On the mechanism of surface-parallel cracks formation under pulsed heat loads

A. S. Arakcheev; S. A. Arakcheev; I. V. Kandaurov; A. A. Kasatov; V. V. Kurkuchekov; G. G. Lazareva; A. G. Maksimova; V. I. Mashukov; V. A. Popov; Yu A. Trunev; A. A. Vasilyev; L. N. Vyacheslavov

doi:10.1016/j.nme.2019.100677

On the mechanism of surface-parallel cracks formation under pulsed heat loads

A. S. Arakcheev, S. A. Arakcheev, I. V. Kandaurov, A. A. Kasatov, V. V. Kurkuchekov, G. G. Lazareva, A. G. Maksimova, V. I. Mashukov, V. A. Popov, Yu A. Trunev, A. A. Vasilyev, L. N. Vyacheslavov

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

6 Цитирования (Scopus)

Аннотация

This paper presents a model for calculating deformations and mechanical stresses around a crack normal to surface that appeared under pulsed heat load. The model was applied to calculation of stresses that may lead to formation of cracks along the surface, which are observed when tungsten is exposed to ITER-relevant heat load. It was found that such stresses might be not negligibly small in comparison with the ultimate tensile strength, and thus the appearance of cracks normal to the surface may leads to development of cracks parallel to the surface. The calculated deformation of the region around a crack is in good agreement with the experimental data. The deformations calculated can be a basis for experimental detection of formation of cracks normal and parallel to the surface.

Язык оригинала	английский
Номер статьи	100677
Число страниц	6
Журнал	Nuclear Materials and Energy
Том	20
DOI	https://doi.org/10.1016/j.nme.2019.100677
Состояние	Опубликовано - 1 авг. 2019

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10.1016/j.nme.2019.100677

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Arakcheev, A. S., Arakcheev, S. A., Kandaurov, I. V., Kasatov, A. A., Kurkuchekov, V. V., Lazareva, G. G., Maksimova, A. G., Mashukov, V. I., Popov, V. A., Trunev, Y. A., Vasilyev, A. A., & Vyacheslavov, L. N. (2019). On the mechanism of surface-parallel cracks formation under pulsed heat loads. Nuclear Materials and Energy, 20, [100677]. https://doi.org/10.1016/j.nme.2019.100677

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title = "On the mechanism of surface-parallel cracks formation under pulsed heat loads",

abstract = "This paper presents a model for calculating deformations and mechanical stresses around a crack normal to surface that appeared under pulsed heat load. The model was applied to calculation of stresses that may lead to formation of cracks along the surface, which are observed when tungsten is exposed to ITER-relevant heat load. It was found that such stresses might be not negligibly small in comparison with the ultimate tensile strength, and thus the appearance of cracks normal to the surface may leads to development of cracks parallel to the surface. The calculated deformation of the region around a crack is in good agreement with the experimental data. The deformations calculated can be a basis for experimental detection of formation of cracks normal and parallel to the surface.",

keywords = "Cracking, Elasticity, Electron beam, Profilometry, Pulsed heat load, Theoretical simulation, Tungsten, TUNGSTEN",

author = "Arakcheev, {A. S.} and Arakcheev, {S. A.} and Kandaurov, {I. V.} and Kasatov, {A. A.} and Kurkuchekov, {V. V.} and Lazareva, {G. G.} and Maksimova, {A. G.} and Mashukov, {V. I.} and Popov, {V. A.} and Trunev, {Yu A.} and Vasilyev, {A. A.} and Vyacheslavov, {L. N.}",

year = "2019",

month = aug,

day = "1",

doi = "10.1016/j.nme.2019.100677",

language = "English",

volume = "20",

journal = "Nuclear Materials and Energy",

issn = "2352-1791",

publisher = "Elsevier Ltd",

}

On the mechanism of surface-parallel cracks formation under pulsed heat loads. / Arakcheev, A. S.; Arakcheev, S. A.; Kandaurov, I. V. и др.

В: Nuclear Materials and Energy, Том 20, 100677, 01.08.2019.

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

TY - JOUR

T1 - On the mechanism of surface-parallel cracks formation under pulsed heat loads

AU - Arakcheev, A. S.

AU - Arakcheev, S. A.

AU - Kandaurov, I. V.

AU - Kasatov, A. A.

AU - Kurkuchekov, V. V.

AU - Lazareva, G. G.

AU - Maksimova, A. G.

AU - Mashukov, V. I.

AU - Popov, V. A.

AU - Trunev, Yu A.

AU - Vasilyev, A. A.

AU - Vyacheslavov, L. N.

PY - 2019/8/1

Y1 - 2019/8/1

N2 - This paper presents a model for calculating deformations and mechanical stresses around a crack normal to surface that appeared under pulsed heat load. The model was applied to calculation of stresses that may lead to formation of cracks along the surface, which are observed when tungsten is exposed to ITER-relevant heat load. It was found that such stresses might be not negligibly small in comparison with the ultimate tensile strength, and thus the appearance of cracks normal to the surface may leads to development of cracks parallel to the surface. The calculated deformation of the region around a crack is in good agreement with the experimental data. The deformations calculated can be a basis for experimental detection of formation of cracks normal and parallel to the surface.

AB - This paper presents a model for calculating deformations and mechanical stresses around a crack normal to surface that appeared under pulsed heat load. The model was applied to calculation of stresses that may lead to formation of cracks along the surface, which are observed when tungsten is exposed to ITER-relevant heat load. It was found that such stresses might be not negligibly small in comparison with the ultimate tensile strength, and thus the appearance of cracks normal to the surface may leads to development of cracks parallel to the surface. The calculated deformation of the region around a crack is in good agreement with the experimental data. The deformations calculated can be a basis for experimental detection of formation of cracks normal and parallel to the surface.

KW - Cracking

KW - Elasticity

KW - Electron beam

KW - Profilometry

KW - Pulsed heat load

KW - Theoretical simulation

KW - Tungsten

KW - TUNGSTEN

UR - http://www.scopus.com/inward/record.url?scp=85064767952&partnerID=8YFLogxK

U2 - 10.1016/j.nme.2019.100677

DO - 10.1016/j.nme.2019.100677

M3 - Article

AN - SCOPUS:85064767952

VL - 20

JO - Nuclear Materials and Energy

JF - Nuclear Materials and Energy

SN - 2352-1791

M1 - 100677

ER -

On the mechanism of surface-parallel cracks formation under pulsed heat loads

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