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All Journal JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY Journal of Applied Engineering and Technological Science (JAETS) JTTM: Jurnal Terapan Teknik Mesin IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Achmad Jusuf Zulfikar
Universitas Medan Area
Aerospace Engineering Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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ANALISIS KEKUATAN STRUKTUR RANGKA MESIN PENGERING BAWANG MENGGUNAKAN PERANGKAT LUNAK ANSYS APDL 15.0 Azwir Sofyan; Jean Glusevic; Achmad Jusuf Zulfikar; Bobby Umroh
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol 3, No 1 (2019): EDISI JUNI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v3i1.2417

Abstract

Typical technology for processing red onion affects the quality of red onion produced. The process of drying red onion is one of the important factors in producing the best quality of red onion. Environmentally friendly and easy operation and maintenance technology is the desired technology. In the process of engine design, the strength of the material and structure are the main factors of the building of the machine. Calculation with finite element method (FEM) is the best choice to obtain information on stress distribution on a machine structure. In this study, the calculation of the FEM method was assisted by Ansys APDL 15.0 software. The objectives of this study were: (1) calculation of the load on the tray structure, (2) the distribution of stress on the tray structure, seat, and frame for red onion dryers, and (3) analyzing the strength of the material using the Tresca and Energy Distortion methods. The input load comes from the weight of the tray and red onion. The analytical method used is the finite element method with the type of structural analysis and Beam 3Node 189 element type. Based on the FEM simulation results, the maximum stress that occurs in the tray is 1.22 MPa and the maximum deflection is 0.0055 mm. The maximum stress in the tray support structure is 33.25 MPa and the maximum deflection is 0.014 mm. The maximum stress on the frame structure of the onion drying machine is 0.89 MPa and the maximum deflection is 0.000235 mm which occurs in the middle of the machine structure. Using the Tresca and Distortion Energy theories, it is found that the stresses that occur are still far from the failure criteria for all structures. Likewise, the deflection that occurs is very small so that the construction of the onion drying machine is safe to use.
Penyelidikan Kegagalan pada Alat Pemisah Karet Alam Jenis LRH 410 Derlini Derlini; Achmad Jusuf Zulfikar
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 3 (2022): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v1i3.34

Abstract

This study is an investigation into the causes of failure in a part of a natural rubber separator with water known as a Centrifuge type LRH 410. The part that is damaged is the lock ring which functions as the main lock. The purpose of this study was to obtain a comparison of the values of tensile strength, material hardness, and the composition of the constituent elements of the two types of locks. This investigation includes a field visit to the incident location to collect initial failure data and send samples to the laboratory. Specimens are divided into 2 types, namely damaged lock ring material (LR-R) and good lock ring material (LR-B). Tensile testing was carried out using the standard E8M-99 ASTM metric system. The hardness test uses the Brinell hardness test method. Observation of the microstructure of the lock ring (specimen) aims to determine the microstructure of the specimen. Analysis of the composition of the elements of the lock ring material using a spectrometer. The results of the tensile test showed that the yield strength of the LR-R material was only 50% compared to LR-B. Based on the material hardness test, it can be seen that the LR-R hardness value is lower than LR-B. Based on the results of the composition test, it was found that the content of the element Carbon in LR-R was 50% lower than that of LR-B. Thus the LR-R material will wear out faster when operated compared to the LR-B material.
Analisis Kekuatan Komposit Laminat Hybrid Jute E-Glass Berdasarkan Pola Kerusakan dengan Metode Split Tensile Test Rizal Afandi Purba; Achmad Jusuf Zulfikar; Iswandi Iswandi
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 3 (2022): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v1i3.37

