Claim Missing Document
Check
Articles

Found 3 Documents
Search
Journal : Dinamis

ANALISIS NUMERIK ANALISIS NUMERIK TERHADAP SAMBUNGAN PROTOTIPE PENGGANTI TULANG PANGGUL PATAH PADA MANUSIA MENGGUNAKAN PERANGKAT LUNAK SOLIDWORKS: TERHADAP SAMBUNGAN PROTOTIPE PENGGANTI TULANG PANGGUL PATAH PADA MANUSIA MENGGUNAKAN PERANGKAT LUNAK SOLIDWORKS Yusuf Siahaan, Muhammad Yusuf Rahmansyah Siahaan; Siregar, Rakhmad Arief
DINAMIS Vol. 10 No. 1 (2022): Dinamis
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dinamis.v10i1.8974

Abstract

Implan panggul membutuhkan bentuk geometris yang kompleks untuk merekonstruksi area cacat tulang yang tidak biasa, serta kekuatan mekanik yang tinggi untuk menahan beban tekan yang tinggi. Desain fiksasi penting pada implan panggul, mengingat bahwa fiksasi mengamankan implan panggul ke tulang yang tersisa, sementara juga menanggung sejumlah besar beban yang ditempatkan pada tulang. dalam penelitian ini, klasifikasi model sambungan dirancang untuk meningkatkan stabilitas mekanis implan panggul dan menganalisis sambungan protptipe panggul menggunakan simulasi solidworks. Dengan mengklasifikasikan suatu model sambungan. simulasi yang dilakukan dan distribusi tegangan antara daerah tegangan yang tinggi diamati daerah sambungan pada tulang panggul bagian pubis.
Investigation of Static Flexural Strength of Aluminium Honeycomb Panels with Varying Cell Sizes Siregar, Rakhmad Arief; Yusuf Siahaan, Muhammad Yusuf Rahmansyah Siahaan
DINAMIS Vol. 12 No. 1 (2024): Dinamis
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dinamis.v12i1.16418

Abstract

In this paper, the static flexural strength of aluminium honeycombs with varying cell sizes were tested experimentally using three-point bending method. Three different cell sizes, namely 2 mm, 4 mm and 6 mm, which were produced in a local workshop in the city of Medan, were used for this study. The main focus is to observe the maximum load and permanent deflection under static loads. The results show that the fracture mode that occurs after reaching the maximum load is core fracture followed by rupture of the adhesive between the core and the skin sheet. It is found that cell size has a significant influence on the maximum flexural strength of honeycomb panels which can be approximated by a regression curve with the results a1 = 0.3475 and a0 = 1.51.
Investigation of the Impact Strength of MC Blue Material Due to Temperature Variations Yusuf Rahmansyah Siahaan, Muhammad; Rakhmad Arief Siregar; Faisal Amri Tanjung; Ahmad Yunus Nasution
DINAMIS Vol. 12 No. 2 (2024): Dinamis
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dinamis.v12i2.18851

Abstract

Researchers carried out experimental testing on the MC Blue material using the charphy impact method. The MC Blue specimen was developed in a local workshop in Medan City, North Sumatra for three variations of testing temperature, namely normal temperature 31 oC, temperature 50 oC, and temperature 100 oC. The aim of this research is to determine the impact energy and impact strength values ​​of MC Blue material due to dynamic loads. The results of test data analysis show the mechanical characteristics of impact resistance with the highest value occurring in specimens at a temperature of 100 oC of 56.696 Joules at an average impact energy and an average impact strength value of 0.438 J/mm2. Meanwhile, the lowest Charphy impact resistance was shown by the normal temperature model of 31 oC of 17.975 Joules for the average impact energy value and the average impact strength value was 0.139 J/mm2. Temperature variations have a concrete impact, there is an increase in impact energy on the MC Blue material with a linear gradient equation y = 19.361x + 2.1467 and the impact strength value experiences a relevant increase due to temperature differences with a linear gradient equation y = 0.1495x + 0.0163.