Dynamic response of aluminum honeycombs to in-plane impact loadings

Koichi Tanaka; Masahiro Nishida; Toshiharu Mochida; Akiko Kousaka

doi:10.1117/12.424260

17 April 2001 Dynamic response of aluminum honeycombs to in-plane impact loadings

Koichi Tanaka, Masahiro Nishida, Toshiharu Mochida, Akiko Kousaka

Proceedings Volume 4183, 24th International Congress on High-Speed Photography and Photonics; (2001) https://doi.org/10.1117/12.424260
Event: 24th International Congress on High-Speed Photography and Photonics, 2000, Sendai, Japan

Abstract

Deformation processes of aluminum honeycombs with hexagonal cells subjected to the in-plane impact of a rigid impactor are investigated experimentally and numerically in relation to the dynamical behavior of cellular materials and complex materials under high-speed loadings. Strain waves are measured using strain gauges glued on the cell walls and reaction forces are measured using a load cell at the contact surface between the honeycomb and a fixed wall. A high-speed camera is used to visualize the deformation process. Numerical simulations are partly made for the same configuration as the experiment. Very distinctive deformation mechanisms of individual cells and propagation mechanisms of strain waves in the honeycomb are found out. Also, characteristic two-dimensional behavior is revealed in spite of one-dimensional and uni-directional impact loading.

Citation Download Citation

Koichi Tanaka, Masahiro Nishida, Toshiharu Mochida, and Akiko Kousaka "Dynamic response of aluminum honeycombs to in-plane impact loadings", Proc. SPIE 4183, 24th International Congress on High-Speed Photography and Photonics, (17 April 2001); https://doi.org/10.1117/12.424260

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