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- Article name
- Multiscale modeling of deformation and failure of composite lattice shell elements under low-velocity impact
- Authors
- BABICHEV A. A., , 185@bk.ru, Central Institute of Special Machinery, Khotkovo, Moscow region, Russia
SHANYGIN A. N., , alexander.shanygin@tsagi.ru, Central Aerohydrodynamics Institute named after professor N. E. Zhukovsky, Zhukovskii, Moscow region, Russia
SAPOZHNIKOV S. B., , sapozhnikovsb@susu.ru, South Ural State University, Chelyabinsk, Russia
PON'KIN A. V., , ponkinav@susu.ru, South Ural State University, Chelyabinsk, Russia
LEKOMTSEV S. V., , lekomtsev@icmm.ru, Perm Federal Research Center of the Ural Branch of the RAS, Perm, Russia
- Keywords
- anisogrid shell / local impact / carbon fiber reinforced plastic / organoplastic / multiscale modeling / damage protection
- Year
- 2026 Issue 3 Pages 23 - 34
- Code EDN
- MGTYJF
- Code DOI
- 10.52190/2073-2562_2026_3_23
- Abstract
- The results of the impact strength assessment of a unidirectional ribbed frame of a composite anisogrid fuselage shell depending on the thickness of protective tabs on the ribs are presented. The studies were carried out based on a new method that combines finite and analytical shell models ranging from global to meso-level scales. A comparative analysis of the calculation results with experimental data was conducted for the anisogrid fuselage shell of a prospective medium-range aircraft with protective elements. It is shown that by using special protective tabs, it is possible to ensure the impact strength of the composite ribbed frame without significant weight penalties for an impact range of 20 to 50 J.
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