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Topology Optimization of Element Removal Method Using Stress Density  

임오강 (부산대학교 기계공학부)
이진식 (경기공업대학 컴퓨터응용설계계열)
김창식 (부산대학교 기계설계공학과 대학원)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.16, no.1, 2003 , pp. 1-8 More about this Journal
Abstract
Topology optimization has been evolved into a very efficient conceptual design tool and has been utilized into design engineering processes. Traditional topology optimization has been using homogenization method and optimality criteria method. homogenization method provides relationship equation between structure which includes many holes and stiffness matrix in FEM. Optimality criteria method is used to update design variables while maintaining that volume fraction is uniform. Traditional topology optimization has advantage of good convergence but has disadvantage of too much convergency time. In one way to solve this problem, element removal method using the criterion of an average stress is presented. As the result of examples, it is certified that convergency time is very reduced.
Keywords
topology; homeogenization method; optimality criteria method; element removal method;
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