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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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Numerical Analysis of Polymer Foam Composite Material (PFCM) Reinforced by Palm Empty Bunch Fiber (PEBF) at Fracture Point Due to High Strain Impact Load Achmad Jusuf Zulfikar; Siswo Pranoto; Bobby Umroh; Darianto Darianto; Gustami Harahap
Budapest International Research in Exact Sciences (BirEx) Journal Vol 2, No 1 (2020): Budapest International Research in Exact Sciences, January
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v2i1.694

Abstract

In general, polymer composite materials are molded in solid form and avoid the occurrence of gas bubbles trapped in the matrix. The resulting material becomes rigid and does not have a good ability to absorb the load given. At this time, innovations in the field of composite materials have been carried out and produced polymer composite materials with foam-shaped structures that are able to reduce the load given. In this study, a composite foam material reinforced with PEBF fiber was tested with an impact dynamic load and the test results were numerically analyzed by the finite element method. The purpose of this study is to obtain the stress distribution at the fracture point due to the impact of dynamic loads at high strain rates with the finite element analysis method. Impact dynamic test using the Air Gun Compressor (AGC) test with an impact pressure of 0.2 – 0.8 MPa. Strain wave propagation in the test specimen was recorded using two strain gauges. Numerical analysis is carried out with the help of Msc. Nastran software. Experimentally, a failure in the specimen occurred at an impact pressure of 0.4 MPa and an impact distance (ID) of 500 mm. Strain wave propagation time in the specimen averaged 37.5 ms, at which time the tensile and compressive stresses intersected at a distance of about 120 to 155 mm from the starting point of loading. The magnitude of the stress distribution in the range of the fracture zone is between 800 to 900 MPa.
The Flexural Strength of Artificial Laminate Composite Boards made from Banana Stems Achmad Jusuf Zulfikar
Budapest International Research in Exact Sciences (BirEx) Journal Vol 2, No 3 (2020): Budapest International Research in Exact Sciences, July
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v2i3.1070

Abstract

Wood is a forest product that is used as raw material for building construction. The increase in demand for wood causes damage to the environment and the ecosystem. Therefore, investigation is needed to find alternative materials that can replace the old wood. On the other hand, Indonesia is a banana tree producing country which in every harvest produces abundant waste of banana stems. In this study, an investigation will be made of artificial wood from banana stems. The purpose of this investigation is to obtain the flexural strength of artificial wood produced from banana tree trunks. Banana stems will be treated first in 1M NaOH solution. Making artificial wood using special printing tools and adhesives of acetate type. Flexural testing uses the ASTM D790 test standard. The results obtained that the average flexural strength of artificial wood is 3.14 MPa. This value is still much smaller when compared to the flexural strength of commercial wood, which is 87.21. However, artificial wood has the ability to absorb the load provided is better than commercial wood.
Analisis Kekuatan Tekan Beton Kolom Silinder Diperkuat Komposit Hibrid Laminat Jute E-Glass Epoksi Aji Tyas Muzakir; Achmad Jusuf Zulfikar; M Yusuf Rahmansyah Siahaan
JOURNAL OF CIVIL ENGINEERING BUILDING AND TRANSPORTATION Vol 6, No 1 (2022): JCEBT MARET
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jcebt.v6i1.6177

