✦ LIBER ✦

Vibration analysis of microscale plates based on modified couple stress theory

✍ Scribed by Li Yin; Qin Qian; Lin Wang; Wei Xia

Publisher: Elsevier Science
Year: 2010
Tongue: English
Weight: 243 KB
Volume: 23
Category: Article
ISSN: 0894-9166
DOI: 10.1016/s0894-9166(10)60040-7

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✦ Synopsis

A non-classical Kirchhoff plate model is developed for the dynamic analysis of microscale plates based on the modified couple stress theory in which an internal material length scale parameter is included. Unlike the classical Kirchhoff plate model, the newly developed model can capture the size effect of microscale plates. Two boundary value problems of rectangular microplates are solved and the size effect on the lowest two natural frequencies is investigated. It is shown that the natural frequencies of the microscale plates predicted by the current model are size-dependent when the plate thickness is comparable to the material length scale parameter.

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