[1]邹德磊,孙建刚,王振,等.飞射物撞击LNG储罐穹顶的试验与数值仿真分析[J].自然灾害学报,2017,(06):013-21.[doi:10.13577/j.jnd.2017.0602]
 ZOU Delei,SUN Jiangang,WANG Zhen,et al.Experiment and numerical simulation analysis of flying object impacting on LNG tank dome[J].,2017,(06):013-21.[doi:10.13577/j.jnd.2017.0602]
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飞射物撞击LNG储罐穹顶的试验与数值仿真分析
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
期数:
2017年06期
页码:
013-21
栏目:
出版日期:
2017-12-08

文章信息/Info

Title:
Experiment and numerical simulation analysis of flying object impacting on LNG tank dome
作者:
邹德磊12 孙建刚2 王振2 崔利富2
1. 大连海事大学 道路与桥梁工程研究所, 辽宁 大连 116026;
2. 大连民族大学 土木工程学院, 辽宁 大连 116600
Author(s):
ZOU Delei12 SUN Jiangang2 WANG Zhen2 CUI Lifu2
1. Institute of Road and Bridge Engineering, Dalian Maritime University, Dalian 116026, China;
2. College of Civil Engineering, Dalian Nationalities University, Dalian 116600, China
关键词:
大型LNG储罐穹顶飞射物冲击荷载试验数值仿真
Keywords:
large LNG storage tank domeflying projectileimpact loadingtestnumerical simulation
分类号:
TU352;X9
DOI:
10.13577/j.jnd.2017.0602
摘要:
为了研究大型LNG储罐穹顶在飞射物撞击作用下的破坏形态,获取关键损伤量,选取大型LNG储罐穹顶顶端最薄弱部位制备了局部壳体试件,以LNG接收站区常用φ101.6 mm(4in)NPS法兰的冲击能量为参照,分15个工况进行了相关试验和数值仿真研究。研究表明,不同撞击能量下LNG储罐穹顶的破坏形式主要有,冲击成坑、冲击震裂、冲击剥落屈曲、冲击侵彻屈曲、冲击贯穿屈曲。基于AUTODYN建立数值仿真模型,可以较好模拟飞射物撞击靶体的损伤发展过程,形象描述靶体内部的破坏形态,相关结果可以为LNG储罐穹顶的局部损伤评估和防护设计提供参考。
Abstract:
In order to study the failure form of large LNG tank dome under the impact loading of flying projectile and get the key physical quantity of damage, the related tests and numerical simulation are carried out in 15 working conditions with the weakest part of dome top of large LNG storage tank which was selected to prepare specimens, and the impact energy of φ 101.6 mm(4 in)NPS flange was used as reference. Research shows that the failure modes of LNG tank dome include impact crater, impact crack, impact spalling buckling, impact penetration buckling and impact run-through buckling under different impact energy. The simulation model established by AUTODYN can well show the damage development process and internal failure form of the flying object impacting the target. The related results can provide reference for local damage assessment and protection design of LNG storage tank dome.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-06-13;改回日期:2017-06-26。
基金项目:国家自然科学基金(51278089)
作者简介:邹德磊(1986-),男,工程师,硕士,主要从事防灾减灾工程及防护工程研究.E-mail:zdl6688@126.com
通讯作者:孙建刚(1959-),男,教授,博士,主要从事防灾减灾工程及防护工程研究.E-mail:sjg728@163.com
更新日期/Last Update: 1900-01-01