Zobrazeno 1 - 10
of 329
pro vyhledávání: '"Geometric and material buckling"'
Autor:
Chen Gong, Zhang Chunyu
Publikováno v:
Annals of Nuclear Energy. 111:702-708
For the important applications which need carry out many times of neutron diffusion calculations such as the fuel depletion analysis and the neutronics-thermohydraulics coupling analysis, fast and accurate solutions of the neutron diffusion equation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::668d2b1e5e44e837f3ba1558082213b2
https://doi.org/10.1016/j.anucene.2017.09.044
https://doi.org/10.1016/j.anucene.2017.09.044
Autor:
Fengwen Wang, Ole Sigmund
Publikováno v:
Wang, F & Sigmund, O 2021, ' 3D architected isotropic materials with tunable stiffness and buckling strength ', Journal of the Mechanics and Physics of Solids, vol. 152, 104415 . https://doi.org/10.1016/j.jmps.2021.104415
This paper presents a class of 3D single-scale isotropic materials with tunable stiffness and buckling strength obtained via topology optimization and subsequent shape optimization. Compared to stiffness-optimal closed-cell plate material, the materi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e14fdedb3c3e92169aeb0160e8f4376
https://doi.org/10.1016/j.jmps.2021.104415
https://doi.org/10.1016/j.jmps.2021.104415
Publikováno v:
RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
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[EN] Different spatial modes can be defined for the neutron diffusion equation such as the k; a and c-modes. These modes have been successfully used for the analysis of nuclear reactor characteristics. In this work, these modes are studied using a hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd173d0d8d9040d277930230f0458b2a
https://doi.org/10.1016/j.anucene.2017.08.018
https://doi.org/10.1016/j.anucene.2017.08.018
Autor:
Gilberto Espinosa-Paredes
Publikováno v:
Annals of Nuclear Energy. 107:136-143
The aim of this paper is the mathematical derivation, and numerical analysis of the fractional-space neutron point kinetics (F-SNPK) equations for nuclear reactor dynamics. The classic neutron point kinetics (CNPK) equations are one of the most impor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4e27b4b4f50393050a354b396d74797
https://doi.org/10.1016/j.anucene.2016.08.007
https://doi.org/10.1016/j.anucene.2016.08.007
Autor:
Imbaby I. Mahmoud, Mohamed S. El_Tokhy
Publikováno v:
Nuclear Engineering and Design. 318:256-273
There is no one model can describe the neutron point kinetic formulation of reactor behaviors. This is due to that nuclear reactor operates in different time regions under different conditions. Therefore, we investigated in this paper several models
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a69a8484c9fd7d9ffb4ca94e8ac0cba
https://doi.org/10.1016/j.nucengdes.2017.04.025
https://doi.org/10.1016/j.nucengdes.2017.04.025
Autor:
Wei Wang, Xinming Qiu
Publikováno v:
International Journal of Mechanical Sciences. 126:120-129
An analytical model is proposed for global buckling circular tubes of low diameter-to-thickness ratio ( 25 D / t 40 ) and moderate length ( 7 L / D 8 ), based on experimental observations and numerical simulations. Compared with FEM simulations, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::307aa39ea917a8b434b19a7a6e124327
https://doi.org/10.1016/j.ijmecsci.2017.03.019
https://doi.org/10.1016/j.ijmecsci.2017.03.019
Autor:
Fahimeh Mehralian, Yaghoub Tadi Beni
Publikováno v:
Journal of Mechanical Science and Technology. 31:1773-1787
In the present study, the buckling of piezoelectric cylindrical nanoshell subjected to an axial compression, an applied voltage and uniform temperature change resting on Winkler-Pasternak foundation is studied analytically. The modified couple stress
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b26ac1d197fe7e1ac1fb5983fd1c6712
https://doi.org/10.1007/s12206-017-0325-8
https://doi.org/10.1007/s12206-017-0325-8
Publikováno v:
International Journal of Solids and Structures. 108:230-243
Buckling due to diffusion-induced compressive stress has been observed during the lithiation of various nanowires, and can affect the mechanical and electrochemical performance of nanowire-based electrodes. This study is focused on the diffusion-indu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91c21424f3db1d2e0e91e285eef7a3f3
https://doi.org/10.1016/j.ijsolstr.2016.12.020
https://doi.org/10.1016/j.ijsolstr.2016.12.020
Publikováno v:
Structural and Multidisciplinary Optimization. 55:2259-2283
The paper is concerned with the sensitivity analysis of structural responses in context of linear and non-linear stability phenomena like buckling and snapping. The structural analysis covering these stability phenomena is summarised. Design sensitiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44c802e58903532e221100ef87b68689
https://doi.org/10.1007/s00158-016-1639-3
https://doi.org/10.1007/s00158-016-1639-3
Autor:
Yosef G. Ali Madee, Ltfei A. Abdalsmd, Khaled M. Elhadad, Aslı Kurnaz, Hand Hadia Almezogi, Aybaba Hançerlioğulları, Salem Alaraby Ali Shufat, Mansur Mohamed Ali Mansur
Publikováno v:
Open Journal of Applied Sciences. :68-81
In this study, based differential equations methods are used to solve equations because these methods are dependent on boundary value data more than other mathematical equations. We have calculated neutron flux, criticality and geometrical eigenvalue
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b8b1a17f3f9ec7d56a4eb6c30f8e98d
https://doi.org/10.4236/ojapps.2017.72007
https://doi.org/10.4236/ojapps.2017.72007