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Yoan Perima
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Potensi Kulit Kayu Sebagai Sumber Serat Alam untuk Penguat pada Biokomposit yang Ramah Lingkungan dan Terbarukan: Artikel Review Yoan Perima; Rahmat Iman Mainil
JURNAL SURYA TEKNIKA Vol. 11 No. 2 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i2.8328

Abstract

The increasing awareness of environmental issues has influenced the use of eco-friendly materials, one of which is the use of natural fibers in biocomposites. Plant fibers are one of the sources of natural fibers that can be used as reinforcement in polymer matrix composites. Various studies have been conducted on many types of plants to explore sources of natural fibers. One natural fiber that has potential as a reinforcement in biocomposites is fiber from bark. In terms of physical and chemical properties, bark fibers can meet the criteria for reinforcement in polymer matrix composites. The tensile strength of single fibers from various types of bark ranges from 243.94 MPa to 1608 MPa. When compared to other natural fibers, such as ramie fiber with a tensile strength of 408 MPa and areca palm petiole fiber with 104.12 MPa, it can be concluded that bark fibers are equivalent to or even stronger than several other types of natural fibers. This review aims to provide background and information about the potential of bark fibers through several characterizations and tests, allowing for conclusions to be drawn regarding the feasibility of bark fibers as reinforcement in polymer matrix composites.
Analisis Tegangan pada Jalur Pipa dengan Pemindahan Penopang Akibat Longsor Sepfitrah; Yoan Perima; Mirfaturiqa
JURNAL SURYA TEKNIKA Vol. 10 No. 2 (2023): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v10i2.6160

Abstract

Landslide that has done in the Chevron, Minas oil field area on 4A-54 pipeline section, resulted the failure at one of pipe supports of 12in and 8in pipe diameter. The Action is planned to remove pipe support number 2 which affected a landslide, and move pipe supports number 1 and 3 that is closer to pipe support number 2. For this reason, action is being taken to redesign the piping system so that the pipe line can function safely. Allowable piping design criteria are used based on the maximum distance between pipe supports and maximum stress based on ASME B31.3 standards not greater than 20,000 Psi. Based on the calculation results, the allowable maximum distance between 12 in pipe supports is 16.064 m. Base on stress simulation, the maximum combined tension and torsion stress on the pipeline at that distance is 17606.44 Psi, 12% less than the allowable stress. The combine stress in the pipe produce displacement of pipe in the x-axis direction of 0.074 m and -0.95o.
Co-Authors Mirfaturiqa Rahmat Iman Mainil Sepfitrah