The Editor in Chief has retracted this article because of significant overlap with a previously-published article by different authors [1] and an article by different authors that was simultaneously under consideration in a different journal [2].

Hamed Safarpour has not explicitly stated whether they agree to this retraction notice. Haiquan Wang, Hongyan Zhang, and Ramin Dousti have not responded to any correspondence from the publisher about this retraction.

[1] Al-Furjan, M.S.H., Habibi, M., Ni, J. et al. Frequency simulation of viscoelastic multi-phase reinforced fully symmetric systems. Engineering with Computers (2020). https://doi.org/10.1007/s00366-020-01200-x.

[2] Al-Furjan M.S.H., Hatami A., Habibi M., et al. On the vibrations of the imperfect sandwich higher-order disk with a lactic core using generalize differential quadrature method. Composite Structures (2021). https://doi.org/10.1016/j.compstruct.2020.113150.

The online version of this article contains the full text of the retracted article as Supplementary Information.