Abstract

Research on composite materials continues to experience significant development in line with human needs for products that are lighter, stronger, easier to form, environmentally friendly, and low cost. Alternative materials sourced from natural materials such as the Jute plant combined with synthetic e-glass materials are a top priority to achieve the target of materials that are strong but environmentally friendly. In this study, the investigation aimed to analyze the effect of applying hybrid laminated composite materials of woven jute fiber sheets and e-glass (KLHJG) to cylindrical column concrete by calculating the percentage of the crack pattern (PPR) that occurs and then comparing it to the split tensile strength (KTB). ) to get the phenomenon that occurs. Specimens were printed using the ASTM D496 standard for splitting tensile strength testing. PPR is calculated using the Histogram method with the help of Adobe Photoshop software. The result obtained is that the provision of KLHJG on cylindrical column concrete can reduce PPR to below 20%. However, the JGJG composition obtained a PPR greater than 30% which indicates that this composition is not very effective in protecting the concrete structure against the external load it is subjected to.
Application of E-Glass Jute Hybrid Laminate Composite with Curved Shape on Compressive Strength of Cylindrical Column Concrete Achmad Jusuf Zulfikar; Mohd Yuhazri Yaakob; Rahmad Bayu Syah
Journal of Applied Engineering and Technological Science (JAETS) Vol. 5 No. 1 (2023): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v5i1.2072

Abstract

This study provides a better understanding of reinforcing cylindrical concrete columns (CCC) using a hybrid laminated composite material (HLC) composed of jute and e-glass fibers, including the influence of layer quantity on strength and a comparison with previous research. The utilization of these alternative materials may lead to the development of novel and efficient solutions for constructing durable and robust structures. The primary objectives of this research are to assess the effects of employing HLC as a reinforcing layer on CCC compressive strength, optimize the reinforcement process by selecting appropriate layer sequences and types, and analyze the type of fiber damage in relation to the strength of HLC composite material. The materials utilized in this study encompass woven jute fabric sheets, e-glass fiber sheets, and epoxy resin. Compressive strength testing was conducted following ASTM C39 standards. Specimen variations were based on the number and type of reinforcing layers. The results revealed that CCC compressive strength increased by up to 100% with the application of up to three layers of jute compared to an unlayered specimen. Furthermore, CCC compressive strength experienced a remarkable enhancement of up to 150% with the incorporation of HLC composite. Hence, the implementation of HLC demonstrates significant potential for augmenting the strength of concrete structures.
Water flow simulation in a pelton turbine bucket with variable bucket dimensions using computational fluid dynamic Muhammad Idris; Weriono Weriono; M Dalil; Indra Hermawan; Joko Joko; Achmad Jusuf Zulfikar; M.Y. Yuhazri
JTTM : Jurnal Terapan Teknik Mesin Vol 4 No 2 (2023): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Sekolah Tinggi Teknologi Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v4i2.633

Abstract

Today, especially among industrialized and developing nations, the usage of renewable energy sources is growing in popularity as a means of supplying energy needs. One of the renewable energy sources that is now being heavily exploited in Indonesia is the potential of water that may be used as a source of electrical energy by establishing a hydroelectric power plant (PLTA). One of the turbines that is frequently used in hydropower plants as a part that may transform water's kinetic energy into mechanical energy is the Pelton turbine. There is not a lot of literature on the design of Pelton turbine buckets. In order to determine the most ideal bucket dimensions that can be used with Pelton turbines, this study presents the conceptual and experimental components of the design and analysis of Pelton turbines based on bucket variations. AutoCAD was used to model the bucket and Pelton turbine, and ANSYS Fluent was used to perform the simulation so that results could be analyzed later. By comparing the simulated data of the blade variants 1 and 2, the ideal blade dimension variation is identified by the blade simulation of variant 1. The blade variation 2 with average torque of 5.859 Nm, average angular velocity of 40.822 rad/s, and average power of 242,970 watts is the most ideal blade. With an average torque of 4,735 Nm, an average corner speed of 40,404 rad/s, and an average power of 196,794 W, the blade 3 model has lower values
The Influence of e-glass epoxy composite laminate material application on the crack pattern of cylinder concrete column cross-section Achmad Jusuf Zulfikar; Din Aswan A Ritonga; Ari Purnomo; Toni Erdiansyah; Ahmad Rivaldo
JTTM : Jurnal Terapan Teknik Mesin Vol 5 No 1 (2024): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Sekolah Tinggi Teknologi Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v5i1.889

