Failure Behaviour of Sandwich Beam Subjected to Projectile Impact

Abstract:

Aerodynamic gun impact test is carried out to investigate sandwich beam with metallic skin and Nomex honeycomb core damage mechanism and failure behaviour. Details of the deformation and damage progression within the sandwich beam are observed in particular. The comparisons between the two kinds of specimen with different thickness skins clearly show that the difference in the impact energy consumed in global bending deformation and the localized indentation. Theoretical elastic bending stiffness of the sandwich beam with thicker skins is approximately 2.26 times greater than that of sandwich beam with thinner skins.

• Periodical: Advanced Materials Research (Volumes 183-185)
• Pages: 2143-2147
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.183-185.2143
• Online since: January 2011
• Authors: Li Qing Meng, Shi Zhe Chen, Yan Wu, Xue Feng Shu
• Keywords: Failure Behaviour, Honeycomb Core, Impact, Metallic Skin, Sandwich Beam

References

[1] M. Meo, A.J. Morris. Numerical simulations of low-velocity impact on an aircraft sandwich panel[J], Composite Structure(2003) pp.353-360.

DOI: 10.1016/j.compstruct.2003.09.035

[2] M. Meo, A.J. Morris, R. Vignjevic, G. Marengo. Numerical simulations of low-velocity impact on an aircraft sandwich panel, Composite Structures 62 (2003) p.353–360.

DOI: 10.1016/j.compstruct.2003.09.035

[3] Michelle S. Hoo Fatt, Kyong S. Park. Dynamic models for low-velocity impact damage of composite sandwich panels – Part B: Dmage initiation, Composite Structures 52(2001) pp.353-364.

DOI: 10.1016/s0263-8223(01)00045-9

[4] Xie Zonghong，Anthony J. Vizzini，Tang Qingru. ON RESIDUAL COMPRESSIVE STRENGTH PREDICTION OF COMPOSITE SANDWICH PANELS AFTER LOW-VELOCITY IMPACT DAMAGE，Acta Mechanica Solida Sinica, Vol. 19, No. 1, March, 2006, pp.9-17.

DOI: 10.1007/s10338-006-0602-z

[5] Michelle S. Hoo Fatt, Kyong S. Park, Dynamic models for low-velocity impact damage of composite sandwich panels - Part A: Deformation, Composite Structures 52 (2001), pp.335-351.

DOI: 10.1016/s0263-8223(01)00026-5

[6] Wu E, Jiang WS. Axial crush of metallic honeycomb. Int J Impact Eng 1997; 9(5–6), p.439–456.

[7] Zhao H, Gary G. Crushing behaviour of aluminium honeycombs under impact loading. Int J Impact Eng 1998; 21(10), p.827–836.

DOI: 10.1016/s0734-743x(98)00034-7

[8] Baker WE, Togami TC, Weydert JC. Static and dynamic properties of high-density metal. Int J Impact Eng 1998; 21(3), p.149–163.

DOI: 10.1016/s0734-743x(97)00040-7

[9] A.R. Othman, D.C. Barton, Failure initiation and propagation characteristics of honeycomb sandwich composites, Composite Structures 85 (2008), p.126–138.

DOI: 10.1016/j.compstruct.2007.10.034

[10] E.E. Gdoutos, I.M. Daniel , K. -A. Wang, Compression facing wrinkling of composite sandwich structures, Mechanics of Materials 35 (2003), p.511–522.

DOI: 10.1016/s0167-6636(02)00267-3

[11] Allen HG. Analysis and design of structural sandwich panels. Pergamon Press; (1969).