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All Journal Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Malikussaleh Journal of Mechanical Science Technology Journal Of Sustainability Perspectives Journal of Sustainability Perspectives Jurnal Sains dan Teknologi JURUTERA (Jurnal Umum Teknik Terapan) Journal of Innovative and Creativity Jurnal Malikussaleh Mengabdi Jurnal Masyarakat Berdikari dan Berkarya (MARDIKA)
Amalia Harmin
Program Studi Teknik Mesin, Fakultas Teknik, Universitas Samudra, Meurandeh, Aceh
Religion Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Other

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Stress and Strain Analysis of the Front Planetary Sun Gear of a Helical Differential Using the Finite Element Method with Variations in Initial Crack Conditions: Analisis Tegangan dan Regangan pada Front Planetary Sun Gear Diferensial Roda Gigi Miring Menggunakan Metode Elemen Hingga dengan Variasi Kondisi Retak Awal Fauzan, Fauzan; Harmin, Amalia; Isra, Muhammad
Malikussaleh Journal of Mechanical Science and Technology Vol. 9 No. 2 (2025): Malikussaleh Journal of Mechanical Science and Technology (MJMST)
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v9i2.25169

Abstract

This study aims to analyze the stress and strain distribution on the front planetary sun gear of a helical differential using the Finite Element Method (FEM). The analysis was carried out under two conditions: without a crack and with an initial crack of 1 mm placed at the tensile side tooth root, in order to evaluate the effect of defect presence on the mechanical behavior of the gear under an operational torque load of 175 Nm. Three-dimensional modeling and meshing were performed using ANSYS software, with SCM420 steel as the material, which has an allowable stress of 1,300 MPa. The simulation results show that the maximum stress in the uncracked model reached 8,859.6 MPa, while in the cracked model it increased to 15,258 MPa. Meanwhile, the maximum equivalent elastic strain increased from 4.437 × 10⁻² mm/mm to 1.154 × 10⁻¹ mm/mm. This significant increase indicates that the presence of an initial crack intensifies stress concentration and amplifies local deformation, potentially accelerating crack initiation and propagation due to the increased strain energy accumulated near the crack tip. Based on these findings, optimization of the fillet radius and the application of surface treatments such as shot peening or advanced carburizing are recommended to reduce peak stresses and extend gear fatigue life. The results of this study demonstrate that the FEM approach is effective in predicting structural behavior and serves as a basis for the development of reliability-based design and condition monitoring systems in modern automotive transmissions.
Co-Authors A. Abdullah, Nasruddin Afrahun Naziah Akbar Rizqullah Alfarizi, Daffa Alfina Trisman Yanti Alnanda Hafiez Lagalgarin Ami Nur Jihan Bukhari Bukhari Chyndi Chelvia EDI SAPUTRA Fadhilla, Cut Alna Faris Ahmad Mizanus Sabri Fauzan Fauzan Fauzan . Fauzia, Arisna Fazri Amir Gunawan, Chichi Rizka Hamdani Hamdani Hamdani Umar Helvy Ramadhani ISKANDAR Isra, Muhammad Kamar, Iqbal Luthfi Furqan Hidayah Marini Bravikawati Muhammad Dimas Aditia Muhammad Isra Muhammad Isra Muhammad Nuzan Rizki Muhammad Nuzan Rizki Muhammad Razi Muhammad Syahril Muhammad Zulfri Musfirah, Rizka Nanda Saleysia Aziza Nazaruddin Abdul Rachman Naziah, Afrahun Nurkhairunnisa Siregar Putra Wiratama, Andika Rifah Nurhidayah Rita Syntia Rita Syntia Rita Syntia Rizqullah, Akbar Sarah Niaci Sari, Ceni Febi Kurnia Sri Cahyani Sumardi . Syahri, Alfi Syamsiar, Syamsiar Taufan Arif Adlie Taufiq Kamil Tjut Rizqi Maysyarah Hadi Usman Usman Widodo, Syamsul Bahri Yunus, Azwar Zainal Arif