Gradient Stiffness Modelling of Thin Adhesive Bonds
Artykuł w czasopiśmie
MNiSW
70
Lista 2024
| Status: | |
| Autorzy: | Anasiewicz Kamil |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2026 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 3 |
| Wolumen/Tom: | 26 |
| Strony: | 258 - 270 |
| Impact Factor: | 1,5 |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Witryna wydawcy |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 19 czerwca 2026 |
| Abstrakty: | angielski |
| The objective of this study was to evaluate the influence of through-thickness variability of Young’s modulus on the numerical modelling of adhesive joint behaviour. The study combined experimental characterization with finite element simulations. Nanoindentation measurements were used to determine the distribution of Young’s modulus across adhesive layers with thicknesses of 0.05 mm and 0.1 mm. Based on these measurements, two-dimensional finite element models of double-overlap joints were developed in Abaqus. Two modelling approaches were analysed: a conventional homogeneous model with constant material properties and a heterogeneous multi-zone model in which Young’s modulus varies across the adhesive thickness and is implemented using the USDFLD user subroutine. The results indicate that incorporating experimentally determined stiffness gradients significantly alters the predicted stress field, particularly in regions near the overlap ends where failure initiation is expected. The heterogeneous model provides improved agreement between numerical predictions and experimentally determined failure stresses. These findings demonstrate that accounting for stiffness heterogeneity improves the accuracy of numerical modelling of ultra-thin adhesive joints. |
