| Title |
Topology Optimization of Shell Structures using Isogeometric Concept |
| DOI |
https://doi.org/10.5659/JAIK.2026.42.5.357 |
| Keywords |
Shell Structure; Isogeometric Concept; Topology Optimization; NURBS; Node-wise Material Density Function |
| Abstract |
This study presents a novel approach by incorporating the isogeometric concept into the topology optimization of shell structures. Utilizing
the Kirchhoff-Love theory, the isogeometric shell element provides a rigorous framework for analyzing the linear elastic behavior of shells
subjected to static loads. The present method uses Non-uniform Rational B-splines (NURBS) to accurately construct both geometric and
analysis models. A node-wise updating scheme is implemented to redistribute materials within the shell structures, to find the layouts that
improve structural performance with less materials. Four numerical tests prove that the proposed isogeometric topology optimization procedure
is highly effective and efficient in determining the optimal topology of shell structures, thereby contributing to advancements in curved shell
design practices. |