|
|
Publications
Zavvar, E., Henneberg, J. and Guedes Soares, C. (2023), Stress concentration factors in FRP-reinforced tubular DKT joints under axial loads, Marine Structures, Vol. 90, 103429
The stress concentration factors (SCFs) in uniplanar fibre reinforced polymer (FRP) DKT-joints are calculated under five axial loading conditions to determine the maximum SCFs. To this end, 108 finite element (FE) models of reinforced DKT-joints with different FRPs and geometrical parameters are analysed. Available experimental data and formulas are used to validate the finite element models. The validated finite element models are utilized to investigate the effects of the FRP parameters along with different geometrical parameters on the stress concentration factors in uniplanar DKT-joints. The simulations show a reduction of the maximum SCF by around 40% compared to unreinforced DKT-joints. The reduction effect increases significantly with increasing the FRP thickness and the number of layers. Despite the notable efficacy of the FRP sheets on the drop of the SCFs in the X-connections, there is not any study or equation on the X-joints with FRP. Therefore, a precise equation is proposed for quantifying the SCFs in X-connections with FRP and is checked against the UK DoE acceptance standard.
If you did not manage to obtain a copy of this paper: Request a copy of this article
For information about all CENTEC publications you can download: Download the Complete List of CENTEC Publications
|