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Blast Alleviation of Sacrificial Cladding with Graded and Uniform Cellular Materials

Graded cellular material is a superb sandwich candidate for blast alleviation, but it has a disadvantage for the anti-blast design of sacrificial cladding, i.e., the supporting stress for the graded cellular material cannot maintain a constant level. Thus, a density graded-uniform cellular sacrifici...

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Autores principales: Ding, Yuanyuan, Zheng, Yuxuan, Zheng, Zhijun, Wang, Yonggang, He, Siyuan, Zhou, Fenghua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7764827/
https://www.ncbi.nlm.nih.gov/pubmed/33317093
http://dx.doi.org/10.3390/ma13245616
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author Ding, Yuanyuan
Zheng, Yuxuan
Zheng, Zhijun
Wang, Yonggang
He, Siyuan
Zhou, Fenghua
author_facet Ding, Yuanyuan
Zheng, Yuxuan
Zheng, Zhijun
Wang, Yonggang
He, Siyuan
Zhou, Fenghua
author_sort Ding, Yuanyuan
collection PubMed
description Graded cellular material is a superb sandwich candidate for blast alleviation, but it has a disadvantage for the anti-blast design of sacrificial cladding, i.e., the supporting stress for the graded cellular material cannot maintain a constant level. Thus, a density graded-uniform cellular sacrificial cladding was developed, and its anti-blast response was investigated theoretically and numerically. One-dimensional nonlinear plastic shock models were proposed to analyze wave propagation in density graded-uniform cellular claddings under blast loading. There are two shock fronts in a positively graded-uniform cladding; while there are three shock fronts in a negatively graded-uniform cladding. Response features of density graded-uniform claddings were analyzed, and then a comparison with the cladding based on the uniform cellular material was carried out. Results showed that the cladding with uniform cellular materials is a good choice for the optimal mass design, while the density graded-uniform cladding is more advantageous from the perspective of the critical length design indicator. A partition diagram for the optimal length of sacrificial claddings under a defined blast loading was proposed for engineering design. Finally, cell-based finite element models were applied to verify the anti-blast response results of density graded-uniform claddings.
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spelling pubmed-77648272020-12-27 Blast Alleviation of Sacrificial Cladding with Graded and Uniform Cellular Materials Ding, Yuanyuan Zheng, Yuxuan Zheng, Zhijun Wang, Yonggang He, Siyuan Zhou, Fenghua Materials (Basel) Article Graded cellular material is a superb sandwich candidate for blast alleviation, but it has a disadvantage for the anti-blast design of sacrificial cladding, i.e., the supporting stress for the graded cellular material cannot maintain a constant level. Thus, a density graded-uniform cellular sacrificial cladding was developed, and its anti-blast response was investigated theoretically and numerically. One-dimensional nonlinear plastic shock models were proposed to analyze wave propagation in density graded-uniform cellular claddings under blast loading. There are two shock fronts in a positively graded-uniform cladding; while there are three shock fronts in a negatively graded-uniform cladding. Response features of density graded-uniform claddings were analyzed, and then a comparison with the cladding based on the uniform cellular material was carried out. Results showed that the cladding with uniform cellular materials is a good choice for the optimal mass design, while the density graded-uniform cladding is more advantageous from the perspective of the critical length design indicator. A partition diagram for the optimal length of sacrificial claddings under a defined blast loading was proposed for engineering design. Finally, cell-based finite element models were applied to verify the anti-blast response results of density graded-uniform claddings. MDPI 2020-12-09 /pmc/articles/PMC7764827/ /pubmed/33317093 http://dx.doi.org/10.3390/ma13245616 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ding, Yuanyuan
Zheng, Yuxuan
Zheng, Zhijun
Wang, Yonggang
He, Siyuan
Zhou, Fenghua
Blast Alleviation of Sacrificial Cladding with Graded and Uniform Cellular Materials
title Blast Alleviation of Sacrificial Cladding with Graded and Uniform Cellular Materials
title_full Blast Alleviation of Sacrificial Cladding with Graded and Uniform Cellular Materials
title_fullStr Blast Alleviation of Sacrificial Cladding with Graded and Uniform Cellular Materials
title_full_unstemmed Blast Alleviation of Sacrificial Cladding with Graded and Uniform Cellular Materials
title_short Blast Alleviation of Sacrificial Cladding with Graded and Uniform Cellular Materials
title_sort blast alleviation of sacrificial cladding with graded and uniform cellular materials
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7764827/
https://www.ncbi.nlm.nih.gov/pubmed/33317093
http://dx.doi.org/10.3390/ma13245616
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