Research Article
Nonlinear Parametric Dynamics of Bidirectional Functionally Graded Beams
Table 1
Comparison of the dimensionless fundamental frequencies of bidirectional functionally graded beam with
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| ā | | | | | |
| | [14] | 2.8330 | 2.8251 | 2.8115 | 2.7919 | Present | 2.8332 | 2.8248 | 2.8109 | 2.7918 | | [14] | 2.8291 | 2.8212 | 2.8076 | 2.7880 | Present | 2.8298 | 2.8214 | 2.8076 | 2.7884 | | [14] | 2.8232 | 2.8154 | 2.8017 | 2.7822 | Present | 2.8242 | 2.8158 | 2.8020 | 2.7829 | | [14] | 2.8154 | 2.8076 | 2.7939 | 2.7744 | Present | 2.8163 | 2.8079 | 2.7941 | 2.7751 |
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1 and are the functional gradient parameters defined in [ 14]. |