PSI - Issue 81

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ScienceDirect

Procedia Structural Integrity 81 (2026) 11–17

© 2026 The Authors. Copy from the contract: Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of DMDP 2025 organizers Keywords: Container with unloading hatches; loading capacity; the strength calculation; container transportation. 1. Introduction Railway transport is the most important sector of the European economy, as it is described by Drozhzhyn (2024), Fischer and Kocsis Szürke (2023) and Tokmurzina-Kobernyak et al. (2025). It covers not only passenger transport, but also freight transport. Freight transport by rail is carried out both in the internal traffic of European countries and in the international traffic as it is described by Caban et al (2017), Nozhenko et al. (2021) and Semenov et al. (2023a, 2023b). For a long time, one of the most common types of cargo in international traffic is bulk cargo. Most of their transportation is carried out by rail. One of the most common bulk cargoes transported by rail is grain. As it is written by Caban et al. (2021), Gerlici et al. (2023) and Jakovlev et al. (2025), the difference in the width of the railway track between Europe and Ukraine leads to the introduction of modular vehicles that eliminate the need for cargo transshipment. Korlak (2022) writes that containers can be used for the transportation of bulk cargo. The lack of containers for the transportation of bulk cargo together with efforts for sustainable transportation solutions, as Abstract The article proposes a concept of a container for bulk cargo transportation including grain. This concept is based on a universal container of the standard size 1СС. A feature of a proposed modernization consists in an idea that a container floor is formed by covers of th e unloading hatches, and loading hatches are installed on a container roof. Study of the strength of the unloading hatch cover strength was conducted to substantiate the proposed modernization. A mathematical model of the dynamic load of the container under the conditions of railway transportation was created to determine the vertical dynamic loads acting on the hatch cover. The strength calculations were performed in the SolidWorks simulation software using the finite element method. The results of the strength calculations of the unloading hatch cover showed that the stresses in the hatch cover structure are lower by 11% than the permissible ones. Therefore, the strength of the container unloading hatch cover is maintained. The conducted research will contribute to increasing the efficiency of bulk cargo transportation in international traffic, as well as to create developments regarding the modernization of the existing container fleet for bulk cargo transportation. VIII International Conference “In - service Damage of Materials: Diagnostics and Prediction“ (DMDP 2025) Study of the hatch cover strength of a container for bulk cargo transportation Ján Dižo *, Alyona Lovska, Juraj Gerlici, Miroslav Blatnický University of Žilina, Univerzitná 8218/1, 010 26 Žilina, Slovak Republic

* Corresponding author. Tel.: +421 41 513 2560. E-mail address: jan.dizo@fstroj.uniza.sk

2452-3216 © 2026 The Authors. Copy from the contract: Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of DMDP 2025 organizers 10.1016/j.prostr.2026.03.003