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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) Rekayasa Mesin Jurnal Rekayasa Mesin JOIV : International Journal on Informatics Visualization JURNAL CRANKSHAFT Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Abdi Masyarakat Indonesia Eksergi: Jurnal Teknik Energi Jurnal Hilirisasi Technology kepada Masyarakat (SITECHMAS) Journal of Mechanical Engineering and Applied Technology Jurnal Polimesin Widya Teknik
Putri, Farika Tono
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Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences

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PENGARUH ARAH SERAT RAMI TERHADAP KEKUATAN TARIK DAN STRUKTUR MORFOLOGI KOMPOSIT DENGAN MATERIAL UHMWPE SEBAGAI BONE IMPLANT Susanti, Reny; Hastuti, Sri; Hilmy, Fuad; Saputra, Eko; Putri, Farika Tono; Indrawati, Ragil Tri; Nugroho, Wahyu Isti
JURNAL CRANKSHAFT Vol. 8 No. 4 (2025): Jurnal Crankshaft Vol. 8 No. 4 (2025)
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/cra.v8i4.14044

Abstract

Komposit terdiri dari material penguat dan material matriks. Serat rami merupakan serat alam yang digunakan sebagai bahan penguat dalam komposit. Ultra High Molecular Weight Polyethilene (UHMWPE) merupakan bahan polimer dengan sifat mekanik yang sangat baik dan akan digunakan sebagai matriks dalam komposit. Serat rami yang dikombinasikan dengan biopolimer telah diaplikasikan ke dalam bidang medis. Salah satu bentuk pengaplikasiannya yaitu bone implant plate. Penelitian ini bertujuan untuk menganalisa membahas pengaruh arah sudut serat rami dengan variasi 0°/45°, 0°/90°, 45°/90° dengan Ultra High Molecular Weight Polyethilene (UHMWPE) untuk dijadikan bahan baku biokomposit bone implant plate dengan uji tarik. Nilai kekuatan tarik tertinggi pada variasi arah serat 0°/90° dengan nilai 17 MPa. Variasi arah serat 0°/45° memiliki nilai kekuatan tarik yang paling rendah dengan nilai 16,17 MPa. Hasil analisa SEM penampang patahan uji tarik menunjukkan seluruh variasi mengalami kegagalan berupa fiber pull out
Optimizing curing parameters to enhanced the compressive strength and toughness properties of Resin-Coated Sand (RCS) in foundry applications Khoryanton, Ampala; Harmanto, Sri; Mamba’udin, Ahmad; Alfauzi, Abdul Syukur; Tristijanto, Hery; Abidin, Zaenal; Yanuar, Padang; Putri, Farika Tono; Nugroho, Wahyu Isti; Kristiawan, Timotius Anggit; Sugiono, Friska Ayu Fitriani; Mujiarto, Iman; Riadini, Elfrida Rizky; Wirawan, Yuris Bahadur
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.v23i2.6124

Abstract

Conventional heating methods remain prevalent among small and medium-sized enterprises (SMEs) for aluminum mold thermal regulation during resin-coated sand (RCS) core production. Inconsistent thermal regulation significantly alters the characteristics of resin-coated sand cores. This study aims to investigate the effect of curing parameters on the compressive strength and toughness of the resin-coated sand. The RCS specimens were prepared using an aluminum mold that underwent controlled thermal treatment in an electrical furnace. The thermal treatment is performed by processing specimens across a curing temperature range of 200-300°C and varying curing time from 3 to 15 minutes. HDPE polymer was proposed as the RCS binder. Compressive and impact tests were carried out to determine the characteristics of resin-coated sand. The results showed a non-linear relationship between curing parameters and mechanical properties. Although moderate curing time and higher temperatures initially improve compressive strength and toughness, exceeding optimal thresholds leads to the degradation of these mechanical characteristics. The highest mechanical properties (compressive strength = 38.4 MPa, toughness = 0.43 MPa) are achieved through a curing temperature of 250°C and a curing time of 9 minutes. This study provides valuable insights into determining the optimal parameters for processing resin-coated sand cores or molds with superior compressive and toughness properties.
Co-Authors A Fauzi, Abdul Syukur Agus Slamet Ahmad Jalaludin, Ahmad Ahmad Mamba'udin Alfauzi, Abdul Syukur Amarta, Rona Zaqqi Andreyanto W, Mirda Anggit, Timotius Anis Roihatin Atmojo, Slamet Priyo Ayu S, Friska Balqis Balqis Bayu Setyo Nugroho Bono Bono Budhi Prasetyo Carli Carli DWI RAHMAWATI Eko Saputra Eko Saputra Elfrida Rizky Riadini Fathoni, Achmad Luthfian Firmansyah, Erik Fuad Hilmy Gutomo, Gutomo Hery Tristijanto Huda, Evan Hardi Nurul Huda, Mohammad Ragil Nur Ikhsan, Ivan Hardi Nurul Indra, Ragil Tri Indrawati, Ragil Tri Ismail, Rima Ruktiari Isti Nugroho, Wahyu Kabir, Noer Ni'mat Syamsu Kadavi, Fadhil Kadavi, Fadhil Muhammad Khoryanton, Ampala La Ode Ichlas Syahrullah Yunus Luthfiansyah, Galih M. Yogi Riyantama Isjoni Mara, Muhlasah Novitasari Margana Margana Mochammad Ariyanto Muryanto Nailul Ulum, Muhammad Showi Nashrullah, Miftah Nugroho , Bayu Setyo Nugroho, Agung Nugroho, Irvandianto Padang Yanuar Pasmanasari, Elta Diah Prabowo, Muhamad Cahyo Ardi Prasetyo, Sandif Pratama, Fandy Indra Pratama, Galang Dimas Prawibowo, Hartanto Purnomo, Adhy Purwati, Wiwik R., Rizkha Ajeng Rachman, Fathur Rafsanjanu, Swastika Pascal Rifky Ismail Rochmatika, Rizkha Ajeng Rohmatika, Rizka Ajeng Safirana, Eni Safriana, Eni Sahid Sahid Sai'in, Ali Satito, Aryo Setiyawan, Trio Sidiq Syamsul Hidayat, Sidiq Syamsul Sitepu, Rasional Slamet Priyoatmojo, Slamet Solly Aryza Sri Harmanto Sri Hastuti Sri Wahyuni Sriharmanto, Sriharmanto Sugiono, Friska Ayu Fitriani Supandi Supriyo Supriyo Supriyo Susanti, Reny Timotius Anggit Kristiawan Tristidjanto, Hery Triyono, Liliek Wahyu Isti Nugroho Xander Salahudin Yuris Bahadur Wirawan, Yuris Bahadur Yusuf Dewantoro Herlambang Zaenal Abidin