On the thermoelastic model of real materials with relaxation dynamics of defects

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On the thermoelastic model of real materials with relaxation dynamics of defects. / Семенов, Борис Николаевич ; Индейцев, Дмитрий Анатольевич ; Морозов, Никита Федорович; Вавилов, ДмитрийСергеевич; Муратиков, Кирилл Львович; Кудрявцев, А.А.

In: Acta Mechanica, Vol. 235, No. 7, 01.07.2024, p. 4141-4148.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{530738b4db184aaf9f9c917d41ad0479,

title = "On the thermoelastic model of real materials with relaxation dynamics of defects",

abstract = "It is shown that the conventional theory of thermoelasticity is insufficient to explain the behavior of pulsed laser ultrasonic signals from materials with defects. A theoretical model of thermoelasticity is proposed that takes into account the thermal excitation of defect states by laser radiation with their subsequent recovery to the initial state with a certain relaxation time. The linear model of thermoelasticity in terms of slow dynamics is developed. The difference in the behavior of ultrasonic signals from dielectrics and metals under pulsed laser excitation is analyzed and explained. It is shown that in the linear approximation of the thermoelastic model, slow dynamic effects can be taken into account by introducing an effective thermal coefficient.",

keywords = "термоупругая модель, релаксационная динамика",

author = "Семенов, {Борис Николаевич} and Индейцев, {Дмитрий Анатольевич} and Морозов, {Никита Федорович} and ДмитрийСергеевич Вавилов and Муратиков, {Кирилл Львович} and А.А. Кудрявцев",

year = "2024",

month = jul,

day = "1",

doi = "10.1007/s00707-024-03924-z",

language = "English",

volume = "235",

pages = "4141--4148",

journal = "Acta Mechanica",

issn = "0001-5970",

publisher = "Springer Nature",

number = "7",

}

RIS

TY - JOUR

T1 - On the thermoelastic model of real materials with relaxation dynamics of defects

AU - Семенов, Борис Николаевич

AU - Индейцев, Дмитрий Анатольевич

AU - Морозов, Никита Федорович

AU - Вавилов, ДмитрийСергеевич

AU - Муратиков, Кирилл Львович

AU - Кудрявцев, А.А.

PY - 2024/7/1

Y1 - 2024/7/1

N2 - It is shown that the conventional theory of thermoelasticity is insufficient to explain the behavior of pulsed laser ultrasonic signals from materials with defects. A theoretical model of thermoelasticity is proposed that takes into account the thermal excitation of defect states by laser radiation with their subsequent recovery to the initial state with a certain relaxation time. The linear model of thermoelasticity in terms of slow dynamics is developed. The difference in the behavior of ultrasonic signals from dielectrics and metals under pulsed laser excitation is analyzed and explained. It is shown that in the linear approximation of the thermoelastic model, slow dynamic effects can be taken into account by introducing an effective thermal coefficient.

AB - It is shown that the conventional theory of thermoelasticity is insufficient to explain the behavior of pulsed laser ultrasonic signals from materials with defects. A theoretical model of thermoelasticity is proposed that takes into account the thermal excitation of defect states by laser radiation with their subsequent recovery to the initial state with a certain relaxation time. The linear model of thermoelasticity in terms of slow dynamics is developed. The difference in the behavior of ultrasonic signals from dielectrics and metals under pulsed laser excitation is analyzed and explained. It is shown that in the linear approximation of the thermoelastic model, slow dynamic effects can be taken into account by introducing an effective thermal coefficient.

KW - термоупругая модель

KW - релаксационная динамика

UR - https://www.mendeley.com/catalogue/b7db4617-20b3-3f1c-8eff-1ac0a757ef07/

U2 - 10.1007/s00707-024-03924-z

DO - 10.1007/s00707-024-03924-z

M3 - Article

VL - 235

SP - 4141

EP - 4148

JO - Acta Mechanica

JF - Acta Mechanica

SN - 0001-5970

IS - 7

ER -

ID: 126939361