Starting from challenges encountered by the industrial partners and known shortcomings of current shape representations in design and analysis we have defined the following 6 work packages:
WP1: Correctness and conformity check of CAD-models.
WP2: Repair of CAD-models
WP3: Creation of iso-geometric CAD-representation from STEP type CAD-model
WP4: Generation of traditional FEM-model from ISO-geometric CAD-representation
WP5: Generation of iso-geometric elements from iso-geometric CAD-model
WP6: Extension of analysis packages by iso-geometric elements
Advanced industries is to a great extent hampered in their daily activities by the time consuming processes required for performing non-standard analysis in product design. Performing analysis on a CAD-mode ls and updating the CAD-model are both processes that frequently require substantial manual intervention. A major obstacle in the integration of design and analysis is mismatch in quality parameters in design and analysis shape models. A CAD-model has hig h quality shape description of the inner and outer hulls but inaccurate volumetric description. An analysis model has in general low quality inner and outer hull shape description but high a complete volumetric description. To go from design to analysis t he surface quality is in general downgraded, while the volumetric description is improved. The analysis is consequently performed on a rougher geometric shape than the design model, and consequently feedback from analysis to design is complex.
The projec t aims at generating an efficient path from CAD to iso-geometric analysis, and to demonstrate the potential of iso-geometric analysis. The six research challenges addressed above will be addressed. The result of the project is expected to be knowledge and software prototypes addressing CAD-model repair, iso-geometric representation of shape and examples iso-geometric analysis based on iso-geometric integration of design and analysis.