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| A new higher-order shear deformation theory based on global-local superposition and refined triangular plate element of composite laminate |
| Revised:December 22, 2003 |
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| DOI：10.7511/jslx20056125 |
| KeyWord:higher-order shear deformation theory,laminated composite plate,refined triangular plate element, |
| WU Zhen~* CHEN Wan-ji~* |
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| Abstract: |
| A new higher-order shear deformation theory based on global-local superposition technique is developed.The global displacement components are of the Reddy theory(1984) while local components are of the local displacement components of the Li X Y 1,2-3 double-superposition theory(1997).The present theory satisfies the free surface conditions and the geometric and stress continuity conditions at interfaces.At the same time,the theory compared with 1,2-3 theory greatly reduces the variables.A refined three-node triangular plate element(9 degrees of freedom in each node) based on new global-local higher-order theory is presented.Numerical results show that the refined triangular plate element is capable to accurately calculate global displacement and interlaminar stress. |
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