局部剪切对船舶结构疲劳强度评定的影响

IF 2.3 3区 工程技术 Q2 ENGINEERING, MARINE International Journal of Naval Architecture and Ocean Engineering Pub Date : 2023-01-01 DOI:10.1016/j.ijnaoe.2022.100508
Arturo Silva-Campillo , J.C. Suárez-Bermejo , M.A. Herreros-Sierra
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引用次数: 0

摘要

这项工作的目的是评估不同的设计方案,以获得选择最有效设计的标准,通过对侧面船体结构(上翼扭转箱)中纵向或普通加强筋与横向腹板框架(长腹板)之间连接的局部切割进行疲劳强度评估,这是由于其高应力集中而非常重要的区域。就其对世界经济的影响而言,这是最重要的船只之一。通过实验验证的数值模型,建立了结构解决方案和设计准则,从而可以获得改善其疲劳性能的替代设计。在不同变量(曲率半径、纵向间距、纵向加强筋截面和法兰布置)存在的情况下,对标准切割几何形状进行了研究,以确定它们在结构评估(疲劳损伤、应力集中和断裂力学)中的影响以及替代方案之间的重量比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Effect of local cut-out on fatigue strength assessment in ship structures

The aim of the work is to evaluate different design alternatives to obtain criteria for the selection of the most effective design by fatigue strength assessment of the local cut-out as a result of the connection between the longitudinal or ordinary stiffener and the transverse web frame (longi-web) in the side hull structure (upper wing torsional box), very important area due to its high stress concentration, of a container vessel, one of the most important ships in terms of its influence on the world economy. Structural solutions and design guidelines are established, by means of numerical models validated by experimental tests, which allow alternative designs to be obtained that improve their fatigue behaviour. Standard cut-out geometries are studied under the presence of different variables (radius of curvature, longitudinal spacing, longitudinal stiffener cross-section, and flange arrangement) that are evaluated to determine their effect in the structural assessment (fatigue damage, stress concentration, and fracture mechanics) and the weight comparison between alternatives.

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来源期刊
CiteScore
4.90
自引率
4.50%
发文量
62
审稿时长
12 months
期刊介绍: International Journal of Naval Architecture and Ocean Engineering provides a forum for engineers and scientists from a wide range of disciplines to present and discuss various phenomena in the utilization and preservation of ocean environment. Without being limited by the traditional categorization, it is encouraged to present advanced technology development and scientific research, as long as they are aimed for more and better human engagement with ocean environment. Topics include, but not limited to: marine hydrodynamics; structural mechanics; marine propulsion system; design methodology & practice; production technology; system dynamics & control; marine equipment technology; materials science; underwater acoustics; ocean remote sensing; and information technology related to ship and marine systems; ocean energy systems; marine environmental engineering; maritime safety engineering; polar & arctic engineering; coastal & port engineering; subsea engineering; and specialized watercraft engineering.
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