Advanced Thick FGM Plates-Cylindrical Shells in Linear Unsteady Supersonic Flow

Title:Advanced Thick FGM Plates-Cylindrical Shells in Linear Unsteady Supersonic Flow

Volume: 3

Author(s): Chih-Chiang Hong*

Affiliation:

• Department of Mechanical Engineering, Hsiuping University of Science and Technology, Taichung, 412-406, Taiwan, ROC

Keywords: Supersonic flow, thick FG, plates-cylindrical shells, TSDT, thermal vibration, GDQ.

Abstract:

Introduction: Thick functionally graded (FG) plates-cylindrical shells with third-order shear deformation theory (TSDT) of displacement models under thermal vibration in linear unsteady supersonic flow are investigated by using the generalized differential quadrature (GDQ) method.

Method: The nonlinear coefficient term of TSDT models and the advanced nonlinear shear correction coefficient expression are used to study the thermal vibration of thick FG plates and cylindrical shells in linear unsteady supersonic flow. At the intersection of FG plates-cylindrical shells, the displacements, stress resultants, and moment resultants could be reasonably assumed in the continuity condition for the differential volume in linear unsteady supersonic flow, respectively.

Result: The dynamic equilibrium differential equations of thick FG plates and cylindrical shells in linear unsteady supersonic flow, respectively in terms of partial derivatives of displacements and shear rotations subjected to partial derivatives of thermal loads, mechanical loads consist of the linear supersonic aerodynamic pressure and inertia terms can be presented. Two parametric effects including environment temperature and functionally graded material (FGM) power law index on the thermal stress and center displacement of thick FG plates-cylindrical shells in linear unsteady supersonic flow are investigated.

Conclusion: The linear unsteady supersonic flow over the outer surface of thick FG platescylindrical shells provides the additional aerodynamic effect on the values of displacements and stresses.

Cite this article as:

Hong Chih-Chiang*, Advanced Thick FGM Plates-Cylindrical Shells in Linear Unsteady Supersonic Flow, Current Mechanics and Advanced Materials 2024; 3 : e120124225624 . https://dx.doi.org/10.2174/0126661845283999231214113735