TY - GEN
T1 - A variable transverse stiffness sandwich structure using fluidic flexible matrix composite (F2MC)
AU - Li, Suyi
AU - Lotfi, Amir
AU - Shan, Ying
AU - Wang, K. W.
AU - Rahn, Christopher D.
AU - Bakis, Charles E.
PY - 2008/6/3
Y1 - 2008/6/3
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=44449146582&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=44449146582&partnerID=8YFLogxK
U2 - 10.1117/12.768417
DO - 10.1117/12.768417
M3 - Conference contribution
AN - SCOPUS:44449146582
SN - 9780819471147
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Active and Passive Smart Structures and Integrated Systems 2008
T2 - Active and Passive Smart Structures and Integrated Systems 2008
Y2 - 10 March 2008 through 13 March 2008
ER -