Experimental and Numerical Investigations of the Effect of Impact Angle and Impactor Geometry on the High-Velocity Impact Response of Aluminum Honeycomb Structures

Subject Areas : Engineering

H Alikhani ¹ , S Derakhshan ² , H Khoramishad ^{3 *}

1 - School of Mechanical Engineering, Iran University of Science & Technology (IUST), Narmak, Tehran 16846-13114, Iran
2 - School of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran
3 - School of Mechanical Engineering, Iran University of Science & Technology (IUST), Narmak, Tehran 16846-13114, Iran

Received: 2022-06-30 Accepted : 2022-08-31 Published : 2022-12-01

Keywords: energy absorption, Impactor geometry, High-velocity impact, Aluminum honeycomb, Impact angle,

Abstract :

In this study, the effects of impact angle and impactor geometry were investigated on the impact behavior of aluminum honeycombs experimentally and numerically. The high-velocity impact tests were carried out using a gas-gun test machine with flat, spherical and conical-head impactors and impact angles of 0°, 15° and 30° at different incident velocities ranging from 55.8 to 150.5 m/s. The numerical models were developed in LS-Dyna finite element code and well validated against the experimental results. The results showed that the impact behavior of honeycombs is considerably dependent on the impactor head geometry and the impact angle. The honeycomb panel impacted by the conical projectile experienced the highest absorbed energy and ballistic limit velocity. Moreover, it was found out that increasing the impact angle increased the absorbed energy and ballistic limit velocity of honeycombs. Furthermore, different impactor head geometries resulted in different failure mechanisms in the course of impact loading.

References:

1. Zhang X., Zhang H., Wen Z., 2014, Experimental and numerical studies on the crush resistance of aluminum honeycombs with various cell configurations, International Journal of Impact Engineering66: 48-59.


2. Galehdari S.A., Khodarahmi H., Atrian A., 2017, Design and analysis of graded honeycomb shock absorber for increasing the safety of passengers in armored vehicles exposed to mine explosion, Journal of Solid Mechanics 9(2): 370-383.


3. Zhou Q., Mayer R.R., 2002, Characterization of aluminum honeycomb material failure in large deformation compression, shear, and tearing, Journal of Engineering Materials and Technology124(4): 412-420.


4. Fleck N.A., Deshpande V.S., 2004, The resistance of clamped sandwich beams to shock loading, Journal of Applied Mechanics71(3): 386-401.


5. Yahaya M.A., Ruan D., Lu G., Dargusch M.S., 2015, Response of aluminium honeycomb sandwich panels subjected to foam projectile impact–An experimental study, International Journal of Impact Engineering75: 100-109.


6. Zhang Q.N., Zhang X.W., Lu G.X., Ruan D., 2018, Ballistic impact behaviors of aluminum alloy sandwich panels with honeycomb cores: An experimental study, Journal of Sandwich Structures & Materials20(7): 861-884.


7. Hassanpour Roudbeneh F., Liaghat G., Sabouri H., Hadavinia H., 2018, Experimental investigation of impact loading on honeycomb sandwich panels filled with foam, International Journal of Crashworthiness 24: 119-210.


8. Sun G., Chen D., Wang H., Hazell P.J., Li Q., 2018, High-velocity impact behaviour of aluminium honeycomb sandwich panels with different structural configurations, International Journal of Impact Engineering122: 119-136.


9. Xu S., Beynon J.H., Ruan D., Lu G., 2012, Experimental study of the out-of-plane dynamic compression of hexagonal honeycombs, Composite Structures94(8): 2326-2336.


10. Zhao H., Gary G., 1998, Crushing behaviour of aluminium honeycombs under impact loading, International Journal of Impact Engineering21(10): 827-836.


11. Baker W.E., Togami T.C., Weydert J.C., 1998, Static and dynamic properties of high-density metal honeycombs, International Journal of Impact Engineering21(3): 149-163.


12. Liaghat G.H., Nia A.A., Daghyani H.R., Sadighi M., 2010, Ballistic limit evaluation for impact of cylindrical projectiles on honeycomb panels, Thin-Walled Structures48(1): 55-61.


13. He W., Yao L., Meng X., Sun G., Xie D., Liu J., 2019, Effect of structural parameters on low-velocity impact behavior of aluminum honeycomb sandwich structures with CFRP face sheets, Thin-Walled Structures137: 411-432.


14. Guan G.Y., Liu Z.C., Hu G., Zhang Y., 2017, Experimental study of the effect of aluminum panel thickness on flexural properties of nomex honeycomb sandwich structure subjected to low velocity impact, Journal of Experimental Mechanics 2017(4): 14.


15. Yamashita M., Gotoh M., 2005, Impact behavior of honeycomb structures with various cell specifications—numerical simulation and experiment, International Journal of Impact Engineering32(1-4): 618-630.


16. Wu Y., Meng L.Q., Zhou Z.W., Shu X.F., 2011, Deformation mode analysis of nomex honeycomb sandwich beam subjected to impact loading, Journal of Experimental Mechanics 2011(6): 17.


17. Qi C., Remennikov A., Pei L.Z., Yang S., Yu Z.H., Ngo T.D., 2017, Impact and close-in blast response of auxetic honeycomb-cored sandwich panels: Experimental tests and numerical simulations, Composite Structures180: 161-178.


18. Hosseini M., Khalili S.M.R., 2013, Analytical prediction of indentation and low-velocity impact responses of fully backed composite sandwich plates, Journal of Solid Mechanics 5: 278-289.


19. Gunes R., Arslan K., 2016, Development of numerical realistic model for predicting low-velocity impact response of aluminium honeycomb sandwich structures, Journal of Sandwich Structures & Materials18(1): 95-112.


20. Galehdari S.A., Kadkhodayan M., Hadidi-Moud S., 2015, Low velocity impact and quasi-static in-plane loading on a graded honeycomb structure; experimental, analytical and numerical study, Aerospace Science and Technology47: 425-433.


21. Aktay L., Johnson A.F., Kröplin B.H., 2008, Numerical modelling of honeycomb core crush behavior, Engineering Fracture Mechanics75(9): 2616-2630.


22. Li L., Zhao Z., Zhang R., Han B., Zhang Q., Lu T.J., 2019, Dual-level stress plateaus in honeycombs subjected to impact loading: perspectives from bucklewaves, buckling and cell-wall progressive folding, Acta Mechanica Sinica 35(1): 70-77.


23. Recht R., Ipson T.W., 1963, Ballistic perforation dynamics, Journal of Applied Mechanics30(3): 384-390.


24. Shariyat M., Moradi M., Samaee S., 2012, Nonlinear finite element eccentric low-velocity impact analysis of rectangular laminated composite plates subjected to in-phase/anti-phase biaxial preloads, Journal of Solid Mechanics 4: 177-194.


25. Talebi S., Sadighi M., Aghdam M.M., 2019, Numerical and experimental analysis of the closed-cell aluminium foam under low velocity impact using computerized tomography technique, Acta Mechanica Sinica 35(1): 144-155.


26. Wang J., Hu X., Yuan K., Meng., Li P., 2019, Impact resistance prediction of superalloy honeycomb using modified Johnson–Cook constitutive model and fracture criterion, International Journal of Impact Engineering131: 66-77.