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| On hypotheses of micro scale composite laminated plate based on the new modified couple stress theory in free vibration analysis |
| Received:March 27, 2016 Revised:September 08, 2016 |
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| DOI：10.7511/jslx201704005 |
| KeyWord:anisotropic modified couple stress theory scale effects composite laminated plate free vibration |
| Author | Institution |
| 贺丹 |
沈阳航空航天大学 辽宁省飞行器复合材料结构分析与仿真重点实验室, 沈阳 |
| 杨万里 |
沈阳航空航天大学 辽宁省飞行器复合材料结构分析与仿真重点实验室, 沈阳 |
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| Abstract: |
| A series of hypotheses have been adopted to simplify micro scale composite laminated beam/plate models when analyzing them based on the new modified couple stress theory.But the influences of these hypotheses on the accuracy of numerical results have been barely discussed.In this study,a new micro scale composite laminated Reddy plate model without any simplification was proposed as a standard model by which an exact free vibration analysis was performed.The effects and applicability of the simplified hypotheses on the free vibration analysis for micro scale composite laminated plates were discussed through the comparison of numerical results.It is concluded that these hypotheses have little effect on the free vibration of thin plates,on the other hand,they have a significant effect on higher modes in the cases of thick plates. |