On the parallel solution of hydro-mechanical problems with fracture networks and contact conditions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F24%3A00587685" target="_blank" >RIV/68145535:_____/24:00587685 - isvavai.cz</a>
Alternative codes found
RIV/46747885:24220/24:00012291 RIV/61989100:27240/24:10256049
Result on the web
<a href="https://doi.org/10.1016/j.compstruc.2024.107339" target="_blank" >https://doi.org/10.1016/j.compstruc.2024.107339</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.compstruc.2024.107339" target="_blank" >10.1016/j.compstruc.2024.107339</a>
Alternative languages
Result language
angličtina
Original language name
On the parallel solution of hydro-mechanical problems with fracture networks and contact conditions
Original language description
The paper presents a numerical method for simulating flow and mechanics in fractured rock. The governing equations that couple the effects in the rock mass and in the fractures are obtained using the discrete fracturematrix approach. The fracture flow is driven by the cubic law, and the contact conditions prevent fractures from selfpenetration. A stable finite element discretization is proposed for the displacementpressureflux formulation. The resulting nonlinear algebraic system of equations and inequalities is decoupled using a robust iterative splitting into the linearized flow subproblem, and the quadratic programming problem for the mechanical part. The nonpenetration conditions are solved by means of dualization and an optimal quadratic programming algorithm. The capability of the numerical scheme is demonstrated on a benchmark problem for tunnel excavation with hundreds of fractures in 3D. The paper's novelty consists in a combination of three crucial ingredients: (i) application of discrete fracturematrix approach to poroelasticity, (ii) robust iterative splitting of resulting nonlinear algebraic system working for realworld 3D problems, and (iii) efficient solution of its mechanical quadratic programming part with a large number of fractures in mutual contact by means of own solvers implemented into an in-house software library.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Computers and Structures
ISSN
0045-7949
e-ISSN
1879-2243
Volume of the periodical
298
Issue of the periodical within the volume
July 2024
Country of publishing house
GB - UNITED KINGDOM
Number of pages
14
Pages from-to
107339
UT code for WoS article
001217402600001
EID of the result in the Scopus database
2-s2.0-85188518003