Abstract

In order to better understand the phenomenon of applying GEC reinforcement to RCC based on the percentage of surface crack pattern (PCP), this research will use e-glass epoxy composite laminate (GEC) to obtain the damage pattern of reinforced concrete column specimens (RCC) utilizing GEC. Additionally, it will compare the splitting tensile strength (STS) and SCP. In accordance with ASTM C496 guidelines, the RCC specimens used in this investigation had a cylindrical shape and measured 150 mm in length and 50 mm in diameter. GEC material, consisting of 0–4 layers of woven e-glass fiber sheets, was applied as an extra layer on top of the RCC. In compliance with ASTM C496 guidelines, a Universal Testing Machine (UTM) was used to perform the split tensile test. With the aid of Adobe Photoshop software, the Histogram approach was used to calculate the crack pattern's proportion. The study's findings demonstrated that the specimens reinforced with four layers of GEC exhibited the highest damage pattern. This suggests that the reinforced specimens must be subjected to a sizable load in order to be damaged. Hence, the damage that occurs in the specimens can be lessened by applying GEC layers on RCC. Further information about the performance of RCC reinforced with GEC is also provided by a comparison of the splitting tensile strength and the percentage of fracture pattern
Efficacy of jute-glass hybrid laminate composite wrapping under flexural loading Achmad Jusuf Zulfikar; Siswo Pranoto; Din Aswan A. Ritonga; Johannes J.B. Butar Butar; Bincar Orlando Simanjuntak
JTTM : Jurnal Terapan Teknik Mesin Vol 5 No 2 (2024): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Sekolah Tinggi Teknologi Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v5i2.1214

Abstract

The demand for sustainable engineering materials has catalyzed interest in hybrid composites that combine natural fibers like jute with synthetic fibers such as E-glass. This study investigates the flexural strength of jute/E-glass/epoxy hybrid composite laminates under different stacking sequences, employing the ANOVA method to analyze their mechanical performance. The materials, including jute fabric, E-glass fabric, and epoxy resin, were arranged in various configurations and tested for flexural strength following ASTM D790 standards. The results indicated significant variability, with the GJGJ configuration exhibiting the highest average flexural strength of 71.20 MPa, while the GJG configuration had the lowest at 26.33 MPa. The ANOVA analysis confirmed a statistically significant effect of laminate configuration on flexural strength (F = 6.41, p = 0.004). These findings underscore the critical role of laminate arrangement in enhancing the mechanical properties of hybrid composites. The superior performance of the GJGJ configuration suggests that alternating layers of jute and E-glass fibers can effectively distribute stress and enhance load-bearing capacity. Conversely, suboptimal configurations like GJG demonstrated lower performance, highlighting the importance of strategic fiber arrangement. This research contributes to the development of optimized hybrid composites for various engineering applications, providing valuable insights into the interplay between natural and synthetic fibers within a composite matrix. The study's conclusions support the broader use of hybrid composites in industries such as automotive, construction, and aerospace, where material sustainability and performance are paramount. Future research should explore further optimization of stacking sequences and volume fractions of fibers, as well as investigate other mechanical properties such as tensile and impact strength, to fully realize the potential of hybrid composites in advanced engineering applications
Co-Authors Ahmad Rivaldo Ari Purnomo Azwir Sofyan Bincar Orlando Simanjuntak Bobby Umroh Derlini Din Aswan A Ritonga Din Aswan A. Ritonga Indra Hermawan Iswandi Iswandi Jean Glusevic Johannes J.B. Butar Butar Joko Joko M. Dalil M.Y. Yuhazri Mohd Yuhazri Yaakob Muhammad Idris Rahmad B.Y Syah Rizal Afandi Purba Siswo Pranoto Toni Erdiansyah Weriono