International Journal of Material Forming

, Volume 3, Supplement 2, pp 1217–1227 | Cite as

Numerical study on thermo-stamping of woven fabric composites based on double-dome stretch forming

  • Wonoh Lee
  • Moon-Kwang Um
  • Joon-Hyung Byun
  • Philippe Boisse
  • Jian Cao
Original Research

Abstract

Through the international corporative benchmark works, the material characterization of the woven fabric composites has been examined to better understand their mechanical properties and to provide the process design information for numerical analysis. As the second stage of the benchmark work, the double-dome geometry has been used to illustrate the effect of numerical schemes on the forming behaviors of the woven composites parts. To account for the change of fiber orientation under the large deformation, the non-orthogonal constitutive model was utilized and nonlinear friction behavior was incorporated in the simulation. The equivalent material properties based on the contact status were used for the thermo-stamping process. Furthermore, we incorporated a recently developed non-orthogonal model which captures the dependency of shear behavior of woven fabric composites on the tensions in yarns. Simulation results showed the effect of coupling on the predicted forming behavior for the double-dome parts. As numerical results, blank draw-in, punch force history and fiber orientation after forming have been compared based on various numerical models and methods.

Keywords

Woven fabric composites Thermo-stamping Non-orthogonal constitutive model Tension-shear coupling 

Notes

Acknowledgements

The authors would like to acknowledge the support from the Korea Foundation for International Cooperation of Science & Technology (KICOS) through a grant provided by the Korean Ministry of Education, Science & Technology(MEST) in 2007 (No. K20704000090), and the NSF grant CMMI-0300168 and its IREE supplement 0637072.

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Copyright information

© Springer/ESAFORM 2009

Authors and Affiliations

  • Wonoh Lee
    • 1
  • Moon-Kwang Um
    • 1
  • Joon-Hyung Byun
    • 1
  • Philippe Boisse
    • 2
  • Jian Cao
    • 3
  1. 1.Composite Materials Research GroupKorea Institute of Materials ScienceChangwon-siSouth Korea
  2. 2.LaMCoSINSA-LyonVilleurbanneFrance
  3. 3.Department of Mechanical EngineeringNorthwestern UniversityEvanstonUSA

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