Abstract

Tujuan penelitian ini ialah analisis perubahan massa dan ukuran diameter rata-rata spesimen beton kolom silinder (BKS) yang dilapisi oleh komposit hibrid laminat jute glass (KHLJG), analisis jenis bahan yang dihasilkan berdasarkan grafik hasil uji tekan dan pola kerusakan specimen BKS yang dilapisi oleh selubung KHLJG, dan analisis kekuatan tekan struktur BKS yang diperkuat oleh KHLJG. Metode pembuatan specimen yang dipergunakan dalam penelitian ini ialah metode vacuum baging. Hasil dari penelitian ini ialah pemberian selubung KHLJG menyebabkan peningkatan massa dan diameter spesimen BKS. Kenaikan tersebut adalah 15 dan 16 % untuk massa dan diameter secara berturut-turut. Akan tetapi, perubahan tersebut tidak terlalu signifikan dibandingkan dengan massa dan ukuran diameter awal spesimen BKS. Berdasarkan grafik yang dihasilkan tidak memperlihatkan adanya batas titik proporsional, luluh dan bahkan titik kepatahan/kerusakan yang jelas. Dengan demikian bahan yang dihasilkan digolongkan sebagai bahan getas. Kekuatan tekan maksimum rata-rata diperoleh pada selubung KHLJG dengan variasi jute-glass-jute (JGJ), yaitu 31 MPa atau mengalami peningkatan kekuatan tekan rata-rata hingga 120 % dibandingkan dengan spesimen tanpa selubung KHLJG. Dengan demikian, pemberian selubung KHLJG pada spesimen BKS mampu meningkatkan kekuatan tekannya secara signifikan.
Analisis Kekuatan Tekan Struktur Beton Kolom Silinder Diperkuat Komposit Laminat Hibrid Jute E-glass Epoksi Eksperimental dan ANOVA Nurul Hidayat; Achmad Jusuf Zulfikar; M Yusuf Rahmansyah Siahaan
JOURNAL OF CIVIL ENGINEERING BUILDING AND TRANSPORTATION Vol 6, No 1 (2022): JCEBT MARET
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jcebt.v6i1.6182

Abstract

Tujuan dari penyelidikan ini ialah analisis kekuatan tekan struktur beton kolom silinder (BKS) diperkuat oleh mateial komposit hibrid laminate jute e-glass epoksi (KHLJG) secara eksperimental dan analisis signifikansi kekuatan tersebut pada BKS dengan menggunakan metode Anova. Dalam studi ini, pencetakan spesimen BKS berdasarkan standar uji ASTM C39. Pelapisan BKS dengan selubung KHLJG menggunakan metode vacuum bagging. Analisis data hasil uji menggunakan metode Analysis of Variance (Anova). Hasil studi ini ialah diperoleh kekuatan tekan maksimum rata-rata BKS dengan selubung KHLJG pada variasi JGJ, yaitu 31,13 MPa atau mengalami peningkatan hingga 100 % tehadap spesimen BKS tanpa selubung. Hasil analisis fungsi kerapatan variasi seluruh data uji menunjukkan bahwa data-data hasil eksperimental tersebut adalah terdistribusi secara normal pada interval sample. Berdasarkan hasil analisis Anova diperoleh nilai F0 hasil eksperimental adalah 0,998 atau jauh lebih kecil jika dibanding dengan nilai F-Distribusi dengan toleransi a = 5 %. Dengan demikian, pemberian selubung KHLJG pada spesimen BKS terbukti secara signifikan mempengaruhi peningkatan kekuatannya.
Optimasi Kekuatan Tekan Beton Kolom Silinder Diperkuat Selubung Komposit Laminat Jute Dengan Metode Anova Diko Alamsyah; Achmad Jusuf Zulfikar; M Yusuf Rahmansyah Siahaan
JOURNAL OF CIVIL ENGINEERING BUILDING AND TRANSPORTATION Vol 6, No 1 (2022): JCEBT MARET
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jcebt.v6i1.6165

