Distribution of Time Scales Induces Slow Dynamics and Elastic Hysteresis in Sandstones: A Model of Non-equilibrium Strain

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F25%3A00639717" target="_blank" >RIV/61388998:_____/25:00639717 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/25:00390896
Result on the web
<a href="https://link.springer.com/article/10.1007/s00603-025-04668-5" target="_blank" >https://link.springer.com/article/10.1007/s00603-025-04668-5</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00603-025-04668-5" target="_blank" >10.1007/s00603-025-04668-5</a>

Result language
angličtina
Original language name
Distribution of Time Scales Induces Slow Dynamics and Elastic Hysteresis in Sandstones: A Model of Non-equilibrium Strain
Original language description
Elasticity in consolidated granular materials exhibits non-classical nonlinearity and slow dynamics. These effects are typically analyzed through separate experimental methods and theoretical models. Our research aims to unify these descriptions by introducing a model based on non-equilibrium strain, incorporating a wide range of relaxation times to account for both fast nonlinear effects and slow conditioning and relaxation of elastic properties. Utilizing observations from dynamic acoustoelastic testing of sandstone, we propose a time-delay model that accurately reflects the observed experimental behaviors, including log-time relaxation and hysteresis. Our findings indicate that the slow and fast dynamics in sandstone are intrinsically coupled, and the model provides a comprehensive framework for understanding these complex interactions. This model, which is validated by fitting experimental data including conditioning loops and relaxation curves, offers a tool for predicting the elastic behavior under various loading conditions.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering

Project
<a href="/en/project/EH23_020%2F0008501" target="_blank" >EH23_020/0008501: Metamaterials for thermally stressed machine components</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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