@Article{cmes.2025.066676,
AUTHOR = {Jiazheng Du, Ju Chen, Hongling Ye, Bing Lin, Zhichao Guo},
TITLE = {Smooth Boundary Topology Optimization—A New Framework for Movable Morphable Smooth Boundary Method},
JOURNAL = {Computer Modeling in Engineering \& Sciences},
VOLUME = {144},
YEAR = {2025},
NUMBER = {1},
PAGES = {791--809},
URL = {http://www.techscience.com/CMES/v144n1/63290},
ISSN = {1526-1506},
ABSTRACT = {The traditional topology optimization method of continuum structure generally uses quadrilateral elements as the basic mesh. This approach often leads to jagged boundary issues, which are traditionally addressed through post-processing, potentially altering the mechanical properties of the optimized structure. A topology optimization method of Movable Morphable Smooth Boundary (MMSB) is proposed based on the idea of mesh adaptation to solve the problem of jagged boundaries and the influence of post-processing. Based on the ICM method, the rational fraction function is introduced as the filtering function, and a topology optimization model with the minimum weight as the objective and the displacement as the constraint is established. A triangular mesh is utilized as the base mesh in this method. The mesh is re-divided in the optimization process based on the contour line, and a smooth boundary parallel to the contour line is obtained. Numerical examples demonstrate that the MMSB method effectively resolves the jagged boundary issues, leading to enhanced structural performance.},
DOI = {10.32604/cmes.2025.066676}
}