Viscoplastic collapse of thin-walled tubes under cyclic bending

Wen Fung Pan, Yung Shun Her

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)


This paper presents the experimental result on the response and stability of thinwalled tubes subjected to cyclic bending with different curvature-rates. The curvatureovalization measurement apparatus, designed by Pan et al. (1998), was used for conducting the present curvature-controlled experiments on thin-walled tubular specimens of 304 stainless steel. It is observed that the higher the applied curvature-rate, the greater is the degree of hardening of metal tube. However, the ovalization of tube cross-section increases when the applied curvature-rate increases. Furthermore, due to the higher degree of the ovalization of tube cross-section for higher curvaturerates under cyclic bending, the number of cycles to produce buckling is correspondingly reduced.

Original languageEnglish
Pages (from-to)287-290
Number of pages4
JournalJournal of Engineering Materials and Technology, Transactions of the ASME
Issue number4
Publication statusPublished - 1998 Oct

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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