2026-04-132026-04-132026-02-14ISHIKAWA, Kadu Naoki. Análise numérica do comportamento estrutural de embarcações de aço submetidas a diferentes cenários de colisão. Orientador: André Vinícius da Costa Araujo. 2026. 123 f. Trabalho de Curso (Graduação) – Faculdade de Engenharia Naval, Instituto de Tecnologia, Universidade Federal do Pará, Belém, 2026. Disponível em: <https://bdm.ufpa.br/handle/prefix/9448>. Acesso em:.https://bdm.ufpa.br/handle/prefix/9448The intensification of inland waterway transportation and the increasing presence of bridges over navigable rivers have raised the occurrence of vessel–pier collisions, which are characterized by highly dynamic loads, large deformations, and strong structural nonlinearities. Traditionally, the assessment of these events has focused on bridge safety, relying on empirical formulations based on equivalent impact forces, which limits the understanding of the vessel’s structural response, the main energy-absorbing component during collision. In this context, this study aims to develop and apply an explicit dynamics numerical model based on the Finite Element Method to analyze the structural behavior of a steel vessel subjected to different collision scenarios against a rigid bridge pier. Twelve impact scenarios were simulated by varying the vessel’s approach velocity and impact angle, allowing the investigation of their influence on maximum deformation, equivalent stress distribution, and the overall energy balance of the system. The results show that oblique collisions may lead to higher plastic deformations and equivalent stresses in the vessel structure when compared to frontal impacts, even with a lower normal velocity component. This behavior is mainly associated with the increased contact area, longer deformation path, and the presence of shear and sliding effects during impact. It is concluded that the proposed methodology provides a more realistic representation of vessel–pier collision phenomena, contributing to a better understanding of energy absorption mechanisms and the structural failure potential of vessels, with reduced reliance on global empirical approximations.Acesso AbertoColisão de embarcações de açoDinâmica explícitaMétodo dos elementos finitosDeformação estruturalEnergia de impactoSteel vessel collisionExplicit dynamicsFinite element methodStructural deformationImpact energyCNPQ::ENGENHARIAS::ENGENHARIA NAVAL E OCEANICATrabalho de Curso - Graduação - MonografiaAttribution-NonCommercial-NoDerivs 3.0 Brazil