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Isogeometric Analysis with Trimmed CAD Models
Author(s) -
Marussig Benjamin
Publication year - 2018
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201800184
Subject(s) - isogeometric analysis , cad , representation (politics) , computer science , computer aided design , mathematics , engineering drawing , finite element method , engineering , structural engineering , politics , political science , law , operating system
Trimmed CAD models are the most popular geometry representation in engineering design, but their direct application to an isogeometric analysis can lead to ill‐conditioned system matrices. An approach is presented that effectively resolves this issue by combining so‐called extended B‐splines with a local refinement procedure.