Conformal Microstructure Synthesis in Trimmed Trivariate Based V-Reps
- Authors
- Hong, Q Youn; Elber, Gershon
- Issue Date
- Nov-2021
- Publisher
- Pergamon Press Ltd.
- Keywords
- Additive manufacturing; Function composition; Heterogeneity; Iso-geometric analysis; Porosity and Lattices; Volumetric trivariate splines
- Citation
- CAD Computer Aided Design, v.140, pp 1 - 11
- Pages
- 11
- Indexed
- SCIE
SCOPUS
- Journal Title
- CAD Computer Aided Design
- Volume
- 140
- Start Page
- 1
- End Page
- 11
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/113772
- DOI
- 10.1016/j.cad.2021.103085
- ISSN
- 0010-4485
1879-2685
- Abstract
- We present a complete microstructure tiling paradigm for V-rep models, or volumetric models consisting of trimmed trivariates. Existing methods (Massarwi et al., 2018) are employed to tile individual primitive tensor product trivariates in a conformal way, only to handle the intersection of the microstructure tiles with the trimming surfaces of the trivariates. One-to-one and two-to-one bridging tiles are then constructed along the trimmed zones, while tile-clipping is completely avoided. The Boolean operation cases of subtraction, intersection and union are considered. The result is a set of, regular in the interior, possibly heterogeneous, trivariates, that defines the whole microstructure arrangement. This result is fully compatible with iso-geometric analysis as well as heterogeneous additive manufacturing. Examples are presented, including of 3D printed heterogeneous microstructures. © 2021 Elsevier Ltd
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