Concepts of data collection for the CAD-integrated isogeometric analysis

Abstract

This publication presents required steps for the realization of the pre- and post-processing for the isogeometric analysis and the isogeometric B-Rep analysis, with a focus on the collection of required data. It reveals the essential prerequisites for the preparation and the collection of geometrical information, which are merged with physical information for the creation of numerical models. It addresses both the direct computation on existing CAD drawings and the geometrical design during the preparation of the numerical models. The developments are presented through the example of the open source Rhino plugin Cocodrilo, which shall bring IGA to a larger community, including research and industrial facilities.

CAD‐integrated parametric modular construction design

“…Within Figure 3 is displayed an eventual setup of the described design path within Grasshopper and Cocodrilo. 17,18 It shows the respective blocks and numbering from Figure 2 and their relation within the analyses.…”

“…Grasshopper script of the staged analysis by using Cocodrilo. 17,18 the system is sort of separated into two subsystems. The outer ring of modules and the inner part.…”

“…35 The pre-and post-processing have been operated with Cocodrilo. 18 ENDNOTE * If the module boundaries are described within a 2-dimensional parameter space it needs to be ensured that the parameter space of the geometry does not contain any distortions, as otherwise, all segments would have different sizes.…”

“…The analyses have been processed with Kratos Multiphysics 35 . The pre‐ and post‐processing have been operated with Cocodrilo 18 …”

“…Thus, it shapes perfectly within the application in the parametric CAD design environment. The plugin Cocodrilo 17,18 has been developed to specifically enable the simulation of IGA within Grasshopper.…”