Laterally pre-compressed SiC tiles against long rod impact
A combined experimental and computational study was carried out to investigate ballistic performance of laterally preload compressed SiC tile against long rod impact. A 100 100 b y 20 mm thick SiC tile was pushed into a 5 mm thick steel frame at high temperature of 430 C so that after cool down to...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/106013 http://hdl.handle.net/10220/48828 |
| _version_ | 1811677398877339648 |
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| author | Yuan, Jianming Luo, Boyang Goh, Wei Liang Chen, Zhong |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Yuan, Jianming Luo, Boyang Goh, Wei Liang Chen, Zhong |
| author_sort | Yuan, Jianming |
| collection | NTU |
| description | A combined experimental and computational study was carried out to investigate ballistic performance of laterally preload compressed SiC tile against long rod impact. A 100 100 b y 20 mm thick SiC tile was pushed into a 5 mm thick steel frame at high temperature of 430 C so that after cool down to room temperature, the lateral preload compressive stress was developed in the SiC tiles. Depth of penetration tests of the SiC tiles with and without pre-stress were performed, where tungsten alloy long rods at a nominal velocity of 1240 m/s were launched to hit the SiC tiles backed by the steel blocks. Compared with the SiC tiles without any pre-stress, the pre-compressed SiC tiles were found to reduce significantly the residual penetration in the backing block. Simulations were carried out using the LS-dyna hydrocode, taking account of preload stress. The simulations showed that the lateral preload compression strengthened the intact SiC tiles and dwell occurred in the early penetration stage, eroding the striking long rod efficiently. |
| first_indexed | 2024-10-01T02:36:44Z |
| format | Journal Article |
| id | ntu-10356/106013 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:36:44Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/1060132020-09-26T22:16:20Z Laterally pre-compressed SiC tiles against long rod impact Yuan, Jianming Luo, Boyang Goh, Wei Liang Chen, Zhong School of Materials Science & Engineering Temasek Laboratories Pre-compressed SiC Tile DRNTU::Engineering::Materials DOP Test A combined experimental and computational study was carried out to investigate ballistic performance of laterally preload compressed SiC tile against long rod impact. A 100 100 b y 20 mm thick SiC tile was pushed into a 5 mm thick steel frame at high temperature of 430 C so that after cool down to room temperature, the lateral preload compressive stress was developed in the SiC tiles. Depth of penetration tests of the SiC tiles with and without pre-stress were performed, where tungsten alloy long rods at a nominal velocity of 1240 m/s were launched to hit the SiC tiles backed by the steel blocks. Compared with the SiC tiles without any pre-stress, the pre-compressed SiC tiles were found to reduce significantly the residual penetration in the backing block. Simulations were carried out using the LS-dyna hydrocode, taking account of preload stress. The simulations showed that the lateral preload compression strengthened the intact SiC tiles and dwell occurred in the early penetration stage, eroding the striking long rod efficiently. Published version 2019-06-19T04:14:32Z 2019-12-06T22:02:54Z 2019-06-19T04:14:32Z 2019-12-06T22:02:54Z 2018 2018 Journal Article Luo, B., Goh, W. L.., Chen, Z., & Yuan, J. (2018). Laterally pre-compressed SiC tiles against long rod impact. Defence Technology, 14(5), 585-589. doi:10.1016/j.dt.2018.07.007 https://hdl.handle.net/10356/106013 http://hdl.handle.net/10220/48828 10.1016/j.dt.2018.07.007 213380 en Defence Technology © 2018 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). 5 p. application/pdf |
| spellingShingle | Pre-compressed SiC Tile DRNTU::Engineering::Materials DOP Test Yuan, Jianming Luo, Boyang Goh, Wei Liang Chen, Zhong Laterally pre-compressed SiC tiles against long rod impact |
| title | Laterally pre-compressed SiC tiles against long rod impact |
| title_full | Laterally pre-compressed SiC tiles against long rod impact |
| title_fullStr | Laterally pre-compressed SiC tiles against long rod impact |
| title_full_unstemmed | Laterally pre-compressed SiC tiles against long rod impact |
| title_short | Laterally pre-compressed SiC tiles against long rod impact |
| title_sort | laterally pre compressed sic tiles against long rod impact |
| topic | Pre-compressed SiC Tile DRNTU::Engineering::Materials DOP Test |
| url | https://hdl.handle.net/10356/106013 http://hdl.handle.net/10220/48828 |
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