Experimental investigation on Malaysian kaolin under monotonic and cyclic loading: inspection of undrained Miner's rule and drained cyclic preloading

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F22%3A10454727" target="_blank" >RIV/00216208:11310/22:10454727 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=WQci0fuFqU" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=WQci0fuFqU</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11440-022-01643-0" target="_blank" >10.1007/s11440-022-01643-0</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental investigation on Malaysian kaolin under monotonic and cyclic loading: inspection of undrained Miner's rule and drained cyclic preloading

Popis výsledku v původním jazyce

The results of an experimental investigation on Malaysian kaolin under monotonic and cyclic loading are presented. In the tests, a wide range of initial conditions was varied in order to investigate their influence on the mechanical behavior of the kaolin. The response under monotonic loading was analyzed by means of undrained monotonic triaxial tests with different initial mean effective pressures and overconsolidation ratios. The experimental plan under cyclic loading includes an oedometer test with multiple unloading-reloading cycles and twenty-one undrained cyclic triaxial tests with either isotropic or anisotropic consolidation. In the latter tests, the influence of the initial stress ratio, deviatoric stress amplitude, drained cyclic preloading and sequence of packages of cycles with different deviatoric stress amplitudes has been investigated. The experimental results suggest that the variation of the aforementioned test conditions leads to remarkable changes in the accumulation rates of pore water pressure and strains. In addition, it was found that the so-called Miner&apos;s rule (independence of accumulated strains on loading sequence) is not valid under undrained cyclic conditions. A modified Stewart&apos;s approach was proposed for the estimation of the accumulated pore water pressure and strains on undrained cyclic tests with packages of cycles with different deviatoric stress amplitudes, demonstrating that constitutive models developed using single-magnitude loading packages can be used in simulations of problems with variable cyclic loading magnitude.

Název v anglickém jazyce

Experimental investigation on Malaysian kaolin under monotonic and cyclic loading: inspection of undrained Miner's rule and drained cyclic preloading

Popis výsledku anglicky

The results of an experimental investigation on Malaysian kaolin under monotonic and cyclic loading are presented. In the tests, a wide range of initial conditions was varied in order to investigate their influence on the mechanical behavior of the kaolin. The response under monotonic loading was analyzed by means of undrained monotonic triaxial tests with different initial mean effective pressures and overconsolidation ratios. The experimental plan under cyclic loading includes an oedometer test with multiple unloading-reloading cycles and twenty-one undrained cyclic triaxial tests with either isotropic or anisotropic consolidation. In the latter tests, the influence of the initial stress ratio, deviatoric stress amplitude, drained cyclic preloading and sequence of packages of cycles with different deviatoric stress amplitudes has been investigated. The experimental results suggest that the variation of the aforementioned test conditions leads to remarkable changes in the accumulation rates of pore water pressure and strains. In addition, it was found that the so-called Miner&apos;s rule (independence of accumulated strains on loading sequence) is not valid under undrained cyclic conditions. A modified Stewart&apos;s approach was proposed for the estimation of the accumulated pore water pressure and strains on undrained cyclic tests with packages of cycles with different deviatoric stress amplitudes, demonstrating that constitutive models developed using single-magnitude loading packages can be used in simulations of problems with variable cyclic loading magnitude.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

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)

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Acta Geotechnica

ISSN

1861-1125

e-ISSN

1861-1133

Svazek periodika

17

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

23

Strana od-do

4953-4975

Kód UT WoS článku

000847630900002

EID výsledku v databázi Scopus

2-s2.0-85137101349