An evaluation of methods for numerical integration of constitutive relations of elasto-plastic soil models
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Metapodaci
Prikaz svih podataka o dokumentuApstrakt
U radu je dat pregled metoda za numeričku integraciju relacija elasto-plastičnih
konstitutivnih modela za tlo. Prikazan je inkrementalno-iterativan postupak proračuna
metodom konačnih elemenata, sa osvrtom na značajan uticaj algoritama za integraciju
konstitutivnih relacija na tačnost određivanja naponsko-deformacijskih veličina definisanih
modelom. Dat je pregled metoda integracije sa opštom podelom na implicitne i eksplicitne
metode. Detaljnije je prikazan algoritam za tri odabrane metode koje se mogu primeniti na
elasto-plastične modele za tlo sa ocenom ispunjenosti zahteva pouzdanosti, tačnosti i
efikasnosti: metodu vodećeg parametra, metodu povratnog preslikavanja i “substepping“
metodu.
A brief overview of methods for numerical integration of stress-strain relations of elastoplastic
constitutive models for soil is presented. Firstly, incremental-iterative procedure for
finite element method is described with emphasis on the importance of algorithms for
numerical integration of constitutive relations. A review of explicit and implicit methods is
given. A more detailed assessment of fulfillment of the requirements of reliability, accuracy
and efficiency is given for three methods: governing parameter method, return mapping
algorithm and substepping algorithm.
Ključne reči:
soil constitutive modeling / governing parameter method / return mapping algorithm / substepping algorithmIzvor:
Proceedings International Scientific Conference Earthquake Engineering and Geotechnical aspects of Civil Engineering, 2021, 548-557Finansiranje / projekti:
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200092 (Univerzitet u Beogradu, Građevinski fakultet) (RS-MESTD-inst-2020-200092)
Institucija/grupa
GraFarTY - CONF AU - Obradović, Nikola AU - Vukićević, Mirjana AU - Jocković, Sanja PY - 2021 UR - https://grafar.grf.bg.ac.rs/handle/123456789/2439 AB - U radu je dat pregled metoda za numeričku integraciju relacija elasto-plastičnih konstitutivnih modela za tlo. Prikazan je inkrementalno-iterativan postupak proračuna metodom konačnih elemenata, sa osvrtom na značajan uticaj algoritama za integraciju konstitutivnih relacija na tačnost određivanja naponsko-deformacijskih veličina definisanih modelom. Dat je pregled metoda integracije sa opštom podelom na implicitne i eksplicitne metode. Detaljnije je prikazan algoritam za tri odabrane metode koje se mogu primeniti na elasto-plastične modele za tlo sa ocenom ispunjenosti zahteva pouzdanosti, tačnosti i efikasnosti: metodu vodećeg parametra, metodu povratnog preslikavanja i “substepping“ metodu. AB - A brief overview of methods for numerical integration of stress-strain relations of elastoplastic constitutive models for soil is presented. Firstly, incremental-iterative procedure for finite element method is described with emphasis on the importance of algorithms for numerical integration of constitutive relations. A review of explicit and implicit methods is given. A more detailed assessment of fulfillment of the requirements of reliability, accuracy and efficiency is given for three methods: governing parameter method, return mapping algorithm and substepping algorithm. C3 - Proceedings International Scientific Conference Earthquake Engineering and Geotechnical aspects of Civil Engineering T1 - An evaluation of methods for numerical integration of constitutive relations of elasto-plastic soil models EP - 557 SP - 548 UR - https://hdl.handle.net/21.15107/rcub_grafar_2439 ER -
@conference{ author = "Obradović, Nikola and Vukićević, Mirjana and Jocković, Sanja", year = "2021", abstract = "U radu je dat pregled metoda za numeričku integraciju relacija elasto-plastičnih konstitutivnih modela za tlo. Prikazan je inkrementalno-iterativan postupak proračuna metodom konačnih elemenata, sa osvrtom na značajan uticaj algoritama za integraciju konstitutivnih relacija na tačnost određivanja naponsko-deformacijskih veličina definisanih modelom. Dat je pregled metoda integracije sa opštom podelom na implicitne i eksplicitne metode. Detaljnije je prikazan algoritam za tri odabrane metode koje se mogu primeniti na elasto-plastične modele za tlo sa ocenom ispunjenosti zahteva pouzdanosti, tačnosti i efikasnosti: metodu vodećeg parametra, metodu povratnog preslikavanja i “substepping“ metodu., A brief overview of methods for numerical integration of stress-strain relations of elastoplastic constitutive models for soil is presented. Firstly, incremental-iterative procedure for finite element method is described with emphasis on the importance of algorithms for numerical integration of constitutive relations. A review of explicit and implicit methods is given. A more detailed assessment of fulfillment of the requirements of reliability, accuracy and efficiency is given for three methods: governing parameter method, return mapping algorithm and substepping algorithm.", journal = "Proceedings International Scientific Conference Earthquake Engineering and Geotechnical aspects of Civil Engineering", title = "An evaluation of methods for numerical integration of constitutive relations of elasto-plastic soil models", pages = "557-548", url = "https://hdl.handle.net/21.15107/rcub_grafar_2439" }
Obradović, N., Vukićević, M.,& Jocković, S.. (2021). An evaluation of methods for numerical integration of constitutive relations of elasto-plastic soil models. in Proceedings International Scientific Conference Earthquake Engineering and Geotechnical aspects of Civil Engineering, 548-557. https://hdl.handle.net/21.15107/rcub_grafar_2439
Obradović N, Vukićević M, Jocković S. An evaluation of methods for numerical integration of constitutive relations of elasto-plastic soil models. in Proceedings International Scientific Conference Earthquake Engineering and Geotechnical aspects of Civil Engineering. 2021;:548-557. https://hdl.handle.net/21.15107/rcub_grafar_2439 .
Obradović, Nikola, Vukićević, Mirjana, Jocković, Sanja, "An evaluation of methods for numerical integration of constitutive relations of elasto-plastic soil models" in Proceedings International Scientific Conference Earthquake Engineering and Geotechnical aspects of Civil Engineering (2021):548-557, https://hdl.handle.net/21.15107/rcub_grafar_2439 .