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Earthquakes and Structures Volume 16, Number 1, January 2019 , pages 55-67 DOI: https://doi.org/10.12989/eas.2019.16.1.055 |
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Finite element solution of stress and flexural strength of functionally graded doubly curved sandwich shell panel |
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Sushmita Dash, Kulmani Mehar, Nitin Sharma, Trupti Ranjan Mahapatra and Subrata Kumar Panda
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| Abstract | ||
| The finite solutions of deflection and the corresponding in-plane stress values of the graded sandwich shallow shell structure are computed in this research article via a higher-order polynomial shear deformation kinematics. The shell structural equilibrium equation is derived using the variational principle in association with a nine noded isoprametric element (nine degrees of freedom per node). The deflection values are computed via an own customized MATLAB code including the current formulation. The stability of the current finite element solutions including their accuracies have been demonstrated by solving different kind of numerical examples. Additionally, a few numerical experimentations have been conducted to show the influence of different design input parameters (geometrical and material) on the flexural strength of the graded sandwich shell panel including the geometrical configurations. | ||
| Key Words | ||
| functionally graded sandwich panels; HOSDT; variational principle; FEM | ||
| Address | ||
| Sushmita Dash: Department of Mechanical Engineering, GITA, Bhubaneswar, 752054, Odisha, India Kulmani Mehar: Mechanical Engineering Department, MITS, Madanapalle, Andra Pradesh, India Nitin Sharma: School of Mechanical Engineering, KIIT, Bhubaneswar, 751024, Odisha, India Trupti Ranjan Mahapatra: Department of Production Engineering, Veer Surendra Sai University of Technology (VSSUT), Burla, 768018, Odisha, India Subrata Kumar Panda: Department of Mechanical Engineering, NIT, Rourkela, 769008, Odisha, India | ||