典型船体结构在不同腐蚀深度及位置的情况下，为了研究其应力分布的规律，选取加筋板模型作为研究对象，使用大型有限元分析软件对含有不同深度及位置腐蚀损伤的加筋板模型进行仿真和计算，后处理阶段将应力响应作为关键的特征参数，得到了加筋板在各个工况下的应力响应情况。在将各个腐蚀工况下加筋板的应力响应状态进行对比和进一步分析的基础上，总结得出了腐蚀深度及位置变化对典型船体结构应力的影响规律：结构应力随着腐蚀深度的增大而增大；腐蚀的位置不同，船体结构的应力也发生明显变化，在腐蚀深度一致的条件下，靠近其边界的腐蚀会对其应力分布有更加深远的影响。
In order to study the stress distribution of typical hull structures with different corrosion depths and locations, the stiffened plate model was selected as the research object. Large-scale finite element analysis software was used to simulate and calculate the model of the stiffened plate with corrosion damage at different depths and locations. In the post-processing stage, the stress response was taken as the key characteristic parameter to obtain the stress response of the stiffened plate under various working conditions. Based on the comparison and further analysis of the stress response state of stiffened plates under various corrosion conditions, the influence law of corrosion depth and position change on the stress of typical hull structure is summarized: the structural stress increases with the increase of corrosion depth; The stress of the hull structure changes obviously with different corrosion locations. Under the condition of the same corrosion depth, the corrosion near the boundary will have a more profound influence on the stress distribution.
2022,44(12): 48-51 收稿日期：2021-05-26
DOI：10.3404/j.issn.1672-7649.2022.12.010
分类号：U661
基金项目：国家自然科学基金资助项目（52001326）
作者简介：邓剑啸(1996-)，男，硕士研究生，研究方向为舰船设计制造与维修工程
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