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|Title:||Vibration of sandwich plates with random material properties using improved higher-order zig-zag theory|
|Citation:||Mechanics of Advanced Materials and Structures, 2010; 17(7):561-572|
|Publisher:||Taylor & Francis Ltd|
|Mihir K. Pandit, Bhrigu N. Singh and Abdul H. Sheikh|
|Abstract:||An improved higher-order zig-zag theory for vibration of soft core sandwich plates in random environment is proposed. It exploits all the merits of layer-wise theory, includes the effect of core transverse normal strain and simultaneously enjoys the benefits of single layer theory in terms of computational efficiency. The core is modeled as a 3-D elastic continuum. An efficient C0 finite element is developed for the implementation of the proposed theory. A first order perturbation approach is employed to handle the randomness in the lamina material properties. Second order statistics of natural frequencies are computed and validated with independent Monte Carlo simulation.|
|Keywords:||natural frequency; sandwich plate; finite element; perturbation technique; second order statistics|
|Rights:||Copyright © Taylor & Francis Group, LLC|
|Appears in Collections:||Civil and Environmental Engineering publications|
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