Spring constants of filament-wound composite circular rings

P. C. Tse*, S. R. Reid, S. P. Ng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Closed-form solutions from complementary strain energy are derived for the spring stiffnesses of mid-surface symmetric, filament-wound, composite circular rings under unidirectional loading. A three-dimensional finite element analysis (FEA) including the effects of transverse shear has also been applied to study the problem. Four ±45° and four ±75° E-glass/epoxy composite rings of odd numbers of coves were tested. Comparisons of the results obtained from the two methods with experimental data are made and the results are found to be in good agreement. The FEA prediction of stiffness is always higher than the theoretical result. The relationships between the spring stiffness and the winding angles and geometry of the filament-wound composite ring are considered and discussed.

Original languageEnglish
Pages (from-to)211-226
Number of pages16
JournalProceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
Issue number2
Publication statusPublished - 1 Dec 2001


  • Composite rings
  • Finite element analysis (FEA)
  • Stiffnesses


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