Latin American Journal of Solids and Structures, Volume (13), No (5), Year (2016-2) , Pages (819-834)

Title : ( Elasto-Plastic Stress Analysis in Rotating Disks and Pressure Vessels Made of Functionally Graded Materials )

Authors: amir kalali , Saeid Hadidi Moud , Behrooz Hassani ,

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Abstract

A new elastio–plastic stress solution in axisymmetric problem (rotating disk, cylindrical and spherical vessel) is presented. The rotating disk (cylindrical and spherical vessel) was made of a ceramic/metal functionally graded material, i.e. a particle–reinforced composite. It was assumed that the material’s plastic deformation follows an isotropic strain-hardening rule based on the von-Mises yield criterion. The mechanical properties of the graded material were modeled by the modified rule of mixtures. By assuming small strains, Hencky’s stress–strain relation was used to obtain the governing differential equations for the plastic region. A numerical method for solving those differential equations was then proposed that enabled the prediction of stress state within the structure. Selected finite element results were also presented to establish supporting evidence for the validation of the proposed approach.

Keywords

, Rotating disk, pressure vessel, elastic–plastic analysis, functionally graded materials
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@article{paperid:1057862,
author = {Kalali, Amir and Hadidi Moud, Saeid and Hassani, Behrooz},
title = {Elasto-Plastic Stress Analysis in Rotating Disks and Pressure Vessels Made of Functionally Graded Materials},
journal = {Latin American Journal of Solids and Structures},
year = {2016},
volume = {13},
number = {5},
month = {February},
issn = {1679-7825},
pages = {819--834},
numpages = {15},
keywords = {Rotating disk; pressure vessel; elastic–plastic analysis; functionally graded materials},
}

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%0 Journal Article
%T Elasto-Plastic Stress Analysis in Rotating Disks and Pressure Vessels Made of Functionally Graded Materials
%A Kalali, Amir
%A Hadidi Moud, Saeid
%A Hassani, Behrooz
%J Latin American Journal of Solids and Structures
%@ 1679-7825
%D 2016

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