Research Article
A Refined Higher-Order Hybrid Stress Quadrilateral Element for Free Vibration and Buckling Analyses of Reissner-Mindlin Plates
Table 21
The uniaxial, biaxial, and pure shear buckling load factor for a square plate with a circular hole and different boundary conditions.
| | Buckling load | Boundary | EFG (FSDT) | EFG (TSDT) | Shear-MK | HQ8-R |
| | Uniaxial | CCCC | 7.995 | 8.097 | 8.0777 | 8.0543 | | SSSS | 1.986 | 1.969 | 1.9544 | 2.0580 | | Biaxial | CCCC | 4.781 | 4.860 | 4.9878 | 4.8477 | | SSSS | 1.032 | 1.021 | 1.0511 | 1.0696 | | Pure shear | CCCC | 12.669 | 13.357 | 13.5252 | 12.6976 | | SSSS | 7.867 | 7.873 | 8.1544 | 7.8971 |
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