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Structural Engineering and Mechanics Volume 71, Number 6, September25 2019 , pages 657-668 DOI: https://doi.org/10.12989/sem.2019.71.6.657 |
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Numerical frequency analysis of skew sandwich layered composite shell structures under thermal environment including shear deformation effects |
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Pankaj V. Katariya and Subrata K. Panda
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| Abstract | ||
| The numerical thermal frequency responses of the skew sandwich shell panels structure are investigated via a higher-order polynomial shear deformation theory including the thickness stretching effect. A customized MATLAB code is developed using the current mathematical model for the computational purpose. The finite element solution accuracy and consistency have been checked via solving different kinds of numerical benchmark examples taken from the literature. After confirming the standardization of the model, it is further extended to show the effect of different important geometrical parameters such as span-to-thickness ratios, aspect ratios, curvature ratios, core-to-face thickness ratios, skew angles, and support conditions on the frequencies of the sandwich composite flat/curved panel structure under elevated temperature environment. | ||
| Key Words | ||
| frequency; FEM; HSDT; skew angle; sandwich; curved panel | ||
| Address | ||
| Department of Mechanical Engineering, National Institute of Technology Rourkela, Rourkela-769008, Odisha, India | ||