From the perspective of bionics, this paper proposes a new self-similar hierarchical quasi-honeycomb (SHQ) structure. It specifically analyzes the hierarchy and gradient distribution’s influence on the impact characteristics under different impact loads by using a combination of numerical simulation, theoretical analysis and experimental validation. Research found that the hierarchical design can improve the out-of-plane impact performance of the honeycomb, and a reasonable out-of-plane gradient distribution can greatly reduce the peak crushing force (PCF) of the out-of-plane impact. In addition, based on the simplified super folding element theory, an out-of-plane impact theoretical model of the SHQ was established, which can better predict the mean crushing force (MCF) and energy absorption (EA).
Research on out-of-plane impact characteristics of self-similar gradient hierarchical quasi-honeycomb structure
International Journal of Crashworthiness ; 28 , 5 ; 676-692
03.09.2023
17 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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