Computational Structural Engineering : An International Journal
- Volume 1 Issue 1
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- Pages.21-29
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- 2001
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- 1598-2378(pISSN)
Topology Optimization of Continuum Structures Using a Nodal Volume Fraction Method
- Lee, Jin-Sik (Division of Computer Aided Design, Jig & Fixture, Kyonggi Institute of Technology) ;
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Lim, O-Kaung
(Department of Mechanical Engineering, Pusan National University)
- Published : 2001.03.01
Abstract
The general topology optimization can be considered as optimal material distribution. Such an approach can be unstable, unless composite materials are introduced. In this research, a nodal volume fraction method is used to obtain the optimum topology of continuum structures. This method is conducted from a composite material model composed of isotropic matter and spherical void. Because the appearance of the chessboard patterns makes the interpretation of the optimal material layout very difficult, this method contains a chessboard prevention strategy. In this research, several topology optimization problems are presented to demonstrate the validity of the present method and the recursive quadratic programming algorithm is used to solve the topology optimization problems.
Keywords
- topology optimization;
- nodal volume fraction method;
- continuum structures;
- chessboard patterns;
- recursive quadratic programming algorithm