基于热弹塑性有限元法焊接模拟的船体开孔板极限强度分析  

Ultimate Strength Analysis of Perforated Hull Plates Based on Thermal Elastic-Plastic Finite Element Method Welding Simulation

作　　者：崔虎威 张朋 朱兴华 CUI Hu-wei;ZHANG Peng;ZHU Xinghua(School of Shipping and Naval Architecture,Chongqing Jiaotong University,Chongqing 400074,China;School of River and Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074,China;Hubei Key Laboratory of Inland Shipping Technology,Wuhan 430063,China;Chongqing High-tech Development and Construction Investment Group Co.,Ltd.,Chongqing 401329,China;Transportation Research and Design Institute,Chongqing Investment Promotion Bureau,Chongqing 400041,China)

机构地区：[1]重庆交通大学航运与船舶工程学院,重庆400074 [2]重庆交通大学河海学院,重庆400074 [3]内河航运技术湖北省重点实验室,武汉430063 [4]重庆高新开发建设投资集团有限公司,重庆401329 [5]招商局重庆交通科研设计院,重庆400041

出　　处：《船海工程》2025年第1期99-104,共6页Ship & Ocean Engineering

基　　金：国家自然科学基金(52001040);重庆市自然科学基金(cstc2021jcyj-msxmX0944);重庆市教委科学研究项目(KJZD-K202300710、KJQN202000712);内河航运技术湖北省重点实验室开放基金项目(NHHY2021004);重庆市研究生科研创新项目(2023S0077);重庆市研究生导师团队建设项目(JDDSTD2022009)。

摘　　要：为准确获取船体开孔板的焊接初始缺陷,借助有限元软件Abaqus先对船体开孔板焊接过程进行焊接模拟,继而对其极限强度开展了非线性有限元分析。结果表明,将基于热弹塑性有限元法获得船体开孔板焊接初始缺陷,运用于船体开孔板极限强度的分析可行。通过与已有经验公式进行对比,所选船体开孔板算例极限强度与经验公式计算值之间的误差均在10%以内。In order to obtain the welding initial imperfections of the perforated hull plate reasonably,the welding process of the perforated hull plate was numerical simulated by nonlinear finite element method in Abaqus,followed by a finite element analysis of its ultimate strength.It was shown that it is feasible to apply the thermal elastic-plastic finite element method based on the initial imperfections in the welding to the analysis of the ultimate strength of the perforated hull plates.The errors between the numerical results of the ultimate strength under the selected cases with those of existing empirical formula were within 10%.

关 键 词：热弹塑性有限元法 初始缺陷 船体开孔板 极限强度 

分 类 号：U661.43[交通运输工程—船舶及航道工程]