Numerical Study on Failure Process of Aluminium Plate Subjected to Normal Impact by Hemispherical Projectiles

Abstract:

In this paper a study is presented on the numerical analysis of the failure process of aluminium armour plate subjected to normal impact by hemispherical projectiles. The perforation process has been simulated by the application of 3D analysis using IMPACT dynamic FE program suite. The comparison on the elements size of meshing towards failure mode was observed and evaluated. The material behaviour of the target plate was approximated by an appropriate constitutive relation. The study covered different size of meshing element on target plate as well as different level of impact velocities. Different failure modes for each case were found. For low speed impact condition a petalling was observed, whereas for high speed impact a radial neck along with a holes enlargement was observed with better and uniform perforation mode. The deformation and failure mode of the impacted target plate will be given special attention in this investigation.

• Periodical: Applied Mechanics and Materials (Volume 660)
• Pages: 598-602
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.660.598
• Online since: October 2014
• Authors: M.N. Ibrahim*, Waluyo Adi Siswanto, Ahmad Mujahid Ahmad Zaidi
• Keywords: Finite Element Method (FEM), Material Constitutive Model, Projectile Impact

References

[1] W. Song, J. Ning, J. Wang, Normal impact of truncated oval-nosed projectiles on stiffened plates, Int. J. Impact Eng., 35(9)(2008) 1022-1034.

DOI: 10.1016/j.ijimpeng.2007.05.008

[2] J. Rodriguez-Martinez, A. Rusinek, P. Chevrier, R. Bernier, A. Arias, Temperature measurements on ES steel sheets subjected to perforation by hemispherical projectiles. Int. J. Impact Eng., 37(2010) 828-841.

DOI: 10.1016/j.ijimpeng.2009.12.005

[3] J. Rodriguez-Martinez, A. Rusinek, R. Pesci, R. Zaera, Experimental and numerical analysis of the martensitic transformation in AISI 304 steel sheets subjected to perforation by conical and hemispherical projectiles. Int.J. Solids and Struct., 50(2013).

DOI: 10.1016/j.ijsolstr.2012.09.019

[4] X. Teng, T. Wierzbicki, S. Hiermaier, I. Rohr, Numerical prediction of fracture in the Taylor test. International Journal of Solids and Structures 42(2005) 2929-2948.

DOI: 10.1016/j.ijsolstr.2004.09.039

[5] Z. Liu,S. Swaddiwudhipong, M. Islam, Perforation of steel and aluminium targets using a modified Johnson-cook material model, Nuclear Eng. and Design 250(0)(2012) 108-115.

DOI: 10.1016/j.nucengdes.2012.06.026

[6] Z. Wei, D. Yunfei, C. Z. Sheng, W. Gang, Experimental investigation on the ballistic performance of monolithic and layered metal plates subjected to impact by blunt rigid projectiles, Int. J. Impact Engineering 49(2012) 115-129.

DOI: 10.1016/j.ijimpeng.2012.06.001

[7] T. Borvik, M. Forrestal, O. Hopperstad, T. Warren, M. Langseth, Perforation of AA5083-H116 aluminium plates with conical-nose steel projectiles – calculations, Int. J. Impact Eng., 36 (2009) 426-437.

DOI: 10.1016/j.ijimpeng.2008.02.004

[8] M. N. Ibrahim, W. A. Siswanto, A. M. A. Zaidi, Computational issues in the simulation of high speed ballistic impact: A review, Applied Mechanics and Materials, 315(2013)762-767.

DOI: 10.4028/www.scientific.net/amm.315.762

[9] T. Belytschko, W.K. Liu, B. Moran, Nonlinear finite elements for continua and Structure, (1998).

[10] C. Lim, W. Stronge, Normal elastic-plastic impact in plane strain, Math. and Comp. Modelling, 28(1998) 323-340.

DOI: 10.1016/s0895-7177(98)00125-3

[11] A. Rusinek, J Rodriguez-Martinez, R. Zaera, J. Klepaczko, A. Arias, C. Sauvelet, Experimental and numerical study on the perforation process of mild steel sheets subjected to perpendicular impact by hemispherical projectiles, Int. J. Impact Eng., 36(2009).

DOI: 10.1016/j.ijimpeng.2008.09.004

[12] T. Wierzbicki, Petalling of plates under explosive and impact loading, Int. J. Impact Eng. 22(1999) 935-954.

DOI: 10.1016/s0734-743x(99)00028-7