论文信息 - Impact enhancement of the out‐of‐plane behaviour of honeycombs

Impact enhancement of the out‐of‐plane behaviour of honeycombs

Abstract In this study, out‐of‐plane compressive experiments were carried out on an aluminium honeycomb core both dynamically and quasi‐statically. An obvious enhancement of about 25% was found for the dynamic loading experiments compared with the quasi‐static ones. Further investigation using the finite element method showed a good agreement with the experimental results and indicated differences in deformation at different loading rates. Finally, based on the simulation results, the explanation of the impact enhancement based on the inertia protected mechanism is validated.

[1] Stephen R Reid,et al. Dynamic crushing of honeycombs and features of shock fronts , 2009 .

[2] O. Hopperstad,et al. Crashworthiness of aluminium extrusions: validation of numerical simulation, effect of mass ratio and impact velocity , 1999 .

[3] Stephen R Reid,et al. Inertia effects in uniaxial dynamic compression of a closed cell aluminium alloy foam , 2002 .

[4] Han Zhao,et al. CRUSHING BEHAVIOUR OF ALUMINIUM HONEYCOMBS UNDER IMPACT LOADING , 1998 .

[5] N. Fleck,et al. High strain rate compressive behaviour of aluminium alloy foams , 2000 .

[6] Werner Goldsmith,et al. Axial perforation of aluminum honeycombs by projectiles , 1995 .

[7] Stephen R Reid,et al. Inertia-sensitive impact energy-absorbing structures part I: Effects of inertia and elasticity , 1995 .

[8] H. Kolsky. An Investigation of the Mechanical Properties of Materials at very High Rates of Loading , 1949 .

[9] Han Zhao,et al. An experimental study on the behaviour under impact loading of metallic cellular materials , 2005 .

[10] Yaodong Liu,et al. A numerical study on the rate sensitivity of cellular metals , 2009 .

[11] W. E. Baker,et al. Static and dynamic properties of high-density metal honeycombs , 1998 .

[12] C. Calladine,et al. Strain-rate and inertia effects in the collapse of two types of energy-absorbing structure , 1984 .

[13] Enboa Wu,et al. AXIAL CRUSH OF METALLIC HONEYCOMBS , 1997 .