Static an‎d dynamic analysis of the transverse impact resistance of an adhesive joint structure reinforced with nature-inspired aluminum energy-absorbing composite

10/19/2026 12:00:00 AM

With the increase in the number of vehicles an‎d the tightening of environmental stan‎dards, increasing attention has been focused on improving crash safety an‎d reducing vehicle weight in the automotive industry. Furthermore, with population growth an‎d the expansion of the transportation sector, the rise in road accidents has led to extensive human, economic, an‎d social damages. To address this problem, recent innovations in the field of energy absorbers, particularly bio-inspired structures, have received significant attention from researchers due to their high crash safety an‎d desirable weight efficiency. In this thesis, an Aluminum/Composite Hybrid Adhesive joint structure, AHC, inspired by the crab claw, is introduced. This design involves combining aluminum geometry with CFRP components attached inside an‎d outside the geometry using structural adhesive. The impact performance of the AHC was investigated experimentally an‎d numerically under quasi-static an‎d dynamic transverse loading. A numerical model was created in LS_DYNA finite element software. Here, the objective of the numerical simulation is to design the structure such that desirable energy absorption behavior is achieved prior to failure in the joint an‎d without non-uniform buckling of the structure. Energy absorption indicators, including energy absorption, specific energy absorption, peak crushing force, mean crushing force, an‎d crushing force efficiency, were eva‎luated across 96 design samples for quasi-static loading an‎d 96 samples for dynamic loading. The results of this thesis demonstrate the effectiveness of the bio-inspired geometry an‎d the use of adhesive in metal/composite hybrid structures, highlighting the high potential of this approach for application in advanced automotive crash management systems.

جاذب انرژي , جذب انرژي , كامپوزيت

composite , energy absorber , energy absorption

Amin Feyz Bashipour

hamed saeidi googarchin