Journal article
EXPLICIT LOCAL BUCKLING ANALYSIS OF ROTATIONALLY RESTRAINED COMPOSITE PLATES UNDER BIAXIAL LOADING
International journal of structural stability and dynamics, Vol.7(3), pp.487-517
09/2007
Handle:
https://hdl.handle.net/2376/111463
Abstract
A variational formulation of the Ritz method is used to establish an eigenvalue problem for the local buckling behavior of composite plates elastically restrained (R) along their four edges (the RRRR plates) and subjected to biaxial compression, and the explicit solution in terms of the rotational restraint stiffness (k) is presented. Based on the different boundary and loading conditions, the explicit local buckling solution for the rotationally restrained plates is simplified to several special cases (e.g. the SSSS, SSCC, CCSS, CCCC, SSRR, RRSS, CCRR, and RRCC plates) under biaxial compression (and further reduced to uniaxial compression) with a combination of simply-supported (S), clamped (C), and/or restrained (R) edge conditions. The deformation shape function is presented by using the unique harmonic functions in both the axes to account for the effect of elastic rotational restraint stiffness (k) along the four edges of the orthotropic plate. A parametric study is conducted to evaluate the influences of the loading ratio (α), the rotational restraint stiffness (k), the aspect ratio (γ), and the flexural-orthotropy parameters (α OR and β OR ) on the local buckling stress resultants of various rotationally restrained plates, and design plots with respect to these parameters are provided. The present explicit local buckling solution of the elastically restrained composite plates and the associated design plots can be employed to facilitate design analysis of composite structures (e.g. stiffened panels, thin-walled structures, and honeycomb cores).
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Details
- Title
- EXPLICIT LOCAL BUCKLING ANALYSIS OF ROTATIONALLY RESTRAINED COMPOSITE PLATES UNDER BIAXIAL LOADING
- Creators
- PIZHONG QIAO - Department of Civil and Environmental Engineering, Washington State University, PO Box 642910, Spokane Street, Sloan 101, Pullman, WA 99164-2910, USA, Department of Engineering Mechanics, College of Civil Engineering, Hohai University, Nanjing 210098, PR ChinaLUYANG SHAN - Department of Civil and Environmental Engineering, Washington State University, PO Box 642910, Spokane Street, Sloan 101, Pullman, WA 99164-2910, USA
- Publication Details
- International journal of structural stability and dynamics, Vol.7(3), pp.487-517
- Academic Unit
- Civil and Environmental Engineering, Department of
- Identifiers
- 99900548567901842
- Language
- English
- Resource Type
- Journal article