2021 Volume 77 Issue 2 Pages I_251-I_262
The region-wise zig-zag theory, which combines the improved zig-zag theory and layer-wise theory, has been developed. In this theory, it is easy to apply to delamination analysis and to structures composed of composite materials and isotropic materials, and the unknown degree of freedom is considerably smaller than that of the layer-wise theory. In this study, it is proposed to use virtual laminas for this theory in order to improve the applicability and efficiency of this theory. The accuracy and applicability of the region-wise zig-zag theory using the virtual laminas have been verified by using numerical examples of bending analysis of isotropic and anisotropic laminated plates.
