中国舰船研究2018，Vol.13Issue(3)：39-45,7.DOI:10.19693/j.issn.1673-3185.01134
舱内爆炸载荷下箱型梁船体节点结构强度分析
Strength analysis of box girder joint structures with frames subjected to internal blast loading
摘要
Abstract
[Objectives] In order to investigate the strength of the joint structure of box girders under internal explosion,[Methods] this paper use the explicit dynamic finite software ANSYS/LS-DYNA to establish a large complex typical cabin model. Numerical investigations are then conducted to analyze the dynamic response of different forms of joint structure under internal explosion using the ALE algorithm. The whole deformation/failure mode of cabin structures with the same charge mass and detonation position is obtained. A comparison of stress level at typical positions is then carried out in detail.[Results] The results show that the arc-arc type joint has a lower stress level compared to the bracket at the broadside. In the central position where a box girder is connected to a web beam,the arc-arc joint form is better than the other two.[Conclusions] The findings of this paper can provide useful references for the engineering application of joint structures.关键词
舱内爆炸/爆炸冲击载荷/箱型梁/节点结构/强度分析/数值模拟Key words
internal explosion/blast loading/box girder/joint structure/strength analysis/numerical simulation分类
交通工程引用本文复制引用
张弩,刘均,李凯,李德聪..舱内爆炸载荷下箱型梁船体节点结构强度分析[J].中国舰船研究,2018,13(3):39-45,7.基金项目
国家级重大基础研究项目 （）
