Numerical analysis of material properties in deformation of near hemispherical shells

Xiao Zhao, Hui Chang, Bin Tang, Xu Hu Zhang, Hong Chao Kou, Jin Shan Li

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

In this paper, the effects of hardening exponent, yield strength and elastic modulus on the deformability of near hemispherical shells are investigated by means of finite element method and orthogonal experiment design. The largest eccentric angle during the deformation process and thickness reduction after the deformation are introduced to estimate the deformability quantitatively according to the deformation characteristics of near hemispherical shells. The results indicate that the hardening exponent is the most influential parameter, followed by elastic modulus and yield strength. The shell exhibits good deformability when the hardening exponent and elastic modulus are in the range of 0.1-0.125 and 70-108 GPa, respectively.

Original languageEnglish
Pages (from-to)209-213
Number of pages5
JournalJournal of Shanghai Jiaotong University (Science)
Volume16
Issue number2
DOIs
StatePublished - Apr 2011
Externally publishedYes

Keywords

  • deformability
  • finite element method
  • material properties
  • near hemispherical shells
  • orthogonal experiment design

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