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All Journal JMM (Jurnal Masyarakat Mandiri) International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Mechanical Engineering for Society and Industry
Ariadi, Yudhi
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation Other

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CRASH BOX DESIGN WITH METAL FOAM FILLING MADE VIA MELT ROUTE AND CALCIUM CARBONATE BLOWING AGENT Hartanto, David Satya; Choiron, M. Agus; Purnowidodo, Anindito; Ariadi, Yudhi
International Journal of Mechanical Engineering Technologies and Applications Vol. 6 No. 2 (2025)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2025.006.02.9

Abstract

The crashworthiness of daily passenger vehicles has been continuously developed to improve the safety of a passenger on collision. This study presents a simulation on thin-walled foam filled crash-box based on finite element methods to improve the current crash box design while also maintaining the usage of simple geometry in form of rectangular tube. This crash box is modeled as foam filled thin-walled structure that is intended to be mounted on the frontal side of car chassis. This simulation was carried out using frontal impact test, with an impactor speed of 10 m/s. The foam-filling of the crash-box is created in-house by the researcher, using calcium carbonate blowing agent on melt route process. By observing the area under the curve of the relationship between the force-reaction and the displacement, the energy absorption can be calculated. The simulation also reveals the deformation patterns on the crash box. The result of the simulation shows that foam-filling on thin-walled crash box improves the deformation behavior of the crash box and subsequently improving the energy absorption figure and its crushing force efficiency.
Advanced computational techniques for predicting 3D printing distortion in selective laser melting processes of Aluminium AlSi10Mg Choiron, Moch. Agus; Purnowidodo, Anindito; Zacoeb, Achfas; Setyawan, Gembong Edhi; Wirawan, Willy Artha; Ariadi, Yudhi; Rennie, Allan E.W.; Kurnianingtyas, Diva
Mechanical Engineering for Society and Industry Vol 5 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.12581

Abstract

Distortion for 3D printing using Selective Laser Melting (SLM) on AlSi10Mg aluminium is an important issue that affects the final manufactured product. This research aims to develop a finite element method (FEM)-based computational simulation and experimental validation to predict distortion in 3D printed products using SLM. The study results found that the variation of 3D printing position affects the resulting product's distortion and mechanical properties. The 90° part print position results in smaller distortion of 0.303 and 0.335 mm than the 0° part print position of 0.329 and 0.378, respectively, making it more suitable for high-precision applications. This study confirms the importance of scan orientation in controlling distortion in the SLM process, which can be used as a guide for optimal printing parameters. With proper orientation selection, the risk of distortion or defects in SLM products can be minimised, and industrial production efficiency can be improved.
MANAJEMEN PENGELOLAAN HIJAUAN PAKAN TERNAK BERKELANJUTAN UNTUK MENDUKUNG KETAHANAN PANGAN Mastuti, Rini; Fuad, Muhammad; Putri, Desyana; Safrizal, Safrizal; Ariadi, Yudhi
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 4 (2025): Agustus
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i4.32550

Abstract

Abstrak: Ketersediaan hijauan pakan ternak berkelanjutan menjadi tantangan dalam menjaga produktivitas peternakan rakyat di Aceh Tamiang. Program pengabdian ini bertujuan meningkatkan kapasitas Kelompok Tani Tunas Muda dalam manajemen hijauan melalui pelatihan teknis, pendampingan, dan penerapan teknologi tepat guna. Metode yang digunakan adalah Participatory Rural Appraisal (PRA) dengan pendekatan kolaboratif dosen, mahasiswa, dan mitra. Kegiatan meliputi sosialisasi, FGD, pelatihan pemilihan rumput unggul, budidaya hijauan, dan penggunaan mesin chopper. Hasil menunjukkan peningkatan pengetahuan mitra sebesar 30% dan produksi hijauan cacahan 30 kg/hari. Program ini menghasilkan luaran seperti publikasi, video, poster, dan pengajuan HKI, serta mendukung pencapaian IKU dan pemberdayaan peternak. Kegiatan ini berpotensi direplikasi di daerah lain dengan kondisi serupa untuk mendukung ketahanan pangan lokal.Abstract: The availability of sustainable forage is a challenge in maintaining the productivity of smallholder farms in Aceh Tamiang. This service program aims to increase the capacity of Tunas Muda Farmers Group in forage management through technical training, mentoring, and application of appropriate technology. The method used is Participatory Rural Appraisal (PRA) with a collaborative approach of lecturers, students, and partners. Activities include socialization, FGDs, training on superior grass selection, forage cultivation, and the use of chopper machines. The results showed an increase in partner knowledge by 30% and chopped forage production of 30 kg/day. This program produces outputs such as publications, videos, posters, and IPR submissions, and supports the achievement of KPIs and empowerment of farmers. This activity has the potential to be replicated in other areas with similar conditions to support local food security.
Co-Authors Achfas Zacoeb Anindito Purnowidodo Choiron, M. Agus Gembong Edhi Setyawan Hartanto, David Satya Kurnianingtyas, Diva Moch. Agus Choiron Muhammad Fuad Putri, Desyana Rennie, Allan E.W. Rini Mastuti Safrizal Safrizal Wirawan, Willy Artha