Shape: (A membrane shape-finding program for tension structures)

This paper describes a complete three-dimensional finite element package suitable for the design and analysis of membrane and pneumatic structures. It utilises both the linear two-node element as well as the three-node triangular flat membrane element formulated using the natural mode technique. Various non-linear iteration schemes are implemented to cater for possible different convergence rates in specific application of the program. The package includes a triangular mesh generation pre-processor and a post-processor plotting routine for viewing of the final structure form