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All Journal JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY JOURNAL OF CIVIL ENGINEERING, BUILDING AND TRANSPORTATION Jurnal Rekayasa Material, Manufaktur & Energi Journal of Applied Engineering and Technological Science (JAETS) Budapest International Research in Exact Sciences (BirEx Journal) JTTM: Jurnal Terapan Teknik Mesin IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Inovtek Seri Mesin IRA Jurnal Pengabdian Kepada Masyarakat
Achmad Jusuf Zulfikar
Universitas Medan Area
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation Other

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Analisis Kekuatan Tarik Komposit Laminat Jute Berdasarkan Pola Kerusakan Kolom Silinder Metode Split Tensile Test Al Rasyid, Al Rasyid; Jusuf Zulfikar, Achmad; Iswandi, Iswandi
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 2 (2022): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v1i2.15

Abstract

The purpose of this study is to obtain the damage pattern of cylindrical column concrete specimens (BKS) reinforced with laminate jute composite (KLJ) based on the results of the Split Tensile Test, to determine the phenomenon of applying laminated jute composite reinforcement to cylindrical column concrete on the percentage of crack patterns ( PPR) specimens, and analyze the comparison between split tensile strength (KTB) and PPR. The test specimens were printed based on the ASTM C496 test standard using the Vacuum Bagging method. Specimen variations consist of 1 to 4 layers of KLJ and one variation without KLJ sheath as a control specimen. The split tensile test used the UTM test tool with each variation being carried out with 3 repetitions. PPR observations and calculations were carried out with the help of Adobe Photoshop software. The results of the study show that the greater the KTB value, the greater the PPR that occurs. The increase in PPR in each KTB is reported in this article.
Analisis Metode Split Tensile Test Komposit Laminat Hybrid Jute E-Glass Akibat Beban Tarik Beton Kolom Silinder Tambusay, M. Ibnu; Zulfikar, Achmad Jusuf; Iswandi, Iswandi
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 2 (2022): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v1i2.16

Abstract

In this study, reinforcement of the concrete structure was done by coating it with a laminate composite material from a combination of reinforcement from natural materials (woven jute cloth sheets) and synthetic materials (woven e-glass fiber sheets). The purpose of this study was to determine the split tensile strength of cylindrical column concrete (BKS) using the split tensile test method due to the application of e-glass laminate hybrid composite sheath (KLHJG), to analyze the validity of the data using the normally distributed data method (DTN). on the results of the shear strength test of the KLHJG sheath as reinforcement for BKS, and analysis of the effect of applying KLHJG's sheath on the tensile strength of BKS. Specimens were printed based on the ASTM C496 test standard by immersion in clean water for 28 days and drying in the open air for 28 days. The KLHJG variation consists of JGJ, JJG, JJJG, JGJG, and GJGJ. Each variation consists of 3 repetitions of the test. The process of providing KLHJG casings to BKS uses the Vacuum Bagging method. Data validity uses the probability density function method. The results of the study show that the provision of KLHJG can increase the split tensile strength by up to 800%. Thus, the KLHJG application has the potential to be applied as a BKS booster.
Analisis Kekuatan Tarik Belah Komposit Laminat Jute sebagai Penguat Beton Kolom Silinder Berdasarkan Metode Penyerapan Energi Bahan Lubis, Pramdya A.T.; Zulfikar, Achmad Jusuf; Iswandi, Iswandi
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 2 (2022): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v1i2.21

Abstract

The purpose of this study is to calculate the amount of energy that can be absorbed (toughness) of the material based on the graph of the results of the split tensile test of cylinder column concrete specimens (BKS) reinforced with laminated jute composite (KLJ) and analysis of the comparison between split tensile strength (KTB) and material toughness from the results split tensile test of BKS specimen reinforced by KLJ. The test specimens were printed based on the ASTM C496 test standard using the Vacuum Bagging method. Specimen variations consist of 1 to 4 layers of KLJ and one variation without KLJ sheath as a control specimen. The split tensile test used the UTM test tool with each variation being carried out with 3 repetitions. Calculation of Material Toughness Energy (EKB) using the Trapezoidal Numerical Integration method. The results of the study showed that giving KLJ boosters to BKS was able to increase EKB up to more than 1000% starting with 2 layers of sheathing. Thus the provision of KLJ to BKS can be recommended as a strengthening material for concrete column structures.
Analisis Kekuatan Mekanik Komposit Polimer Diperkuat Serbuk Kulit Kerang Zulfikar, Achmad Jusuf; Ritonga, Din Aswan A.; Pranoto, Siswo; Nasution, Fadly A. Kurniawan; Arif, Zainal; Junaidi, Junaidi
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.13599

