@Article{cmes.2012.086.053,
AUTHOR = {Yixian  Du, De  Chen},
TITLE = {Suppressing Gray-Scale Elements in Topology Optimization of Continua Using Modified Optimality Criterion Methods},
JOURNAL = {Computer Modeling in Engineering \& Sciences},
VOLUME = {86},
YEAR = {2012},
NUMBER = {1},
PAGES = {53--70},
URL = {http://www.techscience.com/CMES/v86n1/25857},
ISSN = {1526-1506},
ABSTRACT = {This study proposes a new topology optimization method for continuum structures, which includes modified heuristic optimality criteria in conjunction with the SIMP scheme to suppress gray-scale elements occurred in topology optimization of continua through smoothed Heaviside function. In the process of numerical implementation, the gray scale elements are suppressed to approach the binary bounds of 0 or 1 by utilizing the proposed approach and the corresponding convergence criterion. Two typical numerical examples are used to demonstrate the effectiveness of the proposed method in suppressing the gray-scale elements with intermediate densities, as well as the efficiency of this method in the numerical procedure.},
DOI = {10.3970/cmes.2012.086.053}
}