电焊机2024，Vol.54Issue(8)：103-108,118,7.DOI:10.7512/j.issn.1001-2303.2024.08.14
钛合金环肋结构焊接应力变形与承载能力仿真分析
Simulated Analysis of Welding Stress/Deformation and Carrying Capacity of Ring-Stiffened Cylindrical Structure of Titanium Alloy
李明 1纪涵 2唐敏 2朱时洋2
作者信息
- 1. 海装驻沈阳地区军事代表局驻沈阳地区第四军事代表室,辽宁 沈阳 110168
- 2. 武汉第二船舶设计研究所,湖北 武汉 430205
- 折叠
摘要
Abstract
The ring-stiffened cylindrical shell structure has strong pressure resistance,convenient assembly and welding pro-cess,and is widely used in the industry.However,welding usually involves residual stress and deformation,which may have a certain impact on the load-bearing capacity.Using the finite element analysis method,the full process of welding and pres-sure bearing was simulated on the titanium alloy of ring-stiffened cylindrical shell structure.It was found that the equivalent Mises stress is close to the yield strength of the material after welding,and the total deformation was small,with a maximum of 17.23mm.For simulating actual pressure,the deformation of the structure shows an approximately linear change when the pressure is loaded from 0 to 20MPa.The structures can bear the load well.As the pressure continues to increase,the stress level increases,and the model will begin to appear nonlinear deformation trend.It was found that the presence of re-sidual stress has no significant impact on the load-bearing capacity of the structure.Therefore,by analyzing the welding stress/deformation and carrying capacity of the structures,the technical support is provided for load-bearing level.关键词
钛合金/环肋圆柱壳/焊接应力与变形/承载能力/有限元仿真Key words
titanium alloy/ring-stiffened cylindrical shell/welding stress and deformation/carrying capacity/FEM simula-tion分类
矿业与冶金引用本文复制引用
李明,纪涵,唐敏,朱时洋..钛合金环肋结构焊接应力变形与承载能力仿真分析[J].电焊机,2024,54(8):103-108,118,7.
