| dc.contributor.author |
Mahalingam, Vignesh |
|
| dc.contributor.author |
Ranganathan, Raghavan |
|
| dc.coverage.spatial |
United States of America |
|
| dc.date.accessioned |
2025-09-04T07:14:08Z |
|
| dc.date.available |
2025-09-04T07:14:08Z |
|
| dc.date.issued |
2026-01 |
|
| dc.identifier.citation |
Mahalingam, Vignesh and Ranganathan, Raghavan, "Ballistic impact testing of acrylic and alumina thin-films", Materials Letters, DOI: 10.1016/j.matlet.2025.139351, vol. 403, Jan. 2026. |
|
| dc.identifier.issn |
0167-577X |
|
| dc.identifier.issn |
1873-4979 |
|
| dc.identifier.uri |
https://doi.org/10.1016/j.matlet.2025.139351 |
|
| dc.identifier.uri |
https://repository.iitgn.ac.in/handle/123456789/11841 |
|
| dc.description.abstract |
High velocity projectiles cause damage to critical structures in space. Many of them travel at speeds of a few km/s to several hundred km/s. Such projectiles can punch through aircraft. In addition, bullets from modern weapons might reach 2.5 km/s. Spherical diamond projectiles are tested against Poly-Methyl-Metha-Acrylate (PMMA) and single-crystal corundum alumina (𝛼-Al2O3 ) thin films. PMMA is created from two configurations: random and oriented along impact direction. The penetration velocity (V50) of PMMA and 𝛼-alumina are found to be near 400 m/s and 4.5 km/s, respectively. This study indicates that PMMA sandwiched between two layers of alumina can be produced, with a thickness that can be calculated using specific penetration energies (𝐸∗ 𝑝 ) from the projectile radius, to stop most projectiles effectively. |
|
| dc.description.statementofresponsibility |
by Vignesh Mahalingam and Raghavan Ranganathan |
|
| dc.format.extent |
vol. 403 |
|
| dc.language.iso |
en_US |
|
| dc.publisher |
Elsevier |
|
| dc.subject |
Molecular dynamics simulation |
|
| dc.subject |
Ballistic impact |
|
| dc.subject |
PMMA |
|
| dc.subject |
?-Al2O3 |
|
| dc.title |
Ballistic impact testing of acrylic and alumina thin-films |
|
| dc.type |
Article |
|
| dc.relation.journal |
Materials Letters |
|