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

AT Kalali, Saeid Hadidi Moud, B Hassani

Research output: Contribution to journalArticle

7 Citations (Scopus)
83 Downloads (Pure)

Abstract

A new elastio-plastic stress solution in axisymmetric problems (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.
Original languageEnglish
Pages (from-to)819-834
Number of pages16
JournalLatin American Journal of Solids and Structures
Volume13
Issue number5
Early online date17 Feb 2016
DOIs
Publication statusPublished - 2016

Keywords

  • Rotating disk
  • pressure vessel
  • elastic-plastic analysis
  • functionally graded material

Fingerprint Dive into the research topics of 'Elasto-Plastic Stress Analysis in Rotating Disks and Pressure Vessels Made of Functionally Graded Materials'. Together they form a unique fingerprint.

  • Cite this