TY - JOUR
T1 - A Peridynamic-enhanced finite element method for Thermo–Hydro–Mechanical coupled problems in saturated porous media involving cracks
AU - Ni, Tao
AU - Fan, Xuanmei
AU - Zhang, Jin
AU - Zaccariotto, Mirco
AU - Galvanetto, Ugo
AU - Schrefler, Bernhard A.
N1 - Funding Information:
T. Ni, U. Galvanetto and M. Zaccariotto would like to acknowledge the support they received from University of Padua under the research project BIRD2020 NR.202824/20 .
Funding Information:
B.A. Schrefler gratefully acknowledges the support of the Technische Universität München - Institute for Advanced Study .
Funding Information:
This research is financially supported by the National Natural Science Foundation of China (Grant No. 42207226 ); National Science Fund for Distinguished Young Scholars of China (Grant No. 42125702 ); Tencent Foundation through the XPLORER PRIZE (Grant No. XPLORER-2022-1012 ); Natural Science Foundation of Sichuan Province, China (Grant Nos. 2023NSFSC0808 and 22NSFSC0029 ); State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Independent Research Project SKLGP2021Z026 .
Publisher Copyright:
© 2023 The Authors
PY - 2023/12/15
Y1 - 2023/12/15
N2 - In this paper, a peridynamic-enhanced finite element formulation is introduced for the numerical simulation of thermo–hydro–mechanical coupled problems in saturated porous media with cracks. The proposed approach combines the Finite Element (FE) method for governing heat conduction–advection and fluid flow in the fractured porous domain, and the Peridynamic (PD) method for describing solid phase deformation and capturing crack propagation. Firstly, the consolidation problem of a porous column is simulated by using the proposed approach. The m- and δ-convergence studies are carried out with the isothermal condition to determine suitable discretization parameters for the PD model. Subsequently, non-isothermal conditions are considered, and the accuracy and reliability of the proposed approach are validated by comparing the numerical solutions with those obtained from a FE-only model. Furthermore, several numerical examples focusing on scenarios involving cracks are solved and presented to further highlight the capabilities of the proposed approach in addressing heat conduction–advection problems in fractured saturated porous media, as well as hydraulic fracture propagation problems with considerations of thermo–hydro–mechanical coupled effects.
AB - In this paper, a peridynamic-enhanced finite element formulation is introduced for the numerical simulation of thermo–hydro–mechanical coupled problems in saturated porous media with cracks. The proposed approach combines the Finite Element (FE) method for governing heat conduction–advection and fluid flow in the fractured porous domain, and the Peridynamic (PD) method for describing solid phase deformation and capturing crack propagation. Firstly, the consolidation problem of a porous column is simulated by using the proposed approach. The m- and δ-convergence studies are carried out with the isothermal condition to determine suitable discretization parameters for the PD model. Subsequently, non-isothermal conditions are considered, and the accuracy and reliability of the proposed approach are validated by comparing the numerical solutions with those obtained from a FE-only model. Furthermore, several numerical examples focusing on scenarios involving cracks are solved and presented to further highlight the capabilities of the proposed approach in addressing heat conduction–advection problems in fractured saturated porous media, as well as hydraulic fracture propagation problems with considerations of thermo–hydro–mechanical coupled effects.
KW - Cracks
KW - Finite element model
KW - Peridynamics
KW - Saturated porous media
KW - Thermo–hydro–mechanical coupling
UR - http://www.scopus.com/inward/record.url?scp=85170656068&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85170656068&partnerID=8YFLogxK
U2 - 10.1016/j.cma.2023.116376
DO - 10.1016/j.cma.2023.116376
M3 - Article
AN - SCOPUS:85170656068
SN - 0045-7825
VL - 417
JO - Computer Methods in Applied Mechanics and Engineering
JF - Computer Methods in Applied Mechanics and Engineering
M1 - 116376
ER -