Comparison of predictive capabilities of selected elasto-plastic and hypoplastic models for structured clays

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F09%3A00014314" target="_blank" >RIV/00216208:11310/09:00014314 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of predictive capabilities of selected elasto-plastic and hypoplastic models for structured clays

Popis výsledku v původním jazyce

Different approaches to constitutive modelling of natural structured clays are in the paper compared by means of experimental data on natural Pisa and Bothkennar clays. The models evaluated are ahypoplastic model for structured clays, its simple elasto-plastic equivalent that requires parameters with similar physical meaning, and advanced elasto-plastic models based on kinematic hardening approach. Hypoplasticity predicts non-linear stress-strain response in the pre-failure region and di?erent sti?nessin di?erent loading directions, it thus provides a clear qualitative advance with respect to the simple elasto-plastic model. It gives qualitatively similar predictions with the kine- matic hardening models. The structure degradation and the large-strainresponse are predicted similarly by both the hypoplastic and elasto-plastic models, which shows that the critical state soil mechanics theories can be treated successfully within the framework of the theory of hypoplasticity.

Název v anglickém jazyce

Comparison of predictive capabilities of selected elasto-plastic and hypoplastic models for structured clays

Popis výsledku anglicky

Different approaches to constitutive modelling of natural structured clays are in the paper compared by means of experimental data on natural Pisa and Bothkennar clays. The models evaluated are ahypoplastic model for structured clays, its simple elasto-plastic equivalent that requires parameters with similar physical meaning, and advanced elasto-plastic models based on kinematic hardening approach. Hypoplasticity predicts non-linear stress-strain response in the pre-failure region and di?erent sti?nessin di?erent loading directions, it thus provides a clear qualitative advance with respect to the simple elasto-plastic model. It gives qualitatively similar predictions with the kine- matic hardening models. The structure degradation and the large-strainresponse are predicted similarly by both the hypoplastic and elasto-plastic models, which shows that the critical state soil mechanics theories can be treated successfully within the framework of the theory of hypoplasticity.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Soils and Foundations

ISSN

0038-0806

e-ISSN

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Svazek periodika

49

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

JP - Japonsko

Počet stran výsledku

10

Strana od-do

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Kód UT WoS článku

000269336000007

EID výsledku v databázi Scopus

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