PSI - Issue 36

Valeriy Kharchenko et al. / Procedia Structural Integrity 36 (2022) 137–144 Valeriy Kharchenko, Eugene Kondryakov, Oleg Katok et al. / Structural Integrity Procedia 00 (2021) 000 – 000

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Fig. 9. Support (a) and punches of various shapes (b) for dynamic perforation tests.

To clarify the parameters' values of the materials deformation models, complex experimental and computational studies of the thin plates perforation processes at different strain rates are required. 4. Conclusions The technique was developed, as well as the finite element models were constructed for the numerical simulation of deformation and fracture under static and dynamic perforation of thin plates. The analysis of the stress-strain state and crack propagation kinetics in the plate of steel Armox 500T was made under static and dynamic perforation using the flat and hemispherical indenters. The obtained results were in good agreement with the results of experimental investigations. Based on the results of numerical simulation, the method of dynamic perforation testing was developed. References Choudhary, S., Singh, P., Khare, S., Kumar, K., Mahajan, P., Verma, R., 2020. Ballistic impact behaviour of newly developed armour grade steel: An experimental and numerical study. International Journal of Impact Engineering 140, 103557. Cowper, G., Symonds, P., 1957. Strain-hardening and strain-rate effects in the impact loading of cantilever beam. Providence, R.I.: Division of Applied Mathematics, 11-28. Dey, S., Børvik, T., Hopperstad, O., Leinum, J., Langseth, M., 2004. The effect of target strength on the perforation of steel plates using three different projectile nose shapes. International Journal of Impact Engineering 30, 1005-1038. Fras, T., Roth, C., Mohr, D., 2018. Fracture of high-strength armor steel under impact loading. International Journal of Impact Engineering 111, 147-164. Iqbal, M., Senthil, K., Sharma, P., Gupta N., 2016. An investigation of the constitutive behavior of Armox 500T steel and armor piercing incendiary projectile material. International Journal of Impact Engineering 96, 146 – 164. Johnson, G., Cook, W., 1985. Fracture characteristics of three metals subjected to various strains, strain rates, temperatures and pressures. Engg Fracture Mech 21, 31 – 48. Koubaa, S., Mars, J., Wali, M., Dammak, F., 2017. Numerical study of anisotropic behavior of Aluminum alloy subjected to dynamic perforation. International Journal of Impact Engineering 101, 105 – 114. Popławski, A. , Kędzierski, P. , Morka A., 2020. Identification of Armox 500T steel failure properties in the modeling of perforation problems. Materials & Design 190, 1-28. Tenggren, R., 2014. How bending affects the ballistic properties of Armox. Degree project, in materials science and engineering, second level, Sweden, pp. 58. Tvergaard, V., Needleman A., 1986. Effect of material rate sensitivity on failure modes in the Charpy V – notch test. J Mech Phys Solids 34, 213- 241.