Аңдатпа
Multiscale modelling enabled a systematic investigation of titanium alloy (Ti‐6Al‐4V) single‐lap adhesive joints using Araldite 2015 epoxy reinforced with multi‐walled carbon nanotubes (MWCNTs) and single‐walled boron nitride nanotubes (SWBNTs). A hybrid approach integrates Digi‐mat's nanoscale mean‐field homogenization for predicting effective nanocomposite properties with Abaqus‐based macroscale joint simulations under mechanical loading. Six adhesive configurations are analyzed, neat epoxy, multi‐walled carbon nanotubes‐reinforced (1 wt.‐%–3 wt.‐%), and single‐walled boron nitride nanotubes‐reinforced (1 wt.‐% and 3 wt.‐%). Results demonstrate progressive longitudinal modulus enhancements of 8.69 %, 16.22 %, and 23.89 % for 1 wt.‐%–3 wt.‐% multi‐walled carbon nanotubes, outperforming single‐walled boron nitride nanotubes (8.50 % at 1 wt.‐%, 23.53 % at 3 wt.‐%). The 3 wt.‐% multi‐walled carbon nanotubes adhesive achieved optimal performance, increasing the peel stress concentration by 10% and shear stress localization by 1.2 %, compared to neat epoxy, attributed to improved load transfer and crack resistance. Stress pattern analysis shows that the multi‐walled carbon nanotubes more effectively reduce edge stress singularities, with 3 wt.‐% balancing viscosity limitations and mechanical gains. Single‐walled boron nitride nanotubes exhibit reduced efficiency despite quality modulus gains at 3 wt.‐%, highlighting multi‐walled carbon nanotubes superior reinforcement capacity. These outcomes overview the practicality of 3 wt.‐% multi‐walled carbon nanotubes‐epoxy adhesives for aerospace and automotive industries, offer higher peel strength than neat epoxy while keeping up lightweight characteristics.