EVERGREEN

Joint Journal of Novel Carbon Resource Sciences and Green Asia Strategy

ISSN:2189-0420 (Print until Mar 2020)
ISSN:2432-5953 (Online)

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Finite Element-Based Optimization of Weld Joint Locations in Passenger Train Carbodies

Priyambodo Nur Ardi Nugroho1,*, Agus Sasmito2, Mochammad Karim Al Amin1, Desrilia Nursyifaulkhair1, Gilang Cempaka Kusuma2, Irfan Eko Sandjaja2, Nandiko Rizal2, Totok Triputrastyo M2, Rudias Harmadi2, Nurcholis2
1Politeknik Perkapalan Negeri Surabaya (PPNS), Jl. Teknik Kimia, Keputih, Kec. Sukolilo, Surabaya, Jawa Timur 60111, Indonesia
2Badan Riset dan Inovasi Nasional (National Research and Innovation Agency), Jl. Hidro Dinamika, Keputih, Kec. Sukolilo, Surabaya, Jawa Timur 60112, Indonesia
*Author to whom correspondence should be addressed:
E-mail: priyambodo@ppns.ac.id (PNAN)
Evergreen, Vol. 13, Iss. 02, pp. 690–697, 2026
DOI: 10.5109/7429615
Creative Commons Attribution 4.0 International Creative Commons Attribution 4.0 International
Received: May 20, 2025 | Revised: January 21, 2026 | Accepted: April 28, 2026 | Published: June 2026
Abstract
This study aims to determine the optimal placement of welding joints on a passenger train carbody using Finite Element Method (FEM) analysis. The carbody was modeled in detail and analyzed under two primary loading scenarios: a 1000 kN compressive load and a uniformly distributed vertical load. The simulation revealed that the highest von Mises stress values occur near the center pivot and midspan regions, reaching approximately 246.91 MPa and 164 MPa, respectively. Maximum deformation was observed at the midspan, around 34.161 mm. In contrast, regions between the bolster and midspan showed significantly lower stress levels (0–82.3 MPa) and minimal deformation, indicating these areas are suitable for weld joint placement. By avoiding high-stress and high-deformation zones, the proposed approach contributes to improving fatigue resistance and extending the service life of the carbody structure.
Keywords
Finite element analysis; Stress distribution; Structural durability; Train carbody structure; Weld joint placement
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