DYNAMIC STABILITY OF PIEZOELECTRIC BRAIDED COMPOSITE PLATES
Three-dimensional braided composites are a class of textile composite materials with a fully integrated, continuous spatial fiber network that eliminates the interface problem by the inter-lacing of the tows in the thickness direction. These braided composites have attracted considerable attention in recent years due to their unique advantages such as low fabrication cost, improved flexure strength, and higher impact resistance. This paper presents a dynamic stability analysis of a simply supported 3D braided composite laminated plate with surface-bonded piezoelectric layers and subjected to electrical and periodic in-plane mechanical loads. A fiber inclination model is used to predict the effective stiffness matrices of the braided composite laminates. Theoretical formulations are based on higher-order shear deformation plate theory and include piezoelectric effects. Double Fourier series is employed to convert the dynamic governing equations into a linear system of Mathieu-Hill equations from which the boundary points on the unstable regions are determined by Bolotins method. Numerical illustrations are given in both tabular and graphical forms, showing the influence of fiber volume fraction, braiding angle, inclination angle, static load level, applied voltage, and aspect ratio on the dynamic stability of the braided composite plate.
Braided composite materials piezoelectric materials rectangular plate dynamic stability higher-order shear deformation plate theory.
S.Kitipornchai J.Yang T.Yan Y.Xiang
Department of Civil and Architectural ngineering, City University of Hong Kong,Kowloon, Hong Kong, C School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University,PO Box 71,Bundoora, V Department of Civil and Architectural Engineering, City University of Hong Kong,Kowloon, Hong Kong, School of Engineering, University of Western Sydney, Penrith South, NSW 1797, Australia
国际会议
The IJSSD Symposium 2012 on Progress in Structural Stability and Dynamics(2012国际结构稳定与动力学进展会议)
南京
英文
94-100
2012-04-14（万方平台首次上网日期，不代表论文的发表时间）