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All Journal International Journal of Electrical and Computer Engineering Jurnal Teknologi Rekayasa Mesin Media Mesin: Majalah Teknik Mesin Indonesian Journal of Science and Technology Jurnal Otomasi Kontrol dan Instrumentasi Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Jurnal Teknik Mesin Indonesia EPI International Journal of Engineering Indonesian Journal of Computing, Engineering, and Design International Journal of Sustainable Transportation Technology Asean Journal of Science and Engineering (AJSE) Indonesian Journal of Multidiciplinary Research (IJoMR) Indonesian Journal of Community and Special Needs Education (IJCSNE) Mechanical Engineering for Society and Industry Automotive Experiences Journal of Mechanical Design and Testing (JMDT) Journal of Community Services: Sustainability and Empowerment Jurnal Polimesin ASEAN Journal for Science and Engineering in Materials
Triawan, Farid
Department Of Mechanical Engineering, Faculty Of Engineering And Technology, Sampoerna University, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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Journal : Indonesian Journal of Science and Technology

 1 
How bibliographic dataset portrays decreasing number of scientific publication from Indonesia Nandiyanto, Asep Bayu Dani; Biddinika, Muhammad Kunta; Triawan, Farid
Indonesian Journal of Science and Technology Vol 5, No 1 (2020): IJOST: VOLUME 5, ISSUE 1, 2020
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v5i1.22265

Abstract

Indonesia faces decreasing in its number during period of 2018-2019 according to SINTA (Indonesian scientific indexing) database. This situation is alarming amid country’s effort to improve its research and development from which the scientific publication has been used as a measure. This article presents a dataset of bibliometric from all Indonesian institutions (424 institutions as of January 2020) indexed by Scopus database. We collected data on documents per year and document type. Different from other datasets, this article presents longitudinal data from 2014-2019, in which during this period dramatic change occurs from steep rise, exponential, and degradation during 2018-2019. We analyzed publication number from leading institutions at different points in time and compared document types (i.e., number of journal article and conference paper, in which both types are the driving force of Indonesia’s growing scientific publication number). Since this dataset covers all country’s institutions, it is potential for reuse by policy makers in research and development, researchers from each institution, as well as other stakeholders.
Failure Investigation of Plastic Shredding Machine’s Flange Coupling Based on Mechanical Analysis Ignatius Pulung Nurprasetio; Bentang Arief Budiman; Farid Triawan
Indonesian Journal of Science and Technology Vol 2, No 2 (2017): IJoST: VOLUME 2, ISSUE 2, September 2017
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v2i2.7988

Abstract

This paper presented the investigation of failure mechanism of plastic shredding machine’s flange coupling which is made of cast steel. The machine unexpectedly stalled a few minutes after High-Density Polyethylene (HDPE) plastic bottles were fed into the machine. It was discovered afterward that the flange broke with the large crack surface. Finite element analysis (FEA) was performed to find the position and value of the critical stresses in the flange during operating condition. Subsequently, hardness test was conducted on the flange body to determine the Brinell hardness which was then converted into the approximate ultimate tensile strength (σu). As a result, a maximum Von Mises stress of 287 MPa was confirmed from the FEA to be concentrated in the flange’s keyway. Although this was found to be lower than the approximate σu obtained from hardness testing i.e. 449 MPa, the critical stress indicated an unstable condition which may induce a crack initiation any time when vibration or dynamic load occurs. Based on these analyses, it was concluded that the failure had been initiated by dynamic rather than static loading generated during machine stall condition. The dynamic load caused crack initiation at a stress concentration point of the keyway. The crack then propagated rapidly, breaking the flange body.
Investigation of Compressive Behavior of Pre-folded Thin-walled Column Fabricated by 3D Printing Farid Triawan; Elin Rachmawati; Bentang Arief Budiman; Djati Wibowo Djamari; Andy Saputro; Ilman Arpi
Indonesian Journal of Science and Technology Vol 6, No 3 (2021): IJOST: VOLUME 6, ISSUE 3, December 2021
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v6i3.39138

Abstract

This paper reveals the mechanical behavior of thin-walled columns with pre-folded patterns subjected to compressive loading. The column specimens (Polylactic Acid) are fabricated using Fused Deposition Modeling 3D printer and subjected to quasi-static compressive loading to investigate their mechanical behavior (by modifying the specimens' cross-section patterns and folding angles). The column specimens are simulated by finite element analysis to understand how the stress distribution and local deformation affecting the stiffness, strength, and overall deformation. The experiments showed that introducing the pre-folded pattern in a thin-walled column with different cross-sections can dramatically lower its structural stiffness (85%) and compressive strength (69%), but increase its deformability (115%), which is good agreement with numerical simulation. The variation of cross-section patterns and pre-folding angle could effectively modify the compressive mechanical behavior. Moreover, the results demonstrate how the FDM 3D Printing method can be used in fabricating a thin-walled column with irregular shapes and then to modify its deformability. This finding can be useful for designing any complex structures requiring specific stiffness and deformation such as suspension devices, prosthetic devices in biomechanics, and robotic structures.
Deburring Method of Aluminum Mould Produced by Milling Process for Microfluidic Device Fabrication Kushendarsyah Saptaji; Farid Triawan; Tong Keong Sai; Asmelash Gebremariam
Indonesian Journal of Science and Technology Vol 6, No 1 (2021): IJOST: VOLUME 6, ISSUE 1, April 2021
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v6i1.31852

