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

doi:10.1117/12.768417

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 proceeding › Conference contribution

12 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 studies^1,2. 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 language	English (US)
Title of host publication	Active and Passive Smart Structures and Integrated Systems 2008
DOIs	https://doi.org/10.1117/12.768417
State	Published - Jun 3 2008
Event	Active and Passive Smart Structures and Integrated Systems 2008 - San Diego, CA, United States Duration: Mar 10 2008 → Mar 13 2008

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	6928
ISSN (Print)	0277-786X

Other

Other	Active and Passive Smart Structures and Integrated Systems 2008
Country/Territory	United States
City	San Diego, CA
Period	3/10/08 → 3/13/08

All Science Journal Classification (ASJC) codes

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

Access to Document

10.1117/12.768417

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

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title = "A variable transverse stiffness sandwich structure using fluidic flexible matrix composite (F2MC)",

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.",

author = "Suyi Li and Amir Lotfi and Ying Shan and Wang, {K. W.} and Rahn, {Christopher D.} and Bakis, {Charles E.}",

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Li, S, Lotfi, A, Shan, Y, Wang, KW, Rahn, CD & Bakis, CE 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, Active and Passive Smart Structures and Integrated Systems 2008, San Diego, CA, United States, 3/10/08. https://doi.org/10.1117/12.768417

A variable transverse stiffness sandwich structure using fluidic flexible matrix composite (F²MC). / Li, Suyi; Lotfi, Amir; Shan, Ying et al.

Active and Passive Smart Structures and Integrated Systems 2008. 2008. 69280M (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6928).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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