**Article details**

**Title: **Solid Topology Optimization Using Truss Lattices for Low Volume Fraction

**Author(s): ***Mihai-Victor Pricop* *Marian Bunea*

**Abstract: **This paper presents the development, results and conclusions obtained with a solid topology optimization code, using truss lattices as an alternative to continuum elements, applied for low volume fractions. Truss elements are used for the simplicity of the implementation in a new code, in all aspects: boundary conditions, loadings, elemental stiffness matrix. Blocked structures, well posed mechanical equilibrium problems are assured by a proper truss arrangement, lattice driven, similar to structured or unstructured meshing. Relevant conclusions about structured, unstructured and filtering are considered.

**Keywords: **topology optimization, SIMP, truss lattice, FEM, optimality criteria.

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