循环载荷作用下船体结构极限强度研究综述  

Review of Ultimate Strength of Ship Hull Structures under Cyclic Loading

作　　者：赵南[1,2] 敖雷 汪高飞 李傅友 李飞 刘斌 ZHAO Nan;AO Lei;WANG Gaofei;LI Fuyou;LI Fei;LIU Bin(China Ship Scientific Research Center,Jiangsu Wuxi 214082,China;Taihu Laboratory of Deep Sea Technology Science,Jiangsu Wuxi 214082,China;Green&Smart River-Sea-Going Ship,Cruise and Yacht Research Centre,Wuhan University of Technology,Wuhan 430063,China)

机构地区：[1]中国船舶科学研究中心,江苏无锡214082 [2]深海技术科学太湖实验室,江苏无锡214082 [3]武汉理工大学绿色智能江海直达船舶与邮轮游艇研究中心,武汉430063

出　　处：《装备环境工程》2025年第2期62-76,共15页Equipment Environmental Engineering

基　　金：稳定支持项目(WDZC70202030201);国家自然科学基金(52301385)。

摘　　要：首先阐述了材料在循环载荷作用下的塑性累积特性,并重点介绍了仿真分析中常用的材料本构关系。然后从仿真和试验2个层面介绍了循环载荷作用下完整结构极限承载特性的研究工作,接着分析了裂纹损伤对循环载荷中结构承载特性的影响,阐明了裂纹在循环载荷作用下的变化规律。最后,总结讨论了循环载荷下损伤结构剩余强度评估方法及存在的问题,为研究人员提供一定参考。Firstly,the plastic accumulation characteristics of materials under cyclic loading were elucidatedand the com-monly used material constitutive relations in simulation analysis were highlighted.Next,the research on the ultimate load-bearing characteristics of complete structures was presented from both simulation and experimental perspectives under cy-clic loading.Then,the impact of crack damage on structural load-bearing characteristics under cyclic loading was analyzed and the variation patterns of cracks under such conditions were elucidated.Finally,the methods for evaluating the residual strength of damaged structures under cyclic loading and the existing issues were summarized and discussed,providing a reference for researchers.

关 键 词：船体梁 循环载荷 极限强度 塑性累积 棘轮效应 裂纹损伤 裂纹扩展 

分 类 号：U661.4[交通运输工程—船舶及航道工程]