Abstract

Tujuan penyelidikan ini ialah analisis kekuatan tekan spesimen beton silinder yang diperkuat dengan selubung komposit laminat jute (KLJ), analisis distribusi data yang dihasilkan dari eksperimental yang telah dilakukan dengan menggunakan metode fungsi kerapatan variasi data dan analisis optimasi kekuatan komposit laminat jute epoksi sebagai penguat struktur beton akibat beban statik tekan.  Metode yang digunakan ialah metode Analysis of Variance (Anova). Hasil penelitian ini ialah kekuatan tekan maksimum rata-rata diperoleh pada jumlah selubung KLJ sebanyak 3 lapis, yaitu 23.84 MPa atau mengalami peningkatan kekuatan tekan rata-rata hingga 40 % tehadap spesimen tanpa selubung. Hasil analisis terhadap fungsi kerapatan variasi terhadap seluruh data uji menunjukkan bahwa data-data hasil eksperimental tersebut adalah terdistribusi secara normal pada interval populasi rata-rata ± standar deviasi. Berdasarkan hasil analisis Anova memperlihatkan bahwa nilai F0 hasil eksperimental yaitu 0,93 adalah jauh lebih kecil jika dibanding dengan nilai F-Distribusi dengan toleransi a = 5 %, DoF treatment = 2, dan DoF error = 6, yaitu 5,14. Dengan demikian, pemberian selubung KLJ pada spesimen beton silinder terbukti secara signifikan mempengaruhi peningkatan kekuatannya.
Analisis Signifikansi Roda Skateboard Berbahan Komposit Serbuk Batang Pisang Terhadap Perfoma Kecepatan Dengan Metode Anova Achmad Jusuf Zulfikar; Muhammad Yusuf R. Siahaan; Ruli Bay Syahputra
Rekayasa Material, Manufaktur dan Energi Vol 4, No 2: September 2021
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v4i2.8068

Abstract

In general, skateboard wheels are made from a mixture of polyurethane (PU) so that they are elastic, lightweight, and strong. However, this material is classified as a toxic material, difficult to obtain, and the price is relatively expensive. Therefore, alternative raw materials that are more environmentally friendly, non-toxic, easy to find, and have sufficient availability are needed. Banana trees are the most abundant and easily found plants in Indonesia, especially Medan. This tree has a soft structure and absorbs vibrations. Thus, the research was conducted to obtain the characteristics of skateboard wheel products from banana stem powder (SBP) composite material as an alternative raw material. The purpose of this study was to analyze the speed of skateboards made of PU (commercial) and SBP in order to obtain the optimum composition of SBP for the manufacture of skateboard wheels. The test uses a sliding platform with a slope of 30o against a flat plane. The number of variations consists of the composition of SBP 5%, 10%, and 15%. As a control, commercial PU wheels were also tested. Analysis of data using the analysis method of mean variation (ANOVA) with the condition of acceptance of the hypothesis H0 at a 0.05. The results obtained are that there is an increase in the speed of skateboards made of SBP composite up to 6, 85% compared to commercial wheels. Based on the Anova test results, it was found that the application of SBP composite materials as raw material for skateboard wheels was proven to significantly increase the speed performance of these wheels.
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.
Analisis Metode Split Tensile Test Komposit Laminat Jute Terhadap Kekuatan Tarik Belah Beton Kolom Silinder Hidayat, Nurul; 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.v1i2.14

Abstract

Composite materials have experienced quite rapid development as new alternative materials to replace metal materials. The concrete structure is the main structure of a building and will experience a decrease in its mechanical strength over time. In this study, laminated composite materials from woven jute fabrics will be used as reinforcement for concrete structures. The purpose of this study was to obtain the tensile strength of cylindrical column concrete (BKS) reinforced by laminated jute composite (KLJ) using the split tensile test method, to analyze the validity of the test results using the normally distributed data method (DTN), and to analyze the tensile strength of BKS reinforced KLJ based on test results of the split tensile test method. The split tensile test uses the ASTM C496 standard with a variety of layers from 1 layer to 4 layers of KLJ. Each variation was tested 3 times. KLJ casing printing on BKS uses the Vacuum Bagging method. As a comparison, 3 specimens without KLJ casing were prepared as control specimens. The results of the investigation showed that the application of the KLJ sheath to the BKS resulted in an increase in the split tensile strength of the BKS at 1, 2, 3, and 4 KLJ sheaths by 62%, 166%, 200%, and 330% respectively. Thus, the provision of a KLJ sheath has the potential to strengthen the BKS structure.
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