| Autor: |
Buyun Su, Zhiwei Zhou, Jianjun Zhang, Zhihua Wang, Xuefeng Shu, Zhiqiang Li |
| Jazyk: |
angličtina |
| Předmět: |
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| Zdroj: |
Latin American Journal of Solids and Structures, Vol 12, Iss 11, Pp 2045-2060 |
| Druh dokumentu: |
article |
| ISSN: |
1679-7825 |
| DOI: |
10.1590/1679-78251742 |
| Popis: |
Abstract Finite element analysis was used to investigate the impact behavior of the foam-cored sandwich shells under the ballistic impact. The ballistic limit, failure mode of the face-sheet and energy absorption of the uniform/graded core were discussed in this paper. Based on the impact phase diagrams, the effects of several factors (i.e. projectile shape and diameter, face-sheet curvature and thickness) on the normal/oblique impact behavior were analyzed in detail. Results indicate that blunter and larger projectiles, higher impact velocity and thicker face-sheets can significantly raise the impact-resistance performance of the targets. In addition, the behavior of ballistic impact becomes more complex as the result of the increasing oblique angle. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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