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Structural and Multidisciplinary Optimization

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01-07-2010 | Research Paper

Topology optimization of truss-like continua with different material properties in tension and compression

Authors: Osvaldo Maximo Querin, Mariano Victoria, Pascual Martí

Published in: Structural and Multidisciplinary Optimization | Issue 1/2010

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Abstract

The literature on the topology optimization of truss-like continua has relatively few publications that look at the problem of structures with different material properties/behaviour in tension and compression. After reviewing the literature on optimality criteria, ground structure approach, growth method for truss structures, SIMP, homogenization and heuristic methods of topology optimization, a method is proposed in this paper which consists of identifying all negative (compressive) parts of a structure; modifying their modulus of elasticity; changing their material properties to orthotropic, modifying the stresses or strains and satisfying the optimality criterion of a constant stress/strain ratio between the tensile and compressive parts of the structure. The validity of this technique is demonstrated on several examples, including comparisons with results by other methods

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Title: Topology optimization of truss-like continua with different material properties in tension and compression
Authors: Osvaldo Maximo Querin
Mariano Victoria
Pascual Martí
Publication date: 01-07-2010
Publisher: Springer-Verlag
Published in: Structural and Multidisciplinary Optimization / Issue 1/2010
Print ISSN: 1615-147X
Electronic ISSN: 1615-1488
DOI: https://doi.org/10.1007/s00158-009-0473-2

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