Optimization and variational principles for the shear strength reduction method
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F21%3A00548188" target="_blank" >RIV/68145535:_____/21:00548188 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27120/21:10248971
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/nag.3270" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/nag.3270</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/nag.3270" target="_blank" >10.1002/nag.3270</a>
Alternative languages
Result language
angličtina
Original language name
Optimization and variational principles for the shear strength reduction method
Original language description
In this paper, a modified shear strength reduction method (MSSR) and its optimization variant (OPT-MSSR) are suggested. The idea of MSSR is to approximate the standard shear strength reduction to be more stable and rigorous from the numerical point of view. The MSSR method consists of a simplified associated elasto-plastic model completed by the strength reduction depending on the dilatancy angle. Three Davis' modifications suggested by Tschuchnigg et al. (2015) are interpreted as special cases of MSSR and their factors of safety are compared. The OPT-MSSR method is derived from MSSR on the basis of rigid plastic assumption, similarly as in limit analysis. Using the variational approach, the duality between the static and kinematic principles of OPT-MSSR is shown. The numerical solution of OPT-MSRR is obtained by performing a regularization method in combination with the finite element method, mesh adaptivity and a damped Newton method. In-house codes (Matlab) are used for the implementation of this solution concept. Finally, two slope stability problems are considered, one of which follows from analysis of a real slope. The softwares packages Plaxis and Comsol Multiphysics are used for comparison of the results.
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
—
OECD FORD branch
10102 - Applied mathematics
Result continuities
Project
<a href="/en/project/GA19-11441S" target="_blank" >GA19-11441S: Efficient and reliable computational techniques for limit analysis and incremental methods in geotechnical stability</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal for Numerical and Analytical Methods in Geomechanics
ISSN
0363-9061
e-ISSN
1096-9853
Volume of the periodical
45
Issue of the periodical within the volume
16
Country of publishing house
US - UNITED STATES
Number of pages
20
Pages from-to
2388-2407
UT code for WoS article
000687027100001
EID of the result in the Scopus database
2-s2.0-85113158232