Study of New Sandwiched Sphere Structures for Ballistic Protection
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University of Akron / OhioLINK
2013
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| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=akron1370821235 |
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ndltd-OhioLink-oai-etd.ohiolink.edu-akron13708212352021-08-03T05:24:02Z Study of New Sandwiched Sphere Structures for Ballistic Protection Fu, Yibin Mechanical Engineering Sandwiched structure Sphere arrangement Ballistic protection Square Based Pyramid Unit Cell Tumbling effect Tapered chain Expanded chain Numerical simulation Sphere structures for ballistic protection have rarely been studied. In this research a novel unit cell, called Square Based Pyramid Unit Cell (SBPUC), is created as a fundamental building block of new sandwiched sphere structures for the purpose of ballistic protection. Although it has been proved by the other authors that the arrangement of spheres in a tapered chain is an efficient way for impact energy absorption, it is very difficult to convert this 1D concept to 3D application in reality with arbitrary tapering angle. The adoption of SBPUCs may provide a good solution. In this research, four different sandwiched sphere structures are constructed with such SBPUCs. The effect of entry location, yield stress ratio, diameter ratio, and entry velocity are examined. It is believed that the sandwiched sphere structure with various sphere arrangements proposed in this study is a brand new member to the passive armor family. To improve the performance of a sandwiched sphere structure for ballistic impact protection, not only the tumbling effect, tapered chain effect, or expanded chain effect in one sandwich core but also multiple sandwich cores with different first layer sphere diameter and different thickness of front face plate as well as the material property of the target should be considered in the design. This study may provide a potential armor design platform which makes further performance improvement possible by optimizing the large parameter space associated with material selection and structure design. 2013-08-19 English text University of Akron / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=akron1370821235 http://rave.ohiolink.edu/etdc/view?acc_num=akron1370821235 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
| collection |
NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Mechanical Engineering Sandwiched structure Sphere arrangement Ballistic protection Square Based Pyramid Unit Cell Tumbling effect Tapered chain Expanded chain Numerical simulation |
| spellingShingle |
Mechanical Engineering Sandwiched structure Sphere arrangement Ballistic protection Square Based Pyramid Unit Cell Tumbling effect Tapered chain Expanded chain Numerical simulation Fu, Yibin Study of New Sandwiched Sphere Structures for Ballistic Protection |
| author |
Fu, Yibin |
| author_facet |
Fu, Yibin |
| author_sort |
Fu, Yibin |
| title |
Study of New Sandwiched Sphere Structures for Ballistic Protection |
| title_short |
Study of New Sandwiched Sphere Structures for Ballistic Protection |
| title_full |
Study of New Sandwiched Sphere Structures for Ballistic Protection |
| title_fullStr |
Study of New Sandwiched Sphere Structures for Ballistic Protection |
| title_full_unstemmed |
Study of New Sandwiched Sphere Structures for Ballistic Protection |
| title_sort |
study of new sandwiched sphere structures for ballistic protection |
| publisher |
University of Akron / OhioLINK |
| publishDate |
2013 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=akron1370821235 |
| work_keys_str_mv |
AT fuyibin studyofnewsandwichedspherestructuresforballisticprotection |
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