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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

verfasst von: Osvaldo Maximo Querin, Mariano Victoria, Pascual Martí

Erschienen in: Structural and Multidisciplinary Optimization | Ausgabe 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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Titel: Topology optimization of truss-like continua with different material properties in tension and compression
verfasst von: Osvaldo Maximo Querin
Mariano Victoria
Pascual Martí
Publikationsdatum: 01.07.2010
Verlag: Springer-Verlag
Erschienen in: Structural and Multidisciplinary Optimization / Ausgabe 1/2010
Print ISSN: 1615-147X
Elektronische ISSN: 1615-1488
DOI: https://doi.org/10.1007/s00158-009-0473-2

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