Analysis of High Velocity Impact on Composite Structures

Abstract:

In the recent years a big focus is subjected to the response of structures subjected to out-of-plane loading such as blasts, impact, etc. not only to homogenous materials, but also to heterogeneous materials, such as composites. Such form of loading can cause considerable damage to the structure. In the case of layered composite materials the damage can have several forms, starting from damage in layers up to delamination and full damage of the construction. This paper describes the investigation of shockwave propagation in composite structures caused by impact loading. The composite consists of carbon fibers in a polymer matrix, in which the fibers are much stiffer then the matrix. Finite element simulations were carried out for a “bird” strike impact on a composite wing leading edge. Results show a good impact resistance and good damping abilities of shockwaves.

• Periodical: Applied Mechanics and Materials (Volume 617)
• Pages: 104-109
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.617.104
• Online since: August 2014
• Authors: Milan Žmindák*, Zoran Pelagić, Maroš Bvoc
• Keywords: Composite Material, Finite Element Method (FEM), Impact Mechanics, Wave Propagation

References

[1] T. Sakakibara, et. al., Simulation of ball impact on composite plate with PP30% LGF. 12th International LS-DYNA Users Conference, (2012).

[2] V. Kompiš, M. Vančo, V. Ferencey, Shock waves propagation in composite materials. Mechanical Engineering, 61 2 (2010).

[3] S. Abrate, Impact Engineering of Composite Structures. Udine, Springer, 2011, pp.180-186.

[4] Q.H. Quin, Q.S. Yang, Macro-Micro Theory on Multifield Coupling Behaviuor of Heterogenous Materials, Springer, (2008).

[5] W. Yu, T. Tang, Variational asymptotic method for unit cell homogenization of periodically heterogeneous materials. Int. J. of Solid and Structures. 44 11-12 (2007) 3738-3755.

DOI: 10.1016/j.ijsolstr.2006.10.020