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2014 (Vol. 7, Issue: 3)
Article Information:

Size Effect and Material Property Effect of the Impactor on the Damage Modes of the Single-Layer Kiewitt-8 Reticulated Dome

Li Lin, Feng Fan, Xu Dong Zhi and Hong Feng Yin
Corresponding Author:  Li Lin 

Key words:  Damage mode, deformable impactor, impact, rigid impactor, single-layer kiewitt-8 reticulated dome, size effect,
Vol. 7 , (3): 515-520
Submitted Accepted Published
February 07, 2013 March 03, 2013 January 20, 2014
Abstract:

The dynamic response of large space structures under accidental impact has been the subject of intense research since the occurrence of the 9/11 incident. In the present study, using the 3D ANSYS/LS-DYNA, size effect and material property effect of the impactor on the damage modes of the single-layer kiewitt-8 reticulated dome were investigated respectively, where the impactor was the cylinder and the impact direction was vertical. Firstly, Analytical results with the rigid impactor indicated that the impactor size can change the damage mode of the reticulated dome. It was found that the probability happening to the global collapse has an obvious rise with the size increase of the impactor. Furtherly, the deformable impactor was considered to figure out the difference with the rigid impactor, the comparisons indicated that the deformable impactor, who has the same mass and same striking velocity with the rigid impactor, can contribute to the occurrence of the global collapse at a certain initial striking condition.
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  Cite this Reference:
Li Lin, Feng Fan, Xu Dong Zhi and Hong Feng Yin, 2014. Size Effect and Material Property Effect of the Impactor on the Damage Modes of the Single-Layer Kiewitt-8 Reticulated Dome.  Research Journal of Applied Sciences, Engineering and Technology, 7(3): 515-520.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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