| Issue |
E3S Web Conf.
Volume 92, 2019
7th International Symposium on Deformation Characteristics of Geomaterials (IS-Glasgow 2019)
|
|
|---|---|---|
| Article Number | 16009 | |
| Number of page(s) | 6 | |
| Section | Numerical Modelling: THCM Coupling, Localisation, Boundary Value Problems | |
| DOI | https://doi.org/10.1051/e3sconf/20199216009 | |
| Published online | 25 June 2019 | |
Macro-element modelling of suction-embedded plate anchors for floating offshore structures
Department of Civil Engineering, University of Bristol, Queens Building, BS8 1TR, Bristol, UK
* Corresponding author: a.peccindasilva@bristol.ac.uk
This work presents a new macro-element model to predict the behaviour of Suction Embedded Plate Anchors (SEPLAs) for floating offshore structures during keying and loading stages. Differently from previously published models for anchors, this new model is characterised by (i) a non-associated plastic potential with the aim of improving the prediction of anchor trajectory for the whole displacement domain and for a large range of padeye offsets; and (ii) by a strain-hardening rule enabling to predict the force and displacement mobilisation from the early stages of the keying process. The model was calibrated against LDFE analyses and compared with a broad set of LDFE and centrifuge tests results. The model proves capable of reproducing anchor rotation and displacement with good accuracy for a wide range of padeye offsets and distinct studies from the literature.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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