Computational Technology Resources - CCC

M. Tuna^1,2, P. Trovalusci¹ and N. Fantuzzi²

¹1Department of Structural and Geotechnical Engineering, Sapienza University of Rome, Italy
²Department of Civil, Chemical, Environmental, and Materials Engineering, University of Bologna, Italy

doi:10.4203/ccc.5.5.4

M. Tuna, P. Trovalusci, N. Fantuzzi, "The effect of non-locality (or size-dependency) on optimum topologies (or material layouts)", in P. Iványi, J. Logo, B.H.V. Topping, (Editors), "Proceedings of the Sixth International Conference on Soft Computing, Machine Learning and Optimisation in Civil, Structural and Environmental Engineering", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 5, Paper 5.4, 2023, doi:10.4203/ccc.5.5.4

Keywords: non-local, micropolar, Eringen, SIMP, optimization, finite element method.

Abstract

The current work aims to generalize topology optimization problem to scaledependent two-dimensional plates regarding micropolar and Eringen’s theory of elasticity. The material distribution maximizing the structural stiffness are obtained in the framework of solid isotropic material penalization approach, accompanied by density filter and Heaviside projection in order to ensure mesh independent binary solutions. The computational cost is reduced by integrating an element removal and re-introduction strategy. Several benchmark problems are investigated under the assumption of linear elasticity to clearly demonstrate the influence of internal length and different non-locality mechanism on final optimum configurations.

download the full-text of this paper (PDF, 10 pages, 514 Kb)

go to the previous paper
return to the table of contents
return to the volume description

	Computational & Technology Resources an online resource for computational, engineering & technology publications
	not logged in - login
Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 5 PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON SOFT COMPUTING, MACHINE LEARNING AND OPTIMISATION IN CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING Edited by: P. Iványi, J. Logo and B.H.V. Topping Paper 5.4 The effect of non-locality (or size-dependency) on optimum topologies (or material layouts) M. Tuna^1,2, P. Trovalusci¹ and N. Fantuzzi² ¹1Department of Structural and Geotechnical Engineering, Sapienza University of Rome, Italy ²Department of Civil, Chemical, Environmental, and Materials Engineering, University of Bologna, Italy doi:10.4203/ccc.5.5.4 Full Bibliographic Reference for this paper M. Tuna, P. Trovalusci, N. Fantuzzi, "The effect of non-locality (or size-dependency) on optimum topologies (or material layouts)", in P. Iványi, J. Logo, B.H.V. Topping, (Editors), "Proceedings of the Sixth International Conference on Soft Computing, Machine Learning and Optimisation in Civil, Structural and Environmental Engