Article Per Year (5 Year)
p-Index From 2020 - 2025
1.606
P-Index
This Author published in this journals
All Journal Portal: Jurnal Teknik Sipil Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Jurnal Penelitian Enjiniring Fakultas Teknik Unhas Sabangka Abdimas Jurnal Pengabdian Masyarakat Sabangka Journal of Community Empowerment PHENOMENON : MULTIDISCIPLINARY JOURNAL OF SCIENCES AND RESEARCH Jurnal Bangunan Konstruksi
Darwis, Mardis
Unknown Affiliation
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences Transportation Other

Published : 10 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 10 Documents
Search

 1 
Analisis Pola Kegagalan Balok Sistem Rangka dengan Perkuatan di Daerah Tumpuan Darwis, Mardis; Djamaluddin, Rudy; Irmawaty, Rita; Amir, Astiah
Jurnal Penelitian Enjiniring Vol 24 No 1 (2020)
Publisher : Center of Techonolgy (COT), Fakultas Teknik, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jpe.052020.03

Abstract

The previous research of using truss system reinforcement in the beam without concrete (BTR) in the tension zone causes a decrease in flexural capacity due to the failure in the area near the support. Therefore, it is necessary to add tensile reinforcement in the support zone. This study aims to analyze the ultimate capacity of the truss system concrete beam strengthened with tensile reinforcement and to analyze the effect of tensile reinforcement in support zone due to crack pattern. This study was conducted experimentally in the laboratory. The dimension of truss reinforced concrete specimens are 15 cm x 20 cm x 330 cm that added tensile reinforcement with three types of length, they are BTRP 40D, BTRP 50D, and BTRP 60D, where D (13 mm) is diameter of tensile reinforcement. The flexural test is carried out by monotonic static loading. The results showed that tensile reinforcement in BTRP 40D was not able to carry the ultimate capacity due to premature failure in the support zone. while BTRP 50D and BTRP 60D specimens can enhance the ultimate capacity without facing premature failure in the support zone. The tensile reinforcement of 60D has the highest ultimate capacity because it can carry the biggest loads and minimum crack pattern.
PENGENALAN PENDIDIKAN TINGGI VOKASI DAN SOSIALISASI SELEKSI PENERIMAAN MAHASISWA BARU POLITEKNIK TRIDAYA VIRTU MOROSI TAHUN 2024 BERLOKASI DI SMA/SMK DI KABUPATEN KONAWE PROVINSI SULAWESI TENGGARA Badia, Bahdin Ahad; Darwis, Mardis; Putra, Fachrizal Cesar; Jalil, Abdul
Jurnal Pengabdian Masyarakat Sabangka Vol 3 No 02 (2024): Jurnal Pengabdian Masyarakat Sabangka
Publisher : Pusat Studi Ekonomi, Publikasi Ilmiah dan Pengembangan SDM Azramedia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62668/sabangka.v3i02.991

Abstract

This activity aimed to introduce vocational higher education and socialize the selection of new student admissions at the Tridaya Virtu Morosi Polytechnic in 2024 to high school and vocational school students in Konawe Regency, Southeast Sulawesi. The methods used were presentations, discussions, and question and answer sessions involving resource persons from the Tridaya Virtu Morosi Polytechnic and representatives from local high schools and vocational schools. The results showed an increase in prospective students' understanding of vocational education and study opportunities at the Tridaya Virtu Morosi Polytechnic. Students' interest and enthusiasm to continue their education at the vocational level and enroll at the Tridaya Virtu Morosi Polytechnic increased after participating in this activity. This activity also helped promote the study programs offered and attract potential new students from high schools and vocational schools in Konawe Regency.
ANALISIS PENGARUH KOMPOSISI PEREKAT TERHADAP KARAKTERISTIK TERMAL BRIKET ARANG PELEPAH SAGU SEBAGAI BAHAN BAKAR ALTERNATIF Badia, Bahdin Ahad; Sudia, Budiman; Mangalla, Lukas Kano; Gunawan, Yuspian; Aksar, Prinob; Samhuddin, Samhuddin; Putra, Muhammad Idris; Larobu, Feliks Eldad; Darwin, Darwin; Efendi, Rustam; Defi, Sry; Gamsir, La Ode Abdul; Darwis, Mardis
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 10, No 1 (2024): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v10i1.9208

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh komposisi perekat terhadap karakteristik termal briket arang pelepah sagu. Tiga komposisi yang diuji adalah briket dengan perbandingan presentase arang pelepah sagu:perekat tepung kanji masing-masing 90:10%, 80:20%, dan 70:30%. Pembuatan briket dilakukan pada tekanan konstan 70 kgf/cm2. Pengujian termal dilakukan menggunakan tungku pembakaran silindris yang dirancang untuk aliran udara secara alami. Setiap komposisi diuji dengan tiga briket. Selama pembakaran, penurunan massa dan peningkatan suhu ruang bakar diamati setiap interval waktu 4 menit menggunakan timbangan digital dan termokopel tipe K. Hasil penelitian menunjukkan bahwa komposisi dengan perbandingan 90% arang pelepah sagu dan 10% perekat tepung kanji menunjukkan kenaikan suhu pembakaran tertinggi. Hasil ini menunjukkan bahwa proporsi perekat tepung kanji yang lebih rendah dalam briket dapat meningkatkan efisiensi pembakaran
Studi Perbandingan Tipe Lubang Baut pada Sambungan Baja dengan Metode Bearing Type Connection dan Slip Critical Connection Darwis, Mardis; Badia, Bahdin Ahad; Rahman, La; Rambak, Ezra Pasereng; Ibrahim, Fadel Khalifah
Portal: Jurnal Teknik Sipil Vol 16, No 2 (2024): April Edition
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v16i2.5216

Abstract

Penelitian ini bertujuan untuk menganalisis kekuatan sambungan dengan menggunakan 4 tipe lubang yang berbeda. Adapun 4 tipe lubang sambungan (bolt holes) diantara lain Standard Hole (STD) , Short-Slotted Hole(SSL), Oversized Hole(OVS), dan Long-Slotted Hole (LSL). Analisis perhitungan sambungan menggunakan metode Load and Resistance Factor Design (LRFD) .Desain tiap sambungan menggunakan jumlah baut yang sama dengan tata letak baut seragam. Adapun baut yang digunakan berdasarkan standar SNI 1729:2015.  Dari hasil analisis kuat sambungan tipe lubang standar (Standar Hole) menunjukan tahanan terkecil kekuatan block geser sebesar 731.71 kN. Lubang oversized nilai tahanan friksi sebesar 104.89 kN, Lubang short-slotted hole sejajar arah gaya sebesar 104.89 kN , kemudian yang tegak lurus arah gaya memiliki tahanan friksi sebesar 123.4 kN. Lubang slot panjang memiliki 2 tahanan friksi yaitu yang sejajar arah gaya sebesar 74.04 kN dan tegak lurus sebesar 86.38 kN.
SOSIALISASI DAN PROMOSI (SOSPRO) SELEKSI PENERIMAAN MAHASISWA BARU TAHUN 2024 PADA SMK NEGERI 2 KENDARI Badia, Bahdin Ahad; Darwis, Mardis; Defi, Sry; Larobu, Feliks Eldad; Aji, Angga Asteriasti
Journal of Community Empowerment Vol 3, No 1 (2024): Juni
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRAK                                                                            Sosialisasi dan promosi penerimaan mahasiswa baru merupakan langkah penting dalam menarik minat calon mahasiswa. Kegiatan ini bertujuan untuk memperkenalkan Seleksi Penerimaan Mahasiswa Baru Politeknik Tridaya Virtu Morosi tahun 2024 kepada siswa dan siswi Sekolah Menengah Kejuruan Negeri 2 Kendari, Kota Kendari, Provinsi Sulawesi Tenggara. Metode yang digunakan meliputi presentasi, wawancara, distribusi brosur, dan diskusi interaktif dengan siswa dan guru di sekolah-sekolah terkait. Kegiatan ini bertujuan untuk memberikan informasi lengkap mengenai proses seleksi, program studi yang ditawarkan, persyaratan pendaftaran, dan prospek karir lulusan Politeknik Tridaya Virtu Morosi. Mitra sasaran dari kegiatan ini adalah siswa kelas 12 yang akan segera lulus dan guru-guru yang terlibat dalam proses bimbingan karir di SMK Negeri 2 Kendari, dengan jumlah peserta mencapai 150 siswa dan 10 guru. Hasil kegiatan menunjukkan bahwa informasi mengenai seleksi penerimaan dan program studi dapat disampaikan dengan baik. Respon positif dari pihak sekolah dan siswa terlihat dari antusiasme yang tinggi dan banyaknya pertanyaan yang diajukan. Kegiatan sosialisasi ini diharapkan dapat meningkatkan jumlah pendaftar dan membantu siswa dalam memilih perguruan tinggi yang sesuai dengan minat dan bakat mereka.Kata kunci: sosialisasi dan promosi, penerimaan  mahasiswa baru, SMK, efektivitas program, pendidikan tinggi ABSTRACTThe purpose of this activity is to conduct outreach and promotion related to the 2024 New Student Admission Selection for Politeknik Tridaya Virtu Morosi to students of Sekolah Menengah Kejuruan Negeri 2 Kendari, Kota Kendari, Sulawesi Tenggara Province. The implementation methods used include presentations, interviews, brochure distribution, and interactive discussions with students and teachers at the related schools. The results achieved are the successful dissemination of information regarding the New Student Admission Selection, the study programs offered, registration requirements, and career prospects for graduates of Politeknik Tridaya Virtu Morosi to prospective new students. This outreach activity received positive responses from the schools and students, as evidenced by the enthusiasm and numerous questions raised. The target partners for this activity are 150 twelfth-grade students who will soon graduate and 10 teachers involved in career guidance at SMK Negeri 2 Kendari. The results indicate that the information on the admission selection and study programs was well conveyed. The positive response from the schools and students is demonstrated by the high enthusiasm and many questions asked. This outreach activity is expected to increase the number of applicants and help students choose the right higher education institution according to their interests and talents.Keywords:  socialization and promotion, new student admission, vocational high school, program effectiveness, higher education
RESTORATION AND RECONSTRUCTION OF BUILDING AND STRUCTURES IN KRASNODAR, RUSSIAN FEDERATION: A DEEP DIVE INTO MODERNIZATION AND URBAN RENEWAL Simanjuntak, Raja Agung Hasudungan; Darwis, Mardis; Rambak, Ezra Pasereng; Rahman, La; Wardani, Ayu; Aji, Angga Asteriasti
PHENOMENON : Multidisciplinary Journal Of Sciences and Research Vol 3 No 01 (2025): PHENOMENON : Multidisciplinary Journal Of Sciences And Research
Publisher : Pusat Studi Ekonomi Publikasi Ilmiah dan Pengembangan SDM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62668/phenomenon.v3i1.1405

Abstract

This article explores the complex landscape of building reconstruction in Krasnodar, Russia, a city experiencing rapid urban development [3][6]. It examines the drivers behind reconstruction projects, focusing on the need to address both objective and subjective obsolescence in civil and industrial buildings. The machine-building complex of the Krasnodar region includes enterprises of oil and gas, railway, agricultural and food engineering. The study highlights the multifaceted goals of modern reconstruction, including enhancing living comfort, increasing residential capacity, and improving the urban environment[3]. It also delves into the challenges faced during urban reconstruction, such as managing increased loads on foundations, working within confined construction sites, and modernizing existing utilities. The article further examines the diverse repair strategies employed, emphasizing the importance of tailoring methods to specific building materials, damage extent, and site conditions. Ultimately, it underscores the need for a holistic and integrated approach to reconstruction, balancing progress and preservation to create sustainable, resilient, and aesthetically pleasing urban spaces that enhance the quality of life for Krasnodar's residents[3][4].
ANALYSIS OF THE EFFECT OF MACHINING VARIABLES ON SURFACE ROUGHNESS AND VIBRATION AMPLITUDE IN TURNING AISI 1045 STEEL USING THE TAGUCHI METHOD Aji, Angga Asteriasti; Cesar Putra, Fachrizal; Badia, Bahdin Ahad; Idris Putra, Muhammad; Sahputra, Wahyu Puji; Darwis, Mardis; Hasudungan Simanjuntak, Raja Agung
PHENOMENON : Multidisciplinary Journal Of Sciences and Research Vol 3 No 01 (2025): PHENOMENON : Multidisciplinary Journal Of Sciences And Research
Publisher : Pusat Studi Ekonomi Publikasi Ilmiah dan Pengembangan SDM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62668/phenomenon.v3i1.1406

Abstract

The development of the manufacturing industry is growing very rapidly so that the products of the manufacturing industry must have high quality, especially machining products such as turning products. This research investigates the effect of turning parameters, namely feed and spindle rotation on surface roughness and vibration amplitude of turning AISI 1045 steel using carbide tools. Surface roughness measurements were taken using an OLS4100 Microscope and vibration amplitude was measured using a Vibxpert II. From the results of the analysis conducted, the feed factor is the most significant factor on the results of surface roughness and vibration amplitude. The most optimal machining parameters for surface roughness are feed 0.1 mm/put (lvl 1), spindle speed 400 rpm (lvl4) with a surface roughness value of 4.757 µm. The most optimal machining parameters for vibration amplitude are feed 0.1 mm/put (lvl 1) and spindle speed 100 rpm (lvl 1) with a vibration amplitude value of 0.11 m/s.
PENDIDIKAN VOKASI SEBAGAI PILAR PENDIDIKAN TINGGI YANG RESPONSIF DI ERA INDUSTRI 4.0 INDONESIA EMAS 2045: MEMBANGUN KESADARAN GENERASI MUDA KONAWE Simanjuntak, Raja Agung Hasudungan; Darwis, Mardis; Wardani, Ayu; Rahman, La; Badia, Bahdin Ahad; Aji, Angga Asteriasti; Putra, Fachrizal Cesar
Jurnal Pengabdian Masyarakat Sabangka Vol 4 No 03 (2025): Jurnal Pengabdian Masyarakat Sabangka
Publisher : Pusat Studi Ekonomi, Publikasi Ilmiah dan Pengembangan SDM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62668/sabangka.v4i03.1480

Abstract

This community service activity aimed to raise awareness among youth in Konawe Regency about the importance of vocational education as a practical and industry-relevant higher education pathway in the era of Industry 4.0 towards Golden Indonesia 2045. The implementation involved identifying information needs, preparing outreach materials, coordinating with target schools, conducting on-site socialization, and evaluating outcomes through questionnaires. The results revealed improved understanding and interest in vocational education, a shift in perceptions, and increased recognition of local vocational institutions. This program also bridged the information gap and strengthened connections between schools and vocational institutions. The activity effectively encouraged youth participation in vocational education as a strategy to develop competitive human resources in Konawe.
Analisis Pengaruh Variabel Permesinan Terhadap Kekasaran Permukaan dan Amplitudo Getaran pada Pembubutan Baja AISI 1045 Menggunakan Metode Taguchi Aji, Angga Asteriasti; Putra, Fachrizal Cesar; Darwis, Mardis; Hasudungan Simanjuntak, Raja Agung
Jurnal Penelitian Enjiniring Vol 28 No 2 (2024)
Publisher : Center of Techonolgy (COT), Fakultas Teknik, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jpe.112024.01

Abstract

Perkembangan Industri manufaktur yang berkembang sangat pesat sehingga hasil Produk dari industri manufaktur harus memiliki kualitas yang tinggi, terutama produk hasil permesinan seperti produk pembubutan. Baja AISI 1045 adalah salah satu jenis baja karbon rendah dengan kandungan karbon sebesar 0,43 hingga 0,50%. Itu sering digunakan di pasar karena banyak keunggulannya dan harganya yang murah. Getaran yang terjadi selama proses pembubutan dapat menyebabkan efek yang tidak dikehendaki, seperti kebisingan, pengukuran yang salah, dan hasil pembubutan yang tidak optimal. Penilitian ini menyelediki pengaruh dari parameter pembubutan yaitu feed dan putaran spindel terhadap kekasaran pemukaan dan amplitudo getaran pembubutan baja AISI 1045 dengan menggunkan pahat karbida. Pengukuran kekasaran permukaan dilakukan menggunakan Microscope OLS4100 dan amplitudo getaran diukur menggunakan vibxpert II. Analisis yang dilakukan dari hasil pengukuran menggunakan perangkat lunak Minitab Statistical Software 22. Dari hasil analisis yang dilakukan, faktor feed merupakan faktor yang paling signifikan terhadap hasil kekasaran permukaan maupun amplitudo getaran. Parameter permesinan yang paling optimal terhadap kekasaran permukaan yaitu adalah feed 0.1 mm/put (lvl 1), kecepatan spindle 400 rpm (lvl4) dengan nilai kekasaran permukaan 4.757 µm. Parameter permesinan yang paling optimal terhadap Amplitudo getaran yaitu feed 0.1 mm/put (lvl 1) dan kecepatan spindle 100 rpm (lvl 1) dengan nilai amplitudo getaran adalah 0.11 m/s.
Implementasi Software ETABS( Extended Three Dimensional Analysis of Building System) Untuk Struktur Gedung Kos 3 Lantai Kab.Gowa Husein, Saddam; Darwis, Mardis
Jurnal Bangunan Konstruksi Vol 2 No 2 (2024): Barakka - Jurnal Bangunan Konstruksi
Publisher : PSTS FT UIM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63877/jbk.v2i2.98

Abstract

Penggunaan perangkat lunak untuk analisis dan desain struktur telah menjadi kebutuhan utama dalam dunia teknik sipil. ETABS (Extended Three-Dimensional Analysis of Building Systems) merupakan salah satu perangkat lunak populer yang digunakan untuk menganalisis kekuatan, stabilitas, dan kelayakan struktur bangunan. Artikel ini membahas implementasi ETABS dalam proses pengecekan struktur bangunan. Proses meliputi modelisasi, input data beban, analisis, dan interpretasi hasil untuk mengevaluasi kinerja struktur. Hasilnya menunjukkan bahwa ETABS meningkatkan efisiensi dan akurasi dalam perancangan struktur.. Etabs Adalah perangkat lunak (Sofware) analisis struktur dan desain bangunan yang dikembangkan oleh CSI (Computers and Structures,Inc).ETABS digunakan secara luas dalam industry Teknik sipil dan arsitektur,pada penelitian ini kami mengecek struktur kost 3 lantai di kab.gowa dengan analisis secara dinamis elastis.
Co-Authors Abdul Jalil Aji, Angga Asteriasti Aksar, Prinob AYU WARDANI, AYU Budiman Sudia, Budiman Cesar Putra, Fachrizal Darwin Darwin Defi, Sry Djamaluddin, Rudy Feliks Eldad Larobu Ibrahim, Fadel Khalifah Idris Putra, Muhammad Irmawaty, Rita Laode Abdul Gamsir Lukas Kano Mangalla, Lukas Kano Putra, Fachrizal Cesar Putra, Muhammad Idris Rahman, La Rambak, Ezra Pasereng Rustam Efendi Saddam Husein, Saddam Sahputra, Wahyu Puji Samhuddin Samhuddin, Samhuddin Simanjuntak, Raja Agung Hasudungan