PSI - Issue 81

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ScienceDirect

Procedia Structural Integrity 81 (2026) 84–91

© 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: water hyacinth collection vessel; load case variation; finite element analysis; structural integrity. 1. Introduction Water hyacinth ( Eichhornia crassipes ) is among the most aggressive invasive aquatic plants in tropical and subtropical regions, owing to its rapid growth, vegetative reproduction, and intense competition with native species (Tham, 2012; Téllez et al., 2008). Its uncontrolled proliferation results in dense biomass accumulation on water surfaces, causing significant ecological and socioeconomic impacts (Milićević, 2023). These effects include blocking waterways, making navigation harder, reducing water flow, increasing the risk of flooding, impairing the operation of irrigation and hydropower systems, and creating environments favorable to disease vectors (Wang, 2021; Prabhakaran et al., 2024; Villamagna and Murphy, 2010). Abstract Excessive growth of water hyacinth in waterways causes several issues, including ecological disruption and interference with human operations. One mitigation strategy is to use water hyacinth collection vessels equipped with trash boxes for storage. This study aims to analyze the structural response of the trash box under various operating loads using a finite-element model. The load variations considered were 50%, 75%, 100%, 125%, 150%, 175%, and 200% of the design capacity. The main parameters evaluated include stress distribution, displacement, and structural safety factors under a range of loading conditions, from normal to extreme. The results of this study indicate that increased operational loads correspondingly increase stress and displacement within the trash box structure. Variations in structural response across the load spectrum highlight the design’s performance limits and indicate potential critical conditions at higher capacities. Thes e findings are expected to serve as a foundation for the development and optimization of trash-box designs for water hyacinth collection vessels, thereby improving operational reliability and safety. VIII International Conference “In -service Damage of Materials: Diagnostics and Prediction ” (DMDP 2025) Numerical analysis of the effect of operating load variations on the structural response of the water hyacinth collection vessel trash box Mohammad Daffa Noorsyahputra a,b , Aprianur Fajri a , Aditya Rio Prabowo a, *, Rahman Wijaya a , Ristiyanto Adiputra c , Haris Nubli d , Jung Min Sohn e a Department of Mechanical Engineering, Universitas Sebelas Maret (UNS), Surakarta 57126, Indonesia b Laboratory of Design and Computational Mechanics, Faculty of Engineering, Universitas Sebelas Maret (UNS), Surakarta 57126, Indonesia c Research Center for Hydrodynamics Technology, National Research and Innovation Agency (BRIN), Surabaya 60112, Indonesia d School of Engineering, University of Surrey, Guildford GU2 7XH, United Kingdom e Department of Naval Architecture and Marine Systems Engineering, Pukyong National University, Busan 48513, South Korea

* Corresponding author. Tel.: +62-271-632-163; fax: +62-271-632-163. E-mail address: aditya@ft.uns.ac.id

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.2026.03.015