Ballistic impact on bi-layer alumina/aluminium armor : a semi-analytical approach
This paper presents a semi-analytical approach on the performance of ceramic/metal armor under ballistic impact. Numerical simulations for alumina/aluminum armor impacted by 20 mm APDS in AUTODYN were carried out and verified against the experimental data. Comprehensive numerical simulations were pe...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/99481 http://hdl.handle.net/10220/17444 |
| _version_ | 1826113367553605632 |
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| author | Chi, Runqiang Serjouei, Ahmad Sridhar, Idapalapati Tan, Geoffrey E. B. |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Chi, Runqiang Serjouei, Ahmad Sridhar, Idapalapati Tan, Geoffrey E. B. |
| author_sort | Chi, Runqiang |
| collection | NTU |
| description | This paper presents a semi-analytical approach on the performance of ceramic/metal armor under ballistic impact. Numerical simulations for alumina/aluminum armor impacted by 20 mm APDS in AUTODYN were carried out and verified against the experimental data. Comprehensive numerical simulations were performed using the verified numerical model material parameters providing corroborative data for ensuing discussions. A semi-analytical model relating projectile residual velocity, impact velocity and armor ballistic limit velocity (BLV) is presented for impact of hard projectile against ceramic/metal armor. It is shown that the projectile residual velocity and BLV satisfy the replica scaling laws. Based on the replica scaling laws of projectile residual velocity and BLV, an empirical equation for BLV is obtained and used for armor optimization applications giving reasonable results similar to experiments available in the literature. |
| first_indexed | 2024-10-01T03:22:04Z |
| format | Journal Article |
| id | ntu-10356/99481 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:22:04Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/994812020-06-01T10:01:35Z Ballistic impact on bi-layer alumina/aluminium armor : a semi-analytical approach Chi, Runqiang Serjouei, Ahmad Sridhar, Idapalapati Tan, Geoffrey E. B. School of Materials Science & Engineering School of Mechanical and Aerospace Engineering DRNTU::Engineering::Materials This paper presents a semi-analytical approach on the performance of ceramic/metal armor under ballistic impact. Numerical simulations for alumina/aluminum armor impacted by 20 mm APDS in AUTODYN were carried out and verified against the experimental data. Comprehensive numerical simulations were performed using the verified numerical model material parameters providing corroborative data for ensuing discussions. A semi-analytical model relating projectile residual velocity, impact velocity and armor ballistic limit velocity (BLV) is presented for impact of hard projectile against ceramic/metal armor. It is shown that the projectile residual velocity and BLV satisfy the replica scaling laws. Based on the replica scaling laws of projectile residual velocity and BLV, an empirical equation for BLV is obtained and used for armor optimization applications giving reasonable results similar to experiments available in the literature. 2013-11-08T04:21:06Z 2019-12-06T20:07:57Z 2013-11-08T04:21:06Z 2019-12-06T20:07:57Z 2013 2013 Journal Article Chi, R., Serjouei, A., Sridhar, I., & Tan, G. E. B. (2013). Ballistic impact on bi-layer alumina/aluminium armor : A semi-analytical approach. International journal of impact engineering, 52, 37-46. 0734-743X https://hdl.handle.net/10356/99481 http://hdl.handle.net/10220/17444 10.1016/j.ijimpeng.2012.10.001 168095 en International journal of impact engineering |
| spellingShingle | DRNTU::Engineering::Materials Chi, Runqiang Serjouei, Ahmad Sridhar, Idapalapati Tan, Geoffrey E. B. Ballistic impact on bi-layer alumina/aluminium armor : a semi-analytical approach |
| title | Ballistic impact on bi-layer alumina/aluminium armor : a semi-analytical approach |
| title_full | Ballistic impact on bi-layer alumina/aluminium armor : a semi-analytical approach |
| title_fullStr | Ballistic impact on bi-layer alumina/aluminium armor : a semi-analytical approach |
| title_full_unstemmed | Ballistic impact on bi-layer alumina/aluminium armor : a semi-analytical approach |
| title_short | Ballistic impact on bi-layer alumina/aluminium armor : a semi-analytical approach |
| title_sort | ballistic impact on bi layer alumina aluminium armor a semi analytical approach |
| topic | DRNTU::Engineering::Materials |
| url | https://hdl.handle.net/10356/99481 http://hdl.handle.net/10220/17444 |
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