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All Journal Civil Engineering and Technology Journal Majalah Teknik Mesin
Andi Ibrahim Soumi
Universitas Sarjanawiyata Tamansiswa
Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Transportation

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STUDI NUMERIK PENGARUH LEBAR SPESIMEN TERHADAP SIFAT TARIK AISI 1010 MENGACU PADA ASTM E8 Iskandar Yasin; Andi Ibrahim Soumi
CivETech: Civil Engineering and Technology Journal Vol. 7 No. 2 (2025): CivETech
Publisher : Fakultas Teknik Universitas Cokroaminoto Yogyakarta

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Abstract

Penelitian ini bertujuan untuk mengevaluasi pengaruh variasi lebar spesimen terhadap sifat mekanik tarik baja karbon rendah AISI 1010 melalui pendekatan simulasi numerik berbasis metode elemen hingga (Finite Element Analysis/FEA) menggunakan perangkat lunak Ansys Workbench. Spesimen uji tarik dimodelkan dalam bentuk dog-bone sesuai standar ASTM E8 dengan dua variasi lebar daerah ukur, yaitu 6 mm (sub-size specimen) dan 12.5 mm (standard specimen). Parameter material dimasukkan berdasarkan data sifat mekanik AISI 1010, sedangkan pembebanan diberikan dalam bentuk kendali perpindahan aksial pada ujung penjepit. Hasil simulasi menunjukkan bahwa spesimen dengan lebar 12.5 mm memiliki tegangan maksimum dan deformasi plastis yang lebih tinggi serta distribusi regangan yang lebih homogen dibandingkan spesimen 6 mm. Sebaliknya, spesimen berlebar 6 mm cenderung mengalami konsentrasi regangan pada daerah transisi fillet–gage sehingga kekuatan tarik yang diperoleh lebih rendah. Temuan ini menegaskan bahwa pemilihan lebar spesimen sesuai standar ASTM E8 berperan penting dalam memperoleh hasil uji tarik yang representatif dan akurat. Penelitian ini memberikan kontribusi dalam memperkuat pemahaman mengenai pengaruh geometri spesimen terhadap karakterisasi sifat mekanik material serta menjadi rujukan bagi penelitian dan pengujian lanjutan yang menggunakan pendekatan simulasi numerik.
NUMERICAL INVESTIGATION OF THICKNESS AND MATERIAL EFFECTS ON THE MECHANICAL BEHAVIOR OF MILD STEEL DAMPERS USING FINITE ELEMENT ANALYSIS Iskandar Yasin; Widarto Sutrisno; Nurul Hasan; Andi Ibrahim Soumi
Media Mesin: Majalah Teknik Mesin Vol. 27 No. 1 (2026)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v27i1.16741

Abstract

Mild steel dampers are widely utilized as energy dissipation devices due to their ductility and stable mechanical behavior. This study presents a numerical investigation of the effects of plate thickness and material variation on the mechanical performance of an H-type mild steel damper using nonlinear finite element analysis. The model is developed in ANSYS with three-dimensional solid elements, incorporating material and geometric nonlinearity to capture structural response under loading. Two parametric studies are conducted, including plate thickness variations (15 mm, 20 mm, 25 mm, and 30 mm) and material variations (structural steel, grey cast iron, and aluminum alloy). The mechanical behavior is evaluated based on deformation, equivalent stress, and strain distribution along the damper height. The results show that increasing plate thickness significantly reduces deformation and strain while improving stress distribution, indicating enhanced structural stiffness. However, excessive thickness may limit deformation capacity. In terms of material performance, structural steel exhibits the most stable behavior with low deformation and controlled stress and strain distribution. Aluminum shows higher deformation and strain due to its lower stiffness, while grey cast iron demonstrates limited ductility and higher stress concentration. An optimal configuration is identified at a thickness of 20-25 mm using structural steel, providing a balance between stiffness and deformation capability. These findings contribute to the design optimization of metallic dampers for structural applications.
Co-Authors Iskandar Yasin Nurul Hasan Widarto Sutrisno