Advance development in engineering and technology has been massively triggered by establishment of the free market memorandum between countries across the globe. Explicitly, this agreement affects ship and offshore industries, where stakeholder and investor demand a wide range of accidental damage assessment. Achievement of this objective is highly influenced by sustainable research on maritime accidents. Ship grounding is categorized in impact phenomena, and record has evidenced grounding as the most risky accident. Since it is capable to evoke massive losses, estimation of structural performance and limit under grounding is required. This work aims to evaluate crashworthiness of a thin-walled tanker structures in encountering ship grounding. A series of benchmark simulations based on pioneer experimental test is re-performed as calibration of numerical configuration for grounding analysis. Several scenarios are designed in this stage by varying mesh sizes on the idealized test geometry. Preparation for the grounding analysis is presented in the next stage. Considering its characteristic as impact load, powered-hard scenario is taken into account as the worst possible damage on the structures. It is assumed that grounding happens suddenly when the tanker is in a voyage and interacts with a hard object. A medium-carbon steel is embedded with the Det Norske Veritas - Germanischer Lloyd (DNVGL) fracture criterion. In this study, an oceanic obstruction is defined as seabed reef geometry with the properties are adopted based on data of ocean crustal seismology. Varieties of location, angle and elevation are applied to accidental grounding scenarios. The assessment of structural crashworthiness brings an insight into the effect sensitivity of the parameters on the double bottom behavior. Brief recommendation for grounding simulation is provided in final conclusion to give adequate references in applying numerical input and configuration, especially using the finite element (FE) method.
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机译：通过在全球各国之间建立自由市场备忘录，从事工程和技术的推进发展。明确地，本协议会影响船舶和离岸行业，利益相关方和投资者需要广泛的意外损害评估。实现这一目标的成就受到海事事故可持续研究的高度影响。船舶接地分类为影响现象，记录已证明是最具危险的事故。由于它能够唤起大量损耗，因此需要估计结构性能和极限在接地下。这项工作旨在评估薄壁油轮结构的崩溃，以遇到船舶接地。基于先驱实验测试的一系列基准模拟重新执行作为用于接地分析的数值配置的校准。通过在理想化测试几何体上变化网格尺寸，在此阶段设计了几种情况。接地分析的制备在下阶段呈现。考虑到其特征作为冲击负载，被引导的硬情绪被考虑为结构上最损坏。假设当油轮在航行时突然发生接地并与硬物相互作用。中碳钢嵌入DET NORSKE VERITAS - Germanischer Lloyd（DNVGL）骨折标准。在这项研究中，海洋梗阻被定义为海底珊瑚礁几何形状，基于海洋地壳地震学的数据采用了该性能。位置，角度和高度的品种适用于意外的接地场景。结构持续的评估具有对双底行为上参数的效果敏感性的洞察。在最终结论中提供了用于接地模拟的简要推荐，以提供适当的参考，用于应用数值输入和配置，特别是使用有限元（FE）方法。
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