Riffnaller-Schiefer, AndreasAugsdörfer, Ursula H.Fellner, Dieter W.B. Bickel and T. Ritschel2015-04-152015-04-152015https://doi.org/10.2312/egsh.20151004We present an isogeometric design and analysis approach based on NURBS-compatible subdivision surfaces. The approach enables the description of watertight free-form surfaces of arbitrary degree, including conic sections and an accurate simulation and analysis based directly on the designed surface. To explore the seamless integration of design and analysis provided by the isogeometric approach, we built a prototype software which combines free-form modelling tools with thin shell simulation tools to offer the designer a wide range of design and analysis instruments.I.3.5 [Computer Graphics]Computational Geometry and Object ModelingPhysically based modeling10.2312/egsh.2015100417-20