Supersonic Panel Flutter Analysis of Delaminated Plates

The present paper treats a supersonic panel flutter of simply-supported symmetrical laminates with a delamination. The panel flutter characteristics of composite laminates are obtained by a finite element method based on the Mindlin plate theory and a quasi-steady aerodynamics based on the linearized piston theory in this paper. The penalty function method is adopted to ensure the displacement continuity condition at the delamination front, and the linear spring model is also adopted to describe the effect between the delaminated surfaces. The panel flutter boundary is obtained by solving the eigenvalue equation as the flutter equation. The validity of the present method and the effects of the size and location of a delamination on the panel flutter characteristics of laminated plates are examined through the numerical results.

[1]  Maher N. Bismarck-Nasr,et al.  Finite Element Analysis of Aeroelasticity of Plates and Shells , 1992 .

[2]  Chih-Chen Chang,et al.  Finite element supersonic flutter analysis of skewed and cracked composite panels , 1998 .

[3]  Michel Géradin,et al.  Finite element analysis of Supersonic panel flutter , 1973 .

[4]  Ning Hu,et al.  LOW-VELOCITY IMPACT RESPONSE OF COMPOSITE LAMINATES WITH A DELAMINATION , 1998 .

[5]  Victor Y. Perel,et al.  Finite Element Analysis of Vibration of Delaminated Composite Beam with an Account of Contact of the Delamination Crack Faces, Based on the First-order Shear Deformation Theory , 2005 .

[6]  Ramana M. Pidaparti,et al.  Free vibration and flutter of damaged composite panels , 1997 .

[7]  Aditi Chattopadhyay,et al.  Aeroelastic control of smart composite plate with delaminations , 2000 .

[8]  P. M. Mujumdar,et al.  Flexural vibrations of beams with delaminations , 1988 .

[9]  E. Dowell.  Panel flutter - A review of the aeroelastic stability of plates and shells , 1970 .

[10]  Serge Abrate,et al.  Impact on Composite Structures , 1998 .

[11]  T. A. Weisshaar,et al.  Panel flutter suppression using adaptive material actuators , 1994 .

[12]  Masaki Kameyama,et al.  Vibration analysis of delaminated composite beams and plates using a higher-order finite element , 2002 .

[13]  Ning Hu,et al.  Buckling analysis of delaminated laminates with consideration of contact in buckling mode , 1999 .

[14]  Y. Y. Liu,et al.  Vibrations of split beams , 1982 .

[15]  Holt Ashley,et al.  Piston Theory-A New Aerodynamic Tool for the Aeroelastician , 1956 .

[16]  Hisao Fukunaga,et al.  Panel Flutter Design of Symmetrically Laminated Plates Using Lamination Parameters. , 1998 .