A hybrid approach for quantifying the winding process and material effects on sheet coil deformation

Shunping Li*, Jian Cao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


Excessive coil deformation can complicate normal handling of a wound or rolled coil, cause difficulties in mass production, and introduce undesirable variations in the subsequent manufacturing processes. Four critical factors for coil deformation have been identified, i.e., radial stiffness of the coil material, winding tension, stiffness of the core which supports the coil, and lubrication. In this paper, we advance the understanding of coil deformation by developing an equivalent material model based on the internal stress distribution obtained from a two-dimensional winding-analysis model. The proposed material model is then implemented in a multi-layer finite element model to study the coil deformation under gravitational loading. This proposed framework can quantify the contribution of each factor in the coil deformation and thereby provide more scientific base in the engineering design process. The approach is used to analyze the deformation of laminate sheet coils.

Original languageEnglish (US)
Pages (from-to)303-313
Number of pages11
JournalJournal of Engineering Materials and Technology, Transactions of the ASME
Issue number3
StatePublished - Jul 2004


  • "Soft Coil"
  • Coil Deformation
  • Finite Element Analysis
  • Laminate Sheet

ASJC Scopus subject areas

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


Dive into the research topics of 'A hybrid approach for quantifying the winding process and material effects on sheet coil deformation'. Together they form a unique fingerprint.

Cite this