Free vibration analysis of multidirectional FG porous annular sector plates based on three-dimensional elasticity using GDQ with RSM-derived predictive frequency formulas
Scientific Reports, Published online: 10 October 2026; doi:10.1038/s41598-026-72346-9 Free vibration analysis of multidirectional FG porous annular sector plates based on three-dimensional elasticity using GDQ with RSM-derived predictive frequency formulas
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