An Innovative Failure Criterion for Metal Cylindrical Shells under Explosive Loads

被引：3
作者：
Li, Yan [1 ,2 ]
Wang, Wen [1 ]
Chen, Zhanfeng [1 ,3 ]
机构：
[1] Hangzhou Dianzi Univ, Sch Mech Engn, Hangzhou 310018, Peoples R China
[2] Weifang Univ Sci & Technol, Facil Hort Lab Univ Shandong, Weifang 262700, Peoples R China
[3] China Univ Petr Huadong, Prov Key Lab Oil & Gas Storage & Transportat Safe, Qingdao 266580, Peoples R China
来源：
MATERIALS | 2022年 / 15卷 / 13期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
failure criterion; metal cylindrical shells; failure pressure; explosive load; STRESS YIELD CRITERION; DEFORMATION; PRESSURE;
D O I：
10.3390/ma15134376
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Metal cylindrical shells are widely used to store and transport highly hazardous chemicals. The impact resistance of metal cylindrical shells under an explosive load is a concern for researchers. In this paper, an innovative failure criterion considering the time effect is proposed for metal cylindrical shells under explosive loads. Firstly, based on the maximum shear stress criterion, an innovative failure criterion containing the time effect is provided. Then, a metal cylindrical shell model is established. Next, a failure pressure equation for metal shells under an explosive load is proposed based on the innovative failure criterion. Lastly, the proposed equation is verified by numerical simulation. The results indicate the failure pressure equation for a metal cylindrical shell under an explosive load uses the finite element method. Our research is of significance for fully understanding the failure mechanism of piping and pressure vessels under impact load.
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页数：14
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