The newly developed isogeometric B-Rep analysis (IBRA) [Breitenberger et al. 2015]can be considered as a generalization of isogeometric analysis (IGA) that uses the boundary representation (B-Rep) of the CAD model in addition to the same basis functions as in IGA for approximating the solution fields. IBRA provides the framework for creating a direct and complete analysis model from computer aided design (CAD) in a consistent finite-element-like manner. Thus, IBRA allows analyzing a CAD model without remodeling and meshing, even for complex geometries.
A boundary representation describes an object by its “skin” between the “model” and “non-model”. The skin of a three dimensional object is composed of a set of adjacent bounded (trimmed) surface elements called faces.
Industrial Application
CAD model
CAD model
CAD and analysis model
CAD and analysis model
Deformed CAD model (solution)
Deformed CAD model (solution)