber-reinforced composites. This study investigates the stress and strain distribution in the fiber, matrix, and fibermatrix interface regions of natural fiber-reinforced single-fiber composites under tensile loading using the finite element method. Interface conditions were modeled using cohesive elements, with the composites represented in two dimensions through ABAQUS 6.14 software. The tie constrains contact model was employed to define binding interactions between the cohesive element, the fiber, and the matrix. The maximum stress value resulting from the simulation process is 202 MPa and a strain of 0.0449 mm. The stress is effectively distributed to the fiber, demonstrating that the cohesive element used in composite analysis under tensile loading serves as a reliable link between the fiber and the matrix. The simulation results revealed a maximum stress value of 202 MPa and a corresponding strain of 0.0449 mm. The stress distribution effectively transferred to the fiber, demonstrating the capability of cohesive elements to represent the interfacial bond in composites under tensile loading. These findings confirm that cohesive element modeling is reliable method for analyzing fibermatrix interactions in natural fiber reinforced composites, providing insights for optimizing composite performance.
Comparative study of performance of temiki (Melastomacandidum) and rubek (Calotropis gigantea) extract inhibitors for carbon steel in corrosive media Supardi, Joli; Rizal, Samsul; Ali, Nurdin; Fonna, Syarizal; Ikramullah, Ikramullah; Veranita, Veranita; Arifin, A.K.
Jurnal Polimesin Vol 21, No 6 (2023): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i6.4577

Abstract

The use of synthetic inhibitors that negatively affect the environment is still used. Organic inhibitors are the best and most environmentally friendly solutions such as Temiki plants (MelastomaCandidum) and Rubik (Calotropis Giganteen) which have good corrosion cell inhibitor properties and have the potential to be used as corrosion inhibitors. This study analyzed Temiki and Rubik extracts as corrosion inhibitors in carbon steel using the weight loss method in 3.5% NaCl solution and analyzed the efficiency of the inhibitors. Temiki and Rubik's are extracted by drying the leaves, stems and flowers under the sun. Then the material is mashed together and distilled by the solid-liquid method with the Soxhlet tool. Identification of plant components using Gas Chromatography-Mass Spectrometry (GC-MS). Density and viscosity were analyzed following ASTM D 4052 and ASTM D 445 standards. Weight loss method testing was carried out at inhibitor concentrations of 200, 300, 400 and 500 ppm, with soaking time for 15 weeks and data collection was carried out every week. The results of the analysis showed the highest corrosion rate in Temiki extract with a concentration of 500 ppm reaching 1,569 mpy and the lowest at a concentration of 500 ppm reaching 0.157 mpy. In Rubik's extract inhibitors, the highest corrosion rate occurred in 500 ppm inhibitors reaching 1,268 mpy, while the lowest occurred at 200 ppm concentrations reaching 0.331 mpy. The highest efficiency value is the 400 ppm Temiki inhibitor with efficiency reaching 82.89% and the lowest at 500 ppm reaching 19.55%. while for the efficiency of Rubik's extract inhibitors, the highest value was 62.71%, at a concentration of 200 ppm. While the lowest is 28.40%, at 500 ppm inhibitors. These results show that Temiki and Rubik's extracts can still function well as corrosion inhibitors in low-carbon steels in NaCl solution.
Co-Authors ., Israr Abdul Rahman Abdullah Abdullah Abdullah Abdullah Adriman, Ramzi Afdhal Afdhal Affandi Affandi . Ahmad Kamal Ariffin ALI, NURDIN Amri, Zubaidi Ananda, Seprian Haris Ariffin, Ahmad Kamal Arifin, A.K. Arya Rudi Nasution Banta Cut Budi Istana Darwin Darwin Darwin Harun Fara Qamara Elmyra Ferri Safriwardy Furqan, M. Restu G Gunawarman, G Gapatra, Reja Habibie, Muhammad Hasan, Muttaqin Herdi Susanto Heri Faisandra Ika Wahyuni Ikramullah, Ikramullah Illiyinal Muttaqin Lessy, Dien Taufan Lubis, Riadini Wanty M Ridha M. Abrar Masykuri M. Ibrahim, Israr Bin M. Ihsan Muhammad Rizky Muhammad Zulfri Nanda Masturah Hussein Rudi Kurniawan S. Huzni Samsul Rizal Saputra, Yumaidi Siregar, Chandra A Supardi, Joli Suri Purnama Febri Syahrul Fathi Syifaul Huzni Tanjung, Iqbal Tanjung, Iqbal Umran, Munzir Veranita, Veranita Zuli Agustina Gultom