A layerwise/solid-element method of the linear static and free vibration analysis for the composite sandwich plates

2013 ◽  
Vol 52 ◽  
pp. 187-198 ◽  
Author(s):  
Dinghe Li ◽  
Yan Liu ◽  
Xiong Zhang
Keyword(s):  
Free Vibration ◽  
Vibration Analysis ◽  
Free Vibration Analysis ◽  
Sandwich Plates ◽  
Composite Sandwich ◽  
Solid Element ◽  
Composite Sandwich Plates ◽  
Element Method

Consistent higher-order free vibration analysis of composite sandwich plates

2008 ◽  
Vol 82 (4) ◽  
pp. 609-621 ◽  
Author(s):  
Tongan Wang ◽  
Vladimir Sokolinsky ◽  
Shankar Rajaram ◽  
Steven R. Nutt
Keyword(s):  
Free Vibration ◽  
Vibration Analysis ◽  
Free Vibration Analysis ◽  
Higher Order ◽  
Sandwich Plates ◽  
Composite Sandwich ◽  
Composite Sandwich Plates

Free Vibration of Thermally Buckled Composite Sandwich Plates

2005 ◽  
Vol 128 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Le-Chung Shiau ◽  
Shih-Yao Kuo
Keyword(s):  
Free Vibration ◽  
Vibration Mode ◽  
Free Vibration Analysis ◽  
Sandwich Plates ◽  
Vibration Modes ◽  
Buckling Mode ◽  
Composite Sandwich ◽  
Plate Buckling ◽  
Pattern Change ◽  
Composite Sandwich Plates

A high precision triangular plate element is developed for the free vibration analysis of thermally buckled composite sandwich plates. Due to an uneven thermal expansion in the two principal material directions, the buckling mode of the plate may change from one pattern to another in the postbuckling region for certain fiber orientation and aspect ratio of the plate. Because of this buckle pattern change, the sequence of natural frequencies of the plate is also suddenly altered. By examining the buckling and free vibration modes of the plate, a clear picture of buckle pattern change and vibration mode shifting is presented. Numerical results show that if the shape of a free vibration mode is similar to the plate buckling mode then the natural frequency of that mode will drop to zero when the temperature reaches the buckling temperature.

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