The role of fast and slow dynamics in nonlinear resonant ultrasound spectroscopy of consolidated granular materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F25%3A00639718" target="_blank" >RIV/61388998:_____/25:00639718 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/25:00390906

Výsledek na webu

<a href="https://www.nature.com/articles/s41598-025-11854-6" target="_blank" >https://www.nature.com/articles/s41598-025-11854-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-025-11854-6" target="_blank" >10.1038/s41598-025-11854-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The role of fast and slow dynamics in nonlinear resonant ultrasound spectroscopy of consolidated granular materials

Popis výsledku v původním jazyce

Elastic nonlinearity observed in consolidated granular media can be attributed to the combination of slow and fast effects, which give rise to hysteresis and relaxation of both modulus and damping after the sample is perturbed. A consequence is a high level of complexity in the measurements of the sample linear and nonlinear elastic parameters. The results of experiments are dependent on the experimental protocol that is adopted to measure the relevant quantities and it is hard to quantify parameters with accuracy and repeatability. Here we focus on examining Nonlinear Resonant Ultrasound Spectroscopy, showing experimentally the role of slow dynamics in the process and quantifying/discussing its influence on the quantification of nonlinearity. We also propose a model to describe the process, which shows that different contributions to nonlinearity (e.g., classical and hysteretic) could be due to physical features (defects) relaxing with different relaxation times.

Název v anglickém jazyce

The role of fast and slow dynamics in nonlinear resonant ultrasound spectroscopy of consolidated granular materials

Popis výsledku anglicky

Elastic nonlinearity observed in consolidated granular media can be attributed to the combination of slow and fast effects, which give rise to hysteresis and relaxation of both modulus and damping after the sample is perturbed. A consequence is a high level of complexity in the measurements of the sample linear and nonlinear elastic parameters. The results of experiments are dependent on the experimental protocol that is adopted to measure the relevant quantities and it is hard to quantify parameters with accuracy and repeatability. Here we focus on examining Nonlinear Resonant Ultrasound Spectroscopy, showing experimentally the role of slow dynamics in the process and quantifying/discussing its influence on the quantification of nonlinearity. We also propose a model to describe the process, which shows that different contributions to nonlinearity (e.g., classical and hysteretic) could be due to physical features (defects) relaxing with different relaxation times.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/EH23_020%2F0008501" target="_blank" >EH23_020/0008501: Metamateriály pro extrémně tepelně namáhané strojní součásti</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Scientific Reports

ISSN

2045-2322

e-ISSN

2045-2322

Svazek periodika

15

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

27286

Kód UT WoS článku

001537687100029

EID výsledku v databázi Scopus

2-s2.0-105011728940