CAJ | 학술논문

针对船舶甲板板等高应力厚板区域开孔的应力集中问题和开孔处覆板的广泛使用现状,在有限元分析方法中利用三维实体单元精确模拟了母板、覆板及焊缝,从而对不同厚度的覆板在缓解应力集中时的效果进行了量化分析.同时针对船舶设计和校核的实际情况,对比了二维单元模拟的不同方法,得出了其中较为准确和可行的方案.
침대선박갑판판등고응력후판구역개공적응력집중문제화개공처복판적엄범사용현상,재유한원분석방법중이용삼유실체단원정학모의료모판、복판급한봉,종이대불동후도적복판재완해응력집중시적효과진행료양화분석.동시침대선박설계화교핵적실제정황,대비료이유단원모의적불동방법,득출료기중교위준학화가행적방안.
Due to the stress concentration problem around the openings in high-stress thick plates such as the main deck, and the truth that the doubler plates are widely-used on the openings, the precise simulations are carried out by 3D solid elements in FE model and the quantitative analysis of stress concentration relief effect is made as per different thickness ratio of doubler plates. Furthermore, according to the practical condition in ship design and evaluation, the 2D simulations with different methods are compared and a relatively precise and practical method is gained.