Hydrogen elasticity solution of functionally-graded spheres, cylinders and disks
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Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Pergamon-Elsevier Science Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Hydrogen induced stresses in functionally-graded axisymmetric spheres, cylinders and disks are investigated by the combine use of infinitesimal theory of plane elasticity and Complementary Functions Method for the first time. Computations of the stresses in circular members under hydrogenation and dehydrogenation have been carried out. The material properties of circular members are assumed to be varied through the radial coordinate. The plane analysis of hydrogenated inhomogeneous materials leads to two-point boundary value problem with a governing differential equation of variable coefficients. The implementation of Complementary Functions Method into the analysis results in a powerful solution scheme to the hydrogen elasticity problems of functionally graded circular members. Three different grading rules are considered and effects of mixing ratios investigated. The variation on the grading rules affects the radial stress more than hoop stress which may be the crucial finding in the design of hydrogenated inhomogeneous materials. Validation of the results is done using benchmark solutions available in the literature for isotropic sphere. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Açıklama
Yildirim, Sefa/0000-0002-9204-5868
Anahtar Kelimeler
Hydrogen induced stresses, Functionally graded materials, Circular members, Plane elasticity, Complementary functions method
Kaynak
International Journal of Hydrogen Energy
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
45
Sayı
41
