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All Journal JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Suara Teknik : Jurnal Ilmiah
M. Yusuf Rahmansyah Siahaan
Universitas Medan Area
Agriculture, Biological Sciences & Forestry Control & Systems Engineering Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Pembuatan Alat Uji Tarik Universal Statis Dengan Penggerak Servomotor Berkapasitas Maksimum 1 kN Feberius Gea; Rakhmad Arief Siregar; M. Yusuf Rahmansyah Siahaan
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 6 No. 2 (2022): Edisi Desember 2022
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v6i2.6173

Abstract

Tensile test is one of several tests that are commonly used to determine the mechanical properties of a material. The purpose of this research is to build and assemble products according to customer needs and to be able to analyze the process of making a static universal tensile tester with a servomotor drive with a capacity of 1 kN. It is hoped that this research can facilitate the selection of raw materials in providing information about the materials to be used and used. This tensile test equipment with a capacity of 1 kN uses a servomotor as the main driver. This type has begun to be used in the world because it is simpler than other motors, so this tool can compete with tensile test equipment sold in the market. This tool is equipped with supporting components such as a load cell, encoder and control panel using a data cable so that it gets graphic results when testing using visual studio software.
Analisis Karakteristik Mekanik pada Komposit Kertas Kardus yang Diperkuat dengan Serat Batang Pisang Yusrizha Syahid; Rakhmad Arief Siregar; M. Yusuf Rahmansyah Siahaan
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol. 6 No. 1 (2021): Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian, Desember
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v6i1.6172

Abstract

The development of composite technology in the industrial world has progressed very rapidly until now. The most important element of composite materials is fiber, which gives the material characteristics such as strength, ductility and other mechanical properties. So far, cardboard and banana trees are only known as waste which is very easy to find in the housing environment. Therefore, research on composites was carried out by utilizing used cardboard and banana trees. The used cardboard then crushed and then mashed into a pulp them combined/mixed using kepok banana tree fiber and mas banana tress fiber which aims to determine the mechanical characteristics of the cardboard paper composite reinforced with materials. As the main adhesive while using PVac glue. The specimen mixture has variations of 30:70, 50:50 and 70:30 with each having 3 variabel in each composition, and the mixture of pulp with mixed kepok and mas fibers has a variation of 50:50 with 3 variabels, all using ASTM standart guidelines, 3039 M. The results of the tensile test of the highest fracture strain value was a mixture of pulp with banana kepok fiber at a composition of 30:70 of 0,0457 MPa, the highest value of yield strength was a mixture of pulp with mixed fiber composition of 50:50 of 1,125 MPa, The highest value of modulus of elasticity is the mixture of pulp and fiber mix 50:50 composition of 1,281 MPa.
Numerical Analysis of Angular Dissimilarity of Static Loads in Honeycomb Structures Substantial Flexural Strength M. Yusuf Rahmansyah Siahaan; Rakhmad Arief Siregar; Amru Siregar; Ahmad Yunus Nasution
Suara Teknik : Jurnal Ilmiah Vol 14, No 2 (2023): Suara Teknik: Jurnal Ilmiah
Publisher : Fakultas Teknik UM Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29406/stek.v14i2.6337

Abstract

Three-dimensional (3D) imaging technology for computer-assisted construction planning of a product through a simulation process is now having a very positive impact in helping to improve the construction results of a product. The honeycomb shape has better strength in accepting constant and stable loads and has a lighter structure. Aluminum honeycomb using the sandwich construction method was analyzed by simulation using Ansys software in this research based on 3 variations in hexagonal cell geometry due to differences in the applied static load. The influence of the hexagonal honeycomb cell geometry shows a contribution to the deformation capability of the material at varying load angles, namely an increase of 100% at a load angle of 60° and a higher spike of around 130% for a load angle of 90°. Variations in the hexagonal honeycomb geometry still have an impact on increasing material capability. of 128% in the 6 mm hexagonal cell model with a load angle of 90°. The geometric intensity of the honeycomb hexagonal cell produces expansion values respectively in material deformation and equivalent stress based on the load angle of 15% and 35%.
Co-Authors Ahmad Yunus Nasution Amru Siregar Feberius Gea Rakhmad Arief Siregar Rakhmad Arief Siregar Yusrizha Syahid