Modeling dislocation structure development and creep–swelling coupling in neutron irradiated stainless steel

Семенов, А.А.; Woo, C.H.

doi:10.1016/j.jnucmat.2009.06.021

Cited by 8 publications

(3 citation statements)

References 45 publications

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“…It therefore appears that attainment of large swelling in each assembly prior to the development of significant gas pressure has almost certainly caused the cladding to reach the ''creep cessation'' or ''creep disappearance'' stage defined by Garner and coworkers, whereby creep initially accelerates with swelling but then ''disappears'' as the swelling rate approaches the 1%/dpa level [16,[38][39][40][41][42][43].…”

Section: Data Analysis and Discussionmentioning

confidence: 99%

Swelling and creep observed in AISI 304 fuel pin cladding from three MOX fuel assemblies irradiated in EBR-II

Garner¹,

Makenas²,

Chastain³

2011

Journal of Nuclear Materials

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Section: Data Analysis and Discussionmentioning

confidence: 99%

Swelling and creep observed in AISI 304 fuel pin cladding from three MOX fuel assemblies irradiated in EBR-II

Garner¹,

Makenas²,

Chastain³

2011

Journal of Nuclear Materials

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“…Semenov and Woo [ 21 ] modeled and analyzed dislocation structure development in metals and alloys with an account of anisotropic nucleation and dislocation loops subjected to actions of fast neutrons and external stresses. The stress-induced dislocation anisotropy was detected which exhibited a strong correlation with swelling.…”

Section: Introductionmentioning

confidence: 99%

“…The published experimental data presented in [ 18 , 19 , 20 , 21 , 22 , 23 , 24 ] show that, under the radioactive irradiation influence, a significant change is observed both in the thermo physical and elastic properties, as well as in the short-term and long-term mechanical characteristics of materials.…”

Section: Introductionmentioning

confidence: 99%

Stability Improvement of Flexible Shallow Shells Using Neutron Radiation

et al. 2020

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Microelectromechanical systems (MEMS) are increasingly playing a significant role in the aviation industry and space exploration. Moreover, there is a need to study the neutron radiation effect on the MEMS structural members and the MEMS devices reliability in general. Experiments with MEMS structural members showed changes in their operation after exposure to neutron radiation. In this study, the neutron irradiation effect on the flexible MEMS resonators’ stability in the form of shallow rectangular shells is investigated. The theory of flexible rectangular shallow shells under the influence of both neutron irradiation and temperature field is developed. It consists of three components. First, the theory of flexible rectangular shallow shells under neutron radiation in temperature field was considered based on the Kirchhoff hypothesis and energetic Hamilton principle. Second, the theory of plasticity relaxation and cyclic loading were taken into account. Third, the Birger method of variable parameters was employed. The derived mathematical model was solved using both the finite difference method and the Bubnov–Galerkin method of higher approximations. It was established based on a few numeric examples that the irradiation direction of the MEMS structural members significantly affects the magnitude and shape of the plastic deformations’ distribution, as well as the forces magnitude in the shell middle surface, although qualitatively with the same deflection the diagrams of the main investigated functions were similar.

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