Abstract

The existence of top burrs in micro-scale features produced by milling process can deteriorate the surface quality of a product. Ductile metals, such as aluminum alloys, are prone to suffer from top burrs formation after a slot-milling process. A brief review on the state-of-the-art of burr removal process in micro-scale milling is provided in this paper. Various deburring methods were reportedly able to remove the burrs in micro-scale features, however a much simpler method is still needed. In the present work, a deburring process by stainless steel end brushing is introduced for aluminum mould used in microfluidic device fabrication. The micro-scale features are produced by slot-milling process followed by the deburring process. The deburred moulds are then visually observed using optical microscope and Scanning Electron Microscope (SEM) and the average surface roughness and its features profile are measured using 3D Laser Scanning Confocal Microscope. As a result, the proposed deburring method can successfully remove the top burrs, as indicated by a height reduction of about 21% due to the removal action by the brush. Hence, a burr-free embossing mould with complex shape channel features can be produced by milling and by applying a simple deburring process using stainless steel end brush.
Co-Authors AA Sudharmawan, AA Abdi Hanra Sebayang Abdulkareem Sh. Mahdi Al-Obaidi Adi Sutanto Aditiya Harjon Al-Obaidi, Abdulkareem Sh. Mahdi Alfatih, Shahreza Agung Ali, Muchammad Fachrizal Alvin Widjaya Amelia Nuraisyah Quinsi Jemy Anak Agung Ngurah Perwira Redi Anak Agung Ngurah Perwira Redi Andy Saputro Angelica, Putri Antonio, Ryan Anwar Ilmar Ramadhan Ariana Tulus Purnomo Ariq Naufal Rabbani Arnaz Sholeh Arridina Susan Silitonga - Asep Bayu Dani Nandiyanto Asmelash Gebremariam Asriyanti, A. Azhari, Azmir Bahagia, Katherine Luckman Belfaqih, Idrus Husin Bentang Arief Budiman Bilqist Imeilia Az Zahra Bryan, Jonathan Budiarta, Wahyu Nur Budiman , Bentang Arief Budiman, Bentang Arief Chang, Steven Henderson Charline Tiara Rehuellah Pingak Denatra, Geraldy Dewa, Gilang Raka Rayuda Dindamilenia Choirunnisa Hardiyasanti Djamari, Djati Djati Wibowo Djamari Djati Wibowo Djamari Dyota, Arya Smara Elin Rachmawati Eryanto, Ery Fadhila, Fahriza Fernandez, Nikolas Krisma Hadi Fini Bestiara Fitri Endrasari Frandito, Raffy Gabriela Chelvina Santiuly Girsang Girsang, Gabriela Chelvina Santiuly Githa, Arum Given Chris Yuenan Glenn Hanaya Gloria Ellysian Aprilia Hadisujoto, Budi Handani, Nadya Geraldine Hofifah, Siti Nur I Ketut Adhiarta Laksemana Ida Hamidah Ifat, Ifat Ignatius Pulung Nurprasetio Ignatius Pulung Nurprasetio Ihza Lisiano Al Qushai Ilham Prasetyo Ilman Arpi islam, sri susilawati Iwan Setiawan Iza, Nurlaely Rohmatul Kalam, Ikramin Kamila, Fatima Tasya Ken Risa Ayu Ndaru Ningrum Khoiriyah, Nisa Kushendarsyah Saptaji Kusuma, Felicia Laela Nur Fitria Laely Muryanti Lestari, Putri Yuni Lestari, Tika Endah Lubis, Steven Abed Daniel Maria Anggi Octaviani Mei Syaroh Misbakhul Munir Mochammad Rafli Ramadhani Muhamad Rausyan Fikri Muhammad Agni Catur Bhakti Muhammad Akhsin Muflikhun Muhammad Aziz Muhammad Dzulkifly Muhammad Johan Alibasa Muhammad Kunta Biddinika Muhammad, Azka Aulia Mulia, Vania Katherine Musafri Yetti Nanda Indriana Natayu, Amartya Nikolas Krisma Hadi Fernandez Nikolas Krisma Hadi Fernandez Noorfi Azizah Rahim Nurfais, Ahmad Octary, Astrid Vanya Ong, Janice Putra, Indra Pertama Putri, Silmi Ridwan Qurriyatus Zahro Raffy Frandito Rafie Djajasoepena Rahmanda, Wahyu Rakshidatu Lestaluhu Ramadhan, Ammar Ramadhona Saville Reflin, Rhainna Rheizkhira Rizky, Agyl Fajar Robby Dwianto Widyantara Romadhon , Yusuf Safety Husna Pangestika Septiani, Tasya Diana Siagian, Michael Soritua Putrapratama Silmi Ridwan Putri Sineri, Gabriel Ayrton Andares Sinta Widianingrum Siswojo, Nathanael Ansel Siti Nur Hofifah Siti Zulaikah Sri Nararia Anggita Damayanti Surya Danusaputro Liman Sutrisno, Dwiartha Pambudi Alif Syamsuri, Ady Tong Keong Sai Trisnadewi, Titin Tumada, Azhari Unang Solihin Utomo, Muhammad Satrio Vania Katherine Mulia Wahyu Nur Budiarta Wandy Wandy Wibowo, Djati Wildan Rahmawan Yetti, Musafri Zulaikah, Siti