Burman, E;
Fernández, MA;
Frei, S;
Gerosa, FM;
(2022)
A mechanically consistent model for fluid–structure interactions with contact including seepage.
Computer Methods in Applied Mechanics and Engineering
, 392
, Article 114637. 10.1016/j.cma.2022.114637.
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Abstract
We present a new approach for the mechanically consistent modelling and simulation of fluid–structure interactions (FSI) with contact. The fundamental idea consists of combining a relaxation of the contact conditions with the modelling of seepage through a porous layer of co-dimension one during contact. For the latter, a Darcy model is considered in a thin porous layer attached to a solid boundary in the limit of infinitesimal thickness. The resulting computational model is both mechanically consistent and simple to implement. The FSI coupling and the contact conditions are imposed weakly by means of a unified Nitsche approach. We analyse the approach in detailed numerical studies with both thick- and thin-walled solids, within a fully Eulerian and an immersed approach and using fitted and unfitted finite element discretisations.
| Type: | Article |
|---|---|
| Title: | A mechanically consistent model for fluid–structure interactions with contact including seepage |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.cma.2022.114637 |
| Publisher version: | https://doi.org/10.1016/j.cma.2022.114637 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Mathematics UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10146562 |
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