Abstract
A macro spline finite shell element is presented. This element is capable of analysing flat plates, folded plate structures, and rectangular frames. Two dimensional cubic B-spline interpolation is used for both membrane and bending behaviour. Kirchhoff's theory is used to describe the bending behaviour of the element. Within the macro element C 2-continuity for in-plane and out-of-plane behaviour is achieved with only three degrees-of-freedom per node. This reduced number of dof results in an analysis tool which is more efficient and versatile than the spline finite strip method. Several numerical examples are included to demonstrate the versatility, accuracy and numerical efficiency of this approach in the transient analysis of thin-walled structures.
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