Abstract

In recent decades, the development of composite material technology has continued to increase rapidly and has been used for various applications as an alternative material to replace metal. In line with growing environmental issues, the utilization of natural materials which are abundant in nature and easy to find is the main priority for composite building materials. In this study, shell powder was used as a reinforcing material for epoxy polymer composites. The aims of this study were to obtain the average compressive, tensile, and flexural strength of shell powder-reinforced polymer composite materials, to calculate the distribution of test results using the PDF method, and to calculate the contribution of shell powder to the mechanical properties mentioned using the ANOVA method. The tensile, compressive, and flexural test specimens follow the test specimen standards of ASTM D638, ASTM D7264, and ASTM D695 respectively. The composition of shell powder consists of 10%, 30%, and 50%. Testing of these mechanical properties using a UTM-type hydraulic test equipment model WEW-300D with a capacity of 300 kN. The test results show an increase in the mechanical properties of the material. The increase occurred in compressive and flexural strength where the composition was given up to 30% and 50%, namely between 120 – 125 MPa. However, increasing the composition of shell powder at 30% and 50% actually resulted in a decrease in tensile strength between 12 – 9 MPa. Finally, based on the results of ANOVA analysis, it was shown that the addition of shell powder as a reinforcement for polymer composites significantly improved their mechanical properties.
Analisis Kekuatan Mekanik Pipa Air dari Bahan Komposit Serbuk Kulit Kerang Zulfikar, Achmad Jusuf; Siahaan, M Yusuf R; Irwan, Ade; Nasution, Fadly A. Kurniawan; Ritonga, Din Aswan A.
Rekayasa Material, Manufaktur dan Energi Vol 5, No 2: September 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i2.11938

Abstract

Shellfish is one of the sources of natural wealth that is quite abundant and easy to obtain in the province of Sumatera Utara. In this study, shellfish will be used as an alternative raw material for the manufacture of water pipes. This study aims to obtain the average strength of the material against the bending and compressive loads imposed on the outer surface of the water pipe, calculate the distribution of the test result data by the Probability Density Function (PDF) method, and calculate the contribution of clamshell powder to the bending and compressive strength of the water pipe with the Anova and Tukey methods. Specimens are molded in the form of 2" water pipes according to SNI standards 06-0084-2002. Bending and pressing testing using ASTM D7264 and ASTM D695 respectively. Processing the distribution of test data using the PDF method, the calculation of variable contributions using the Anova method, and the comparison between variables with the Tukey method. The result obtained the best bending strength at a composition of 10% by weight, namely 3.3177 MPa, and the best compressive strength at a composition of 50% by weight of 4.37 MPa. Based on the calculations of the Anova and Tukey methods, the application of clamshell powder significantly affects the bending strength compared to its compressive strength, which is the composition of 10% by weight.
Analisis Kekuatan Tekan Selubung Komposit Laminat E-glass pada Beton Kolom Silinder dengan Metode Vacuum Bagging Siregar, Doni Alfiah; Zulfikar, Achmad Jusuf; Siahaan, M. Yusuf Rahmansyah; Siregar, Rakhmad Arief
Rekayasa Material, Manufaktur dan Energi Vol 5, No 1: Maret 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i1.10259

Abstract

This study aims to obtain the average compressive strength of cylindrical column concrete specimens reinforced with an e-glass fiber laminate composite wrap based on variations in the number of wraps. In addition, in this study, the compressive strength and damage patterns will be analyzed to obtain the performance of the sheath in the concrete structure. The test specimens were molded according to the ASTM C39 standard with a diameter of 50 mm and a length of 150 mm. The process of applying laminated composite wrap to concrete specimens is carried out using the vacuum bagging method. The compressive strength test on the specimen is carried out by providing an axial load on the specimen until it failures. The results obtained are that the compressive strength of the specimen has increased significantly due to the provision of e-glass fiber wrap. A significant increase in the compressive strength of concrete specimens occurred in 3 layers of e-glass fiber wrap which reached more than 60%. Furthermore, the ability of the e-glass fiber wrap in protecting the cylindrical concrete structure due to the applied load also experienced an increase in performance in the 2 and 3 layers of the e-glass fiber wrap.
Pelatihan Penggunaan Mesin Sekrap Bagi Mahasiswa di Growth Centre LLDIKTI Wilayah - I Zulfikar, Achmad Jusuf; Supriatno, Supriatno; Candra, Ifan Aulia; Nurdiana, Nurdiana
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 1 No 1 (2023): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v1i1.53

