A variable transverse stiffness sandwich structure using fluidic flexible matrix composite (F2MC)

Suyi Li, Amir Lotfi, Ying Shan, K. W. Wang, Christopher D. Rahn, Charles E. Bakis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

Presented in this paper is the development of a novel honeycomb sandwich panel with variable transverse stiffness. In this structure, the traditional sandwich face sheets are replaced by the fluidic flexible matrix composite (F2MC) tube layers developed in recent studies1,2. The F2MC layers, combined with the anisotropic honeycomb core material properties, provide a new sandwich structure with variable stiffness properties for transverse loading. In this research, an analytical model is derived based on Lekhitskii's anisotropic pressurized tube solution and Timoshenko beam theory. Experimental investigations are also conducted to verify the analytical findings. A segmented multiple-F2MC-tube configuration is synthesized to increase the variable stiffness range. The analysis shows that the new honeycomb sandwich structure using F2MC tubes of 10 segments can provide a high/low transverse stiffness ratio of 60. Segmentation and stiffness control can be realized by an embedded valve network, granting a fast response time.

Original languageEnglish (US)
Title of host publicationActive and Passive Smart Structures and Integrated Systems 2008
DOIs
StatePublished - Jun 3 2008
EventActive and Passive Smart Structures and Integrated Systems 2008 - San Diego, CA, United States
Duration: Mar 10 2008Mar 13 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6928
ISSN (Print)0277-786X

Other

OtherActive and Passive Smart Structures and Integrated Systems 2008
CountryUnited States
CitySan Diego, CA
Period3/10/083/13/08

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Li, S., Lotfi, A., Shan, Y., Wang, K. W., Rahn, C. D., & Bakis, C. E. (2008). A variable transverse stiffness sandwich structure using fluidic flexible matrix composite (F2MC). In Active and Passive Smart Structures and Integrated Systems 2008 [69280M] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6928). https://doi.org/10.1117/12.768417