Static, free vibration and thermal analysis of composite plates and shells using a flat triangular shell element

1996 ◽  
Vol 17 (5) ◽  
pp. 343-357 ◽  
Author(s):  
R. K. Kapania ◽  
P. Mohan
Keyword(s):  
Thermal Analysis ◽  
Free Vibration ◽  
Composite Plates ◽  
Shell Element ◽  
Triangular Shell Element ◽  
Plates And Shells

Nonlinear Analysis of Composite Plates and Shells Subjected to In-Plane Loading

2018 ◽  
Vol 877 ◽  
pp. 341-346
Author(s):  
Kari Thangaratnam ◽  
R. Sanjana
Keyword(s):  
Nonlinear Analysis ◽  
Present Model ◽  
Coupling Effect ◽  
Composite Plates ◽  
Shell Element ◽  
Solution Procedure ◽  
Element Formulation ◽  
Nonlinear Behaviour ◽  
Aerospace Application ◽  
Plates And Shells

In this article, nonlinear analysis of the composite plates and shells were carried out using the semiloof shell element. The finite element formulation is based on Green strains and Piola-Kirchhoff stresses. The nonlinear solution procedure was implemented to study the nonlinear behaviour of composite plates and shells. Due to coupling effect in composite plate and shells under in-plane load, pre-buckling displacement is significant and hence the behaviour is nonlinear. A verification study has been carried out to establish the efficiency of the present model. Since the margin of factor of safety is less in aerospace application, the detailed understanding and study of pre-buckling displacement is necessary for the designer.

Integrated Thermal Structural Analysis of Advanced Composite Plates and Shells

2018 ◽  
Vol 877 ◽  
pp. 335-340
Author(s):  
Kari Thangaratnam ◽  
Divya ◽  
Evangeline Kumar
Keyword(s):  
Finite Element ◽  
Thermal Stress ◽  
Structural Analysis ◽  
Thermal Protection ◽  
Temperature Response ◽  
Composite Plates ◽  
Shell Element ◽  
Finite Element Program ◽  
Advanced Composite ◽  
Plates And Shells

Thermo-structural analysis with advanced composite plates and shells has been performed using Finite element method in order to determine temperature response and associated thermal stress. On solving the Fourier’s heat conduction equation, temperature profile is arrived at, with the assumption of linear/uniform temperature distribution through the thickness. Finite element program is developed for steady-state heat transfer problems using Semiloof shell element. Validation for integrated thermo-structural analysis has been done and compared with the available results from literature. The new results thus obtained are presented in terms of temperature, thermal stress, and displacement. The results obtained will be useful particularly in nuclear reactor vessels and Thermal Protection System (TPS) in aeronautical engineering.

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