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PERSEPSI MASYARAKAT TERHADAP PEMBANGUNAN JALAN TOL RUAS PADANG - SICINCIN Dony Hidayat; Surtani Surtani
JURNAL BUANA Vol 6 No 1 (2022)
Publisher : DEPARTEMEN GEOGRAFI FIS UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/buana.v6i1.2000

Abstract

Penelitian ini bertujuan untuk (1) Mengetahui kondisi sosial ekonomi masyarakat disekitar pembangunan jalan tol. (2) Untuk mengetahui bagaimana persepsi masyarakat terhadap pembangunan jalan tol. Jenis penelitian yang digunakan dalam penelitian ini yaitu deskriptif kualitatif. Teknik pengumpilan data dalam penelitian ini yaitu dengan menggunakan cara observasi, wawancara dan dokumentasi. Informan yang terlibat dalam penelitian ini yaitu Ninik mamak, Wali Nagari Kasang, Kepala Korong Chaniago, Bintungan dan masyarakat Nagari Kasang. Hasil penelitian ini dapat diketahui bahwa (1) Kondisi sosial ekonomi masyarakat disekitar pembangunan jalan tol relatif homogen dari segi mata pencaharian dengan mayoritas sebagai petani sedangkan tingkat pendidikan formal tergolong rendah. Sementara itu rata-rata pendapatan masyarakat berkisar antara Rp. 500.000,00 – Rp. 4.000.000,00/bulan. (2) Masyarakat memiliki persepsi positif dan negatif terhadap pembangunan jalan tol ruas Padang - Sicincin.
Crashworthiness Performance Study of 3D-Printed Multi-Cell Tubes Hybridized with Aluminum Under Axial Quasi-Static Testing Ardiansyah, Riki; Indriani, Fitri Karina; Hidayat, Dony; Tjahjono, Arif; Nurrohmad, Abian; Marta, Aryandi
Automotive Experiences Vol 7 No 3 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.12247

Abstract

This study investigates the crashworthiness performance of 3D-printed hybrid tubes, fabricated using PLA and PACF filaments with varying shell thicknesses (1, 1.5, and 2 mm). The hybrid tubes, composed of a shell, aluminum, and multi-cell structure, were subjected to axial quasi-static testing. Results indicate that both shell thickness and filament type significantly influence crashworthiness. PLA specimens with a shell thickness of 2 mm absorbed 504 J of energy, whereas PACF specimens with the same thickness absorbed only 342.9 J. The deformation mode analysis revealed mixed deformation patterns, including diamond, fracture, and fragmented modes. The study also evaluated specific energy absorption (SEA) and crushing force efficiency (CFE). The PLA specimen with a 2 mm shell thickness exhibited the highest SEA value of 18.61 J/g among all specimens. In contrast, the PACF specimen with the same shell thickness demonstrated the highest CFE value of 0.82 among the tested specimens. Overall, this research contributes insights into the design optimization of 3D-printed hybrid tubes for enhanced crashworthiness.