Bending and dynamic analyses of sandwich panels considering the size effect of sandwich core

The Key Laboratory of Contemporary Design & Integrated Manufacturing Technology, Northwestern Polytechnical University, 710072, Xi'an, Shaanxi, China

Corresponding author: zhangwh@nwpu.edu.cn

Received: 21 April 2009
Accepted: 5 August 2009

Abstract

In this paper, the bending and dynamic responses of sandwich panels with the size variation of different sandwich cores and the homogenized cores are analyzed numerically, including the hexagonal and rectangular cores, the square and rhombic cores and the circle and X-shape corrugated cores. In dependence on the ratio of the span dimensions to thickness, the laminate plate theory is also adopted for the static and dynamic analysis of sandwich panels with the homogenized cores. The computational results demonstrate the influencing rule of size variation of unit cells in the sandwich core on the bending and dynamic response of sandwich panels.