This paper addresses the problem of the aerothermoelastic modeling behavior and analyses of skin curved panels with static and dynamic edge movability effect in high supersonic flow. Flutter and post-flutter behavior will be analyzed toward determining under which conditions such panels will exhibit a benign instability, that is a stable limit cycle oscillation, or a catastrophic instability, that is an unstable LCO. The aerothermoelastic governing equations are developed from the geometrically non-linear theory of infinitely long two dimensional curved panels. Von Kármán non-linear strain-displacement relation in conjunction with the Kirchhoff plate-hypothesis is adopted. A geometrically imperfect curved panel forced by a supersonic/hypersonic unsteady flow is numerically investigated using Galerkin approach. These equations are based on the third-order piston theory aerodynamic for modeling the flow-induced forces. Furthermore, the effects of thermal degradation and Kelvin’s model of structural damping independent of time and temperature are also considered in this model. Computational analysis and discussion of the finding along with pertinent conclusions are presented.

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# Static/Dynamic Edge Movability Effect on Non-Linear Aerothermoelastic Behavior of Geometrically Imperfect Curved Skin Panel: Flutter and Post-Flutter Analysis

Laith K. Abbas
laithabbass@yahoo.com

,
Laith K. Abbas

Associate Professor

Institute of Launch Dynamics, Nanjing University of Science and Technology, Nanjing

, 210094, P. R. C.
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Xiaoting Rui
ruixt@163.net

,
Xiaoting Rui

Professor

Institute of Launch Dynamics, Nanjing University of Science and Technology

, Nanjing, 210094, China

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P. Marzocca
pmarzocc@clarkson.edu

,
P. Marzocca

Associate Professor

Mechanical and Aeronautical Engineering Department, Clarkson University

, Potsdam, NY, 13699
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M. Abdalla

,
M. Abdalla

Associate Professor

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R. De Breuker
R.deBreuker@tudelft.nl

R. De Breuker

Researcher

Department of Aerospace Structures, Delft University of Technology, Kluyverweg 1

, Delft, 2629HS, The Netherlands

Search for other works by this author on:

Laith K. Abbas
Associate Professor

Institute of Launch Dynamics, Nanjing University of Science and Technology, Nanjing

, 210094, P. R. C.laithabbass@yahoo.com

Xiaoting Rui
Professor

Institute of Launch Dynamics, Nanjing University of Science and Technology

, Nanjing, 210094, China

ruixt@163.net

P. Marzocca
Associate Professor

Mechanical and Aeronautical Engineering Department, Clarkson University

, Potsdam, NY, 13699pmarzocc@clarkson.edu

M. Abdalla
Associate Professor

R. De Breuker
Researcher

Department of Aerospace Structures, Delft University of Technology, Kluyverweg 1

, Delft, 2629HS, The Netherlands

R.deBreuker@tudelft.nl

*J. Appl. Mech*. Jul 2012, 79(4): 041004 (13 pages)

**Published Online:**May 9, 2012

Article history

Received:

June 15, 2009

Revised:

August 27, 2011

Posted:

January 25, 2012

Published:

May 9, 2012

Online:

May 9, 2012

Citation

Abbas, L. K., Rui, X., Marzocca, P., Abdalla, M., and De Breuker, R. (May 9, 2012). "Static/Dynamic Edge Movability Effect on Non-Linear Aerothermoelastic Behavior of Geometrically Imperfect Curved Skin Panel: Flutter and Post-Flutter Analysis." ASME. *J. Appl. Mech*. July 2012; 79(4): 041004. https://doi.org/10.1115/1.4005537

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