Publicacións

@article{villalba_topology_2022,

title = {Topology optimization of structures considering minimum weight and stress constraints by using the Overweight Approach},

author = {Diego Villalba and José París-López and Iván Couceiro-Aguiar and Ignasi Colominas-Ezponda and Fermín Navarrina-Martínez},

url = {https://www.sciencedirect.com/science/article/pii/S0141029622011476},

doi = {10.1016/j.engstruct.2022.115071},

issn = {0141-0296},

year  = {2022},

date = {2022-12-01},

urldate = {2026-08-07},

journal = {Engineering Structures},

volume = {273},

pages = {115071},

abstract = {In this paper, a new method for structural topology optimization considering minimum weight and local stress constraints is proposed. For this purpose, the Overweight Approach, an improvement of the so-called Damage Approach, is used. In this method, a virtual relative density is defined as a function of the violation of the local stress constraints. The virtual relative density is increased as stresses exceed the maximum allowable value. The optimization algorithm will provide a design with a minimal variation of the relative density. The structural analysis is performed by means of the Finite Element Method (FEM) and the distribution of material is modelled in terms of a uniform relative density within each element. Moreover, the optimization is addressed by means of the Sequential Linear Programming algorithm (SLP). Finally, the proposed methodology is tested by means of some benchmark problems, and the results show that the Overweight Approach is a feasible alternative for the Damage Approach and the stress constraint aggregation techniques.},

keywords = {Aggregation techniques, Finite element method, overweight approach, Stress constraint, Structural topology optimization},

pubstate = {published},

tppubtype = {article}

}