Theoretical and Numerical Analysis of Blasting Pressure of Cylindrical Shells under Internal Explosive Loading

Cylindrical shells are principal structural elements that are used for many purposes, such as offshore, sub-marine, and airborne structures. The nonlinear mechanics model of internal blast loading was established to predict the dynamic blast pressure of cylindrical shells. However, due to the comple...

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Autores principales:	Zhan-Feng Chen, Hui-Jie Wang, Zhiqian Sang, Wen Wang, He Yang, Wei-Ming Meng, Yu-Xing Li
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	internal blast loading linearization dynamic blast pressure cylindrical shells analytical solution Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
Acceso en línea:	https://doaj.org/article/d11b4c75bf88433c818dd250c56fa0c6
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spelling	oai:doaj.org-article:d11b4c75bf88433c818dd250c56fa0c62021-11-25T18:05:11ZTheoretical and Numerical Analysis of Blasting Pressure of Cylindrical Shells under Internal Explosive Loading10.3390/jmse91112972077-1312https://doaj.org/article/d11b4c75bf88433c818dd250c56fa0c62021-11-01T00:00:00Zhttps://www.mdpi.com/2077-1312/9/11/1297https://doaj.org/toc/2077-1312Cylindrical shells are principal structural elements that are used for many purposes, such as offshore, sub-marine, and airborne structures. The nonlinear mechanics model of internal blast loading was established to predict the dynamic blast pressure of cylindrical shells. However, due to the complexity of the nonlinear mechanical model, the solution process is time-consuming. In this study, the nonlinear mechanics model of internal blast loading is linearized, and the dynamic blast pressure of cylindrical shells is solved. First, a mechanical model of cylindrical shells subjected to internal blast loading is proposed. To simplify the calculation, the internal blast loading is reduced to linearly uniform variations. Second, according to the stress function method, the dynamic blast pressure equation of cylindrical shells subjected to blast loading is derived. Third, the calculated results are compared with those of the finite element method (FEM) under different durations of dynamic pressure pulse. Finally, to reduce the errors, the dynamic blast pressure equation is further optimized. The results demonstrate that the optimized equation is in good agreement with the FEM, and is feasible to linearize the internal blast loading of cylindrical shells.Zhan-Feng ChenHui-Jie WangZhiqian SangWen WangHe YangWei-Ming MengYu-Xing LiMDPI AGarticleinternal blast loadinglinearizationdynamic blast pressurecylindrical shellsanalytical solutionNaval architecture. Shipbuilding. Marine engineeringVM1-989OceanographyGC1-1581ENJournal of Marine Science and Engineering, Vol 9, Iss 1297, p 1297 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	internal blast loading linearization dynamic blast pressure cylindrical shells analytical solution Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
spellingShingle	internal blast loading linearization dynamic blast pressure cylindrical shells analytical solution Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 Zhan-Feng Chen Hui-Jie Wang Zhiqian Sang Wen Wang He Yang Wei-Ming Meng Yu-Xing Li Theoretical and Numerical Analysis of Blasting Pressure of Cylindrical Shells under Internal Explosive Loading
description	Cylindrical shells are principal structural elements that are used for many purposes, such as offshore, sub-marine, and airborne structures. The nonlinear mechanics model of internal blast loading was established to predict the dynamic blast pressure of cylindrical shells. However, due to the complexity of the nonlinear mechanical model, the solution process is time-consuming. In this study, the nonlinear mechanics model of internal blast loading is linearized, and the dynamic blast pressure of cylindrical shells is solved. First, a mechanical model of cylindrical shells subjected to internal blast loading is proposed. To simplify the calculation, the internal blast loading is reduced to linearly uniform variations. Second, according to the stress function method, the dynamic blast pressure equation of cylindrical shells subjected to blast loading is derived. Third, the calculated results are compared with those of the finite element method (FEM) under different durations of dynamic pressure pulse. Finally, to reduce the errors, the dynamic blast pressure equation is further optimized. The results demonstrate that the optimized equation is in good agreement with the FEM, and is feasible to linearize the internal blast loading of cylindrical shells.
format	article
author	Zhan-Feng Chen Hui-Jie Wang Zhiqian Sang Wen Wang He Yang Wei-Ming Meng Yu-Xing Li
author_facet	Zhan-Feng Chen Hui-Jie Wang Zhiqian Sang Wen Wang He Yang Wei-Ming Meng Yu-Xing Li
author_sort	Zhan-Feng Chen
title	Theoretical and Numerical Analysis of Blasting Pressure of Cylindrical Shells under Internal Explosive Loading
title_short	Theoretical and Numerical Analysis of Blasting Pressure of Cylindrical Shells under Internal Explosive Loading
title_full	Theoretical and Numerical Analysis of Blasting Pressure of Cylindrical Shells under Internal Explosive Loading
title_fullStr	Theoretical and Numerical Analysis of Blasting Pressure of Cylindrical Shells under Internal Explosive Loading
title_full_unstemmed	Theoretical and Numerical Analysis of Blasting Pressure of Cylindrical Shells under Internal Explosive Loading
title_sort	theoretical and numerical analysis of blasting pressure of cylindrical shells under internal explosive loading
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d11b4c75bf88433c818dd250c56fa0c6
work_keys_str_mv	AT zhanfengchen theoreticalandnumericalanalysisofblastingpressureofcylindricalshellsunderinternalexplosiveloading AT huijiewang theoreticalandnumericalanalysisofblastingpressureofcylindricalshellsunderinternalexplosiveloading AT zhiqiansang theoreticalandnumericalanalysisofblastingpressureofcylindricalshellsunderinternalexplosiveloading AT wenwang theoreticalandnumericalanalysisofblastingpressureofcylindricalshellsunderinternalexplosiveloading AT heyang theoreticalandnumericalanalysisofblastingpressureofcylindricalshellsunderinternalexplosiveloading AT weimingmeng theoreticalandnumericalanalysisofblastingpressureofcylindricalshellsunderinternalexplosiveloading AT yuxingli theoreticalandnumericalanalysisofblastingpressureofcylindricalshellsunderinternalexplosiveloading
_version_	1718411645812736000

Theoretical and Numerical Analysis of Blasting Pressure of Cylindrical Shells under Internal Explosive Loading

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