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Integration of design and simulation of CAD surfaces
In computer-aided design (CAD), geometric shapes are described by boundary information given in terms of spline surfaces and topological relations. The success of this concept in CAD
is closely connected to the trimming paradigm, which significantly increases the flexibility of the method to represent complex arbitrary shapes in 3D. CEGE researchers established an integrated design-through-analysis workflow that allows the seamless interaction between structural design based on trimmed CAD surfaces and deformation and stress analysis with shell finite elements, where coupling conditions are imposed variationally. This new technology extends recent developments in isogeometric and embedded domain finite element methods. The resulting new integrated design and simulation framework can be expected to reduce the effort for transferring a CAD
design model into an analysis-suitable simulation model by up to 80%. [75]
