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Title: Ballistic impact on bi-layer alumina/aluminium armor : a semi-analytical approach
Authors: Chi, Runqiang
Serjouei, Ahmad
Sridhar, Idapalapati
Tan, Geoffrey E. B.
Keywords: DRNTU::Engineering::Materials
Issue Date: 2013
Source: 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.
Series/Report no.: International journal of impact engineering
Abstract: 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.
ISSN: 0734-743X
DOI: 10.1016/j.ijimpeng.2012.10.001
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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