Relaxation of Viscoelastic Properties of Sandstones: Hysteresis and Anisotropy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F24%3A00587961" target="_blank" >RIV/61388998:_____/24:00587961 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/24:00382262

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s00603-024-03914-6" target="_blank" >https://link.springer.com/article/10.1007/s00603-024-03914-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00603-024-03914-6" target="_blank" >10.1007/s00603-024-03914-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Relaxation of Viscoelastic Properties of Sandstones: Hysteresis and Anisotropy

Popis výsledku v původním jazyce

Elastic nonlinearity in sandstones is given by the combination of slow and fast effects, leading to hysteresis and relaxation of the viscoelastic properties after the sample is perturbed (conditioning). While a lot of experimental evidences of slow dynamics are available, quantification of nonclassical nonlinearity is still difficult: nonlinear indicators must be introduced which are independent of both experimental configuration and on conditioning strain amplitude, which is often difficult to quantify in an accurate way. In this contribution, we introduce and analyze some possible quantities describing nonlinear viscoelasticity in sandstones, derived from a non-equilibrium strain model. We will show that they identify real material properties, in the sense that they are not dependent on experimental details (such as experiment duration, conditioning pro-tocol, frequency, ...) and can be measured easily with good repeatability.

Název v anglickém jazyce

Relaxation of Viscoelastic Properties of Sandstones: Hysteresis and Anisotropy

Popis výsledku anglicky

Elastic nonlinearity in sandstones is given by the combination of slow and fast effects, leading to hysteresis and relaxation of the viscoelastic properties after the sample is perturbed (conditioning). While a lot of experimental evidences of slow dynamics are available, quantification of nonclassical nonlinearity is still difficult: nonlinear indicators must be introduced which are independent of both experimental configuration and on conditioning strain amplitude, which is often difficult to quantify in an accurate way. In this contribution, we introduce and analyze some possible quantities describing nonlinear viscoelasticity in sandstones, derived from a non-equilibrium strain model. We will show that they identify real material properties, in the sense that they are not dependent on experimental details (such as experiment duration, conditioning pro-tocol, frequency, ...) and can be measured easily with good repeatability.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/TM04000065" target="_blank" >TM04000065: Slitiny s vysokou entropií připravené metodami aditivní výroby pro využití v jaderné energetice</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Rock Mechanics and Rock Engineering

ISSN

0723-2632

e-ISSN

1434-453X

Svazek periodika

57

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

AT - Rakouská republika

Počet stran výsledku

14

Strana od-do

6701-6714

Kód UT WoS článku

001216996300001

EID výsledku v databázi Scopus

2-s2.0-85191850915