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Vol.25, No.3, 2025, pp. 445–451 |
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NOVEL CFRP CRASH BOXES WITH HIGH ABSORPTION GEOMETRY REINFORCED WITH NANO GRAPHENE OXIDE Mohammad Afzali1, Ali
Ghorbanpour Arani1*
1) Department of Solid Mechanics, Faculty of Mechanical Engineering, University of Kashan, Kashan, IRAN A. Ghorbanpour Arani https://orcid.org/0000-0001-5754-0786 , *email: aghorban@kashanu.ac.ir 2) Faculty of Engineering, Mahallat Institute of Higher Education, Mahallat, IRAN
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Abstract Due to the ever-increasing fuel cost, environmentally incompatible growth of Green House Gases (GHG) emissions, and evolving, progressively stringent environmental and safety regulations, the lightweight design of vehicle structures has attracted many researchers. The crash box is prepared with six layers of carbon fibre in 0-90, 45 orientation, with different nano graphene oxide (nGO) contents and two different fillets. The experimental procedure is completed, and the results show that geometry and nanostructure are measured as critical parameters, allowing us to understand the design weaknesses and reconsider or enhance the current concept. Also, the results find that the nGO has a significant impact on reinforcing the structures. Adding and reinforcing the carbon fibre plus epoxy with nGO, compared to the neat sample, improves the strength of the structure. Adding 0.1 % nGO to the epoxy fills the crystalline gaps and creates a great bonding structure with epoxy and carbon fibre. This property would cover the micro-cracks made during manufacture, cutting, or other machinery processes. Keywords: • novel CFRP crash boxes • nano graphene oxide (nGO) • energy absorption • buckling • epoxy |
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full article (897 kB)
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