Influence of geometrical parameters on the strength of Hybrid CFRP-aluminium tubular adhesive joints
N. Lavalette (TU Delft - Structural Integrity & Composites)
Otto Otto (TU Delft - Structural Integrity & Composites)
D. Zarouchas (TU Delft - Structural Integrity & Composites)
R Rinze (TU Delft - Structural Integrity & Composites)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
Tubular adhesive joints, used in truss structures to join pultruded carbon fibre-reinforced polymer members to aluminium nodes, are modelled with varying dimensions. The numerical model uses a Cohesive Zone Modelling formulation with a trapezoidal traction-separation law for the adhesive layer, and experimental tests are carried to validate it. The results showed that the joint strength increases significantly with the bonding area, with a limit on the overlap length above which it stops increasing. This upper limit is affected by the thickness and tapering angle of the adherends, due to their influence on the shear stress distribution along the overlap. On the other hand, the adhesive thickness has only a marginal influence on the joint strength.
help_outline