TY - EJOU AU - Bartle, N.J. AU - Gosling, P.D. TI - Numerical Formulations for the Prediction of Deformation, Strain and Stress of Un-patterned ETFE Cushions T2 - Computers, Materials \& Continua PY - 2010 VL - 20 IS - 1 SN - 1546-2226 AB - ETFE cushions are increasingly being used to form high-profile facades and structural forms. This investigation aims to extend an analytical theory of large deformation in order to predict the shape and stress distributions of an un-patterned square ETFE cushion without the need to resort to discretised numerical methods. In order to assess the validity of the theoretical procedure a prototype cushion has been analysed using a finite element simulation. The theoretical procedure is also compared with alternative approximate equations proposed for the design of ETFE cushions. KW - ETFE KW - pneumatic KW - cushion KW - form finding KW - analytical solution DO - 10.3970/cmc.2010.020.019