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Steel and Composite Structures Volume 45, Number 6, December25 2022 , pages 831-837 DOI: https://doi.org/10.12989/scs.2022.45.6.831 |
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Numerical investigation on dynamic characteristics of sandwich plates under periodic and thermal loads |
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Mouayed H.Z. Al-Toki, Wael Najm Abdullah, Ridha A. Ahmed, Nadhim M. Faleh and Raad M. Fenjan
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| Abstract | ||
| Numerical investigation on dynamic characteristics of sandwich plates under periodic and thermal loads has been presented by assuming that the plate has three layers which are a foam core and two skins. The foam core made of Aluminum has porosities with uniform and graded dispersions. The sandwich plate has been supposed to be affected by periodical compressive loads. Also, temperature variation causes uniform thermal load. The formulation has been established based upon a higher-order plate theory and Ritz method has been used to solve the equations of motion. The stability boundaries have also been obtained performing Bolotin's method. It will be indicated that stability boundaries of the sandwich plate depend on periodical load parameters, porosities,skin thickness and temperature. | ||
| Key Words | ||
| advanced thermal analysis; dynamics; heat; numerical; plate theory; sandwich plate | ||
| Address | ||
| Mouayed H.Z. Al-Toki:Middle Technical University, Technical College, Baghdad, Iraq Wael Najm Abdullah, Ridha A. Ahmed, Nadhim M. Faleh and Raad M. Fenjan:Al-Mustansiriah University, Engineering Collage P.O. Box 46049, Bab-Muadum, Baghdad 10001, Iraq | ||