Abstract

Shaping machine training for students significantly benefits developing technical skills, preparing them for the world of work, and increasing their understanding of manufacturing processes and job safety. A shaping machine is a tool to machine metal surfaces using a reciprocating linear motion. This machine uses a blade moving back and forth to remove a thin metal layer from the work surface and create the desired shape. It is essential to adapt the training method to the needs and characteristics of the participants and provide a safe and conducive environment for learning and practising the use of the shaping machine. Evaluation of technical skills, assessment of theoretical knowledge, and review of the work results of the participants. The experience gained during the training will vary for each participant depending on background, level of expertise, and commitment to learning. The results of this training are expected to increase knowledge and understanding of shaping machines. Participants will learn in-depth about the basic principles of shaping machines, their components, and proper operating techniques.
Analisis Potensi Energi Angin Menggunakan Turbin Horizontal di Kawasan Wisata Mangrove Desa Tanjung Rejo, Kecamatan Percut Sei Tuan Idris, Muhammad; Zulfikar, Achmad Jusuf; Darianto, Darianto; Iswandi, Iswandi; Jufrizal, Jufrizal; Hermanto, Tino; Haniza, Haniza; Harahap, Uun Novalia
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 2 No 2 (2024): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v2i2.125

Abstract

The tridharma of higher education is the main task and function for every lecturer that must be carried out every semester. One of the activities of the tridharma of higher education is community service which aims to make a scientific contribution owned by each lecturer. On this occasion, the UMA mechanical engineering study program had the opportunity to carry it out in Tanjung Rejo village, Percut Sei District. The master who owns the mangrove forest tourist attraction. The tourist attraction is located on the coast of the Strait of Malacca, where geographically it has the potential for renewable energy, namely wind energy. Based on the measurement data, the average wind speed was obtained 2 m/s. From the potential power that can be generated through a horizontal type wind turbine theoretically 59.8 W. Actually, this turbine has an average power of 20.9 W. This difference occurs due to an efficiency factor of 35%. The potential of wind energy in Tanjung Rejo Tourism Village is very promising for development. This effort will not only increase the energy independence of the village, but also reduce carbon emissions and preserve the environment.
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
Co-Authors Ahmad Rivaldo Aji Tyas Muzakir Al Rasyid, Al Rasyid Ari Purnomo Arif, Zainal Azwir Sofyan Bincar Orlando Simanjuntak Bobby Umroh Bobby Umroh Danis Nainggolan Darianto Darianto Darianto, Darianto Derlini Derlini Diko Alamsyah Din Aswan A Ritonga Din Aswan A. Ritonga Din Aswan A. Ritonga Glusevic, Jean Gustami Harahap Haniza Harahap, Uun Novalia Ibnu Hajar Ifan Aulia Candra Indra Hermawan Irwan, Ade Iswandi Iswandi Iswandi Iswandi Jean Glusevic Johannes J.B. Butar Butar Joko Joko Jufrizal Jufrizal Junaidi Junaidi Lubis, Pramdya A.T. M Yusuf Rahmansyah Siahaan M. Dalil M.Y. Yuhazri Mohd Yuhazri Yaakob Muhammad Idris Muhammad Yusuf R. Siahaan Muhammad Yusuf Rahmansyah Siahaan mulia Nainggolan, Danis Nasution, Fadly A. Kurniawan Nurdiana Nurdiana Nurul Hidayat Nurul Hidayat Purnomo, Ari Rahmad B.Y Syah Rakhmad Arief Siregar Ritonga, Din Aswan A. Rivaldo, Ahmad Rizal Afandi Purba Roy Lamrun Sianturi Ruli Bay Syahputra Sahat Maruli Sihombing Siahaan, M Yusuf R Siahaan, M. Yusuf Rahmansyah Siahaan, Muhammad Yusuf Rahmansyah Siregar, Doni Alfiah Siswo Pranoto Siswo Pranoto Sofyan, Azwir Supriadi Supriatno, Supriatno Tambusay, M. Ibnu Tino Hermanto Toni Erdiansyah Weriono Yuhazri M.Y. Zakir Husin Zakir Husin