Discussion on the manuscript entitled Thermal residual stress in a functionally graded material system by K. S. Ravichandran, Materials Science and Engineering A, 201(1-2), pp. 269-276
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Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Sa
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In the article entitled Thermal residual stress in a functionally graded material system, a strip element made of a combination of Al2O3 ceramic and Ni metal was considered as a functionally graded material to obtain the general expressions for thermal residual stresses. The results showed that the stress distribution changes continuously as the volume fraction of the ceramic varies according to a power function. However, an incorrect term for bending stiffness was used in this expression. In addition, the expression for the residual stress term, which is resulted from the uniform elongation of the strip fibers, should not be used to calculate the reactive bending moment. It must be obtained from the nonuniform distribution of thermal strain across the thickness. In this study, the derivation of the final expression for the thermal residual stress in a functionally graded strip element by the strain suppression method is discussed.
Açıklama
Anahtar Kelimeler
Thermal stresses, Functionally graded material (FGM), Theory of elasticity
Kaynak
Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
839
