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All Journal Rekayasa Mesin JURNAL INSTEK (Informatika Sains dan Teknologi) JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Infotekmesin Jurnal Riset Teknologi Pencegahan Pencemaran Industri Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Journal of Applied Mechanical Engineering and Renewable Energy (JAMERE) INJECTION: Indonesian Journal of Vocational Mechanical Engineering
Wicaksono, Dhimas
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Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Effect Of Nano Reinforced Adhesive AL Powder And Cnt On Bending Strength Of Hybrid Laminate Structure AL - CFRP Anhar, Muh; Laksana, Lintang Bayu Adi; Wicaksono, Dhimas; Setiawan, Fery
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 16 No. 1 (2025): May
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2025.v16.no1.p51-60

Abstract

Amphibious aircraft are types of aircraft that can land on land and in water with floating components (floaters).  Amphibious aircraft are capable of landing both on land and water using float-equipped structures. In its operation, it is likely to have a bending force on the floater. When the floater is replaced with a hybrid composite, it is likely to have a light load and high beding value bending value. During operation, the floater is subjected to significant bending forces. Replacing the floater with a hybrid composite results in a lighter structure with improved bending strength. This study aims to analyze the bending test of hybrid composites reinforced with carbon fiber and aluminum faceplates. This study aims to evaluate the bending strength of hybrid composites reinforced with carbon fiber and aluminum faceplates. The method used in this study is vacuum bagging, where the sample is combined with epoxy resin and mixed with carbon nanotube (CNT) nanoparticles and aluminum powder (AL). The study was conducted with adhesive resin, surface treatment and the addition of nano particles to determine the effect of the bending strength of the composite. This study aims to analyze the effect of surface treatment and nanoparticle addition on the flexural strength of the hybrid composite.  The results showed that had a high bending value compared to the variation of specimens without surface treatment or nano particles. Specimens treated with surface modification and nanoparticles exhibited higher bending strength than those without either treatment. The highest bending stress value was obtained by the CNT variation of 133.89 MPa followed by the variation without nano particles of 98.59 MPa, then the variation without surface treatment of 91.76 MPa, and the one with the smallest value was the AL variation of 61.02 MPa. Macro photo analysis after bending test shows the presence of Mixed-mode defects in the specimen. This shows that specimens that have surface treatment and nano particles have better bonds and are able to fill the void in the empty area, so that the bending strength is good. This study provides an important contribution to understanding the variation of adhesives and nano particles on the bending strength of hybrid composites. This study offers preliminary insights into how variations in adhesives and nanoparticles influence the bending strength of a specific hybrid composite system.
Analisis Intensitas Turbulensi Terhadap Kestabilan Kecepatan Angin Test Section pada Struktur Wind Tunnel Arif Pratama, Riza; Ikhsan, Muhammad; Wicaksono, Dhimas; Rieza, M. Safiq; Zainal Abidin , Munir
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2511

Abstract

Wind tunnels in aerodynamic testing always have very large sizes to avoid high turbulence intensity. Turbulence intensity analysis is used to determine the size of a smaller wind tunnel to be more efficient in limited space. The use of epoxy fiber resin material is because lighter than aluminum with a thickness of 5mm. The purpose of the study was to produce a wind tunnel with a small size with low turbulence intensity and minimize large manufacture costs. The method used is constructive to analyze the wind tunnel design in determining the maximum wind flow speed at test section does not exceed the turbulence intensity limit. The results of the analysis showed that the wind tunnel structure design has the ability to receive an inlet wind flow of 5 m / s with a maximum wind flow speed at the test location of 10.7 m / s. The wind tunnel design cannot exceed the maximum wind flow speed at the test section because it will produce turbulence intensity above 5% which affects the test result.
Improving the production and managerial performance of tempeh chip MSMEs Setiawan, Ferry; Wicaksono, Dhimas; Rizki, Ikbal; Hillal, Raden Fatchul; Widagdo, Djoko; Mahendra, Dimas Aditya
Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Vol 7 No 1 (2024)
Publisher : University of Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jipemas.v7i1.20989

Abstract

The Community Service Program of STTKD Lecturers is funded by the Directorate of Research and Community Service of the Ministry of Education and Culture due to the problems faced by Micro, Small, and Medium Enterprises (MSMEs) of tempeh chips brand "Tempe Krees", including; low production capacity, inability to meet market demand, poorly organized managerial processes, and unattractive product branding that hinder online market penetration. The solution provided by the Community Service Team in the technological field is to increase the productivity of tempeh chips by using appropriate technological equipment, such as a soybean skin separator machine, tempeh slicing machine, and oil separator machine. In the managerial field, management and marketing training is conducted to reach a wider market share and improve packaging design to increase product branding in order to penetrate the online market. The result of this program is that the managerial competence of the partners has improved, as can be seen from the results of the posttest which has a better value than the pretest results. With the application of appropriate technology equipment, the production of tempeh chips increased from 50-55 pieces @ 250 grams per day to 100-110 pieces @ 250 grams per day. Production costs have decreased from Rp11,025 to Rp9,932, so the profits of MSME partners have increased from before. The next step after this community service is to encourage partners to penetrate the modern market so that partner businesses can develop well and trigger economic growth in the community around the location of MSMEs.
EFFECT VARIATION OF TEMPERATURE AND STIRRING SPEED ON THE BENDING TEST OF FIBERGLASS FIBER COMPOSITE MATERIALS USING THE VACUUM ASSISTED RESIN INFUSION (VARI) METHOD Setiawan, Ferry; Sakti , Faras Bimo; Wicaksono, Dhimas
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1469

Abstract

This study aims to investigate the effect of temperature with constant agitation at 164 rpm on the fabrication of composite materials using the Vacuum Assisted Resin Infusion (VARI) method. In this research, composite materials were made with a polyester resin matrix reinforced with fiberglass. The challenge in the VARI process, which is the difficulty in controlling the viscosity of the solution when infused into the fibers, was addressed by using a stirrer in the feed resin tank. Heating was intended to increase the surface tension of the resin, allowing it to better penetrate the fibers. The variations used were stirring at a speed of 164 rpm and heating temperature variations of 28°C, 35°C, and 50°C. By stirring and heating the resin and catalyst solution, it is expected to achieve a more uniform viscosity, resulting in better composite material compared to methods without heating and without mixing. Based on the test results, the highest average bending strength was found in the specimen stirred with a mixer at 35°C, with a value of 359.91 MPa. The lowest average bending strength was found in the specimen with a temperature variation of 28°C, with a value of 133.7 MPa, and the bending strength at the temperature variation of 50°C was 348.81 MPa. The impact on bending strength is due to the presence of voids, which are gas or air trapped within the specimen structure. This is evidenced by micrographic analysis and density measurements, where the 28°C variation had the lowest density of 2.01 gr/cm3, while the 35°C and 50°C variations had the same density of 2.41 gr/cm3.
Co-Authors Adiksa, Ekklesia Christian Aditya Mahendra, Dimas Akmal Akmal assidiq, maulana hasbi Chalik, Faturrahman Endy Aditya, Virgiawan Ferry Setiawan Fery Setiawan Hillal, Raden Fatchul Laksana, Lintang Bayu Adi Mahendra, Dimas Aditya Muh Anhar Muhammad Ikhsan Muhammad Luqman Bukhori Nurdiana, Yuda Qayyum, A Rieza, M. Safiq Ristiawan, Bayu Ristiawan Riza Arif Pratama Rizki, Ikbal Romadhon, Doni Sakti , Faras Bimo Satrya Buana, Allan Widagdo, Djoko Zainal Abidin , Munir