A coupled thermo-hydro-mechanical finite element formulation of one-dimensional beam elements for three-dimensional analysis. (December 2018)

• Record Type: Journal Article
• Authors: Gawecka, Klementyna A.; Potts, David M.; Cui, Wenjie; Taborda, David M.G.; Zdravković, Lidija
• Is Part Of: Computers and geotechnics. Volume 104(2018)
• Page Start: 29
• Page End: 41
• Publication Date: 2018-12
• Subjects: Finite element method -- Beam element -- THM coupling -- Porous medium; Engineering geology -- Data processing -- Periodicals; Soil mechanics -- Data processing -- Periodicals; Rock mechanics -- Data processing -- Periodicals; 624.1510285
• DOI: 10.1016/j.compgeo.2018.08.005
• Languages: English
• ISSNs: 0266-352X

Abstract

Abstract: Finite element (FE) analysis in geotechnical engineering often involves entities which can be represented as one-dimensional elements in three-dimensions (e.g. structural components, drains, heat exchanger pipes). Although structural components require an FE formulation accounting only for their mechanical behaviour, for the latter two examples, a coupled approach is necessary. This paper presents the first complete coupled thermo-hydro-mechanical FE formulation for one-dimensional beam elements for three-dimensional analysis. The possibility of deactivating each of the systems enables simulation of both coupled and uncoupled behaviour, and hence a range of engineering problems. The performance of these elements is demonstrated through various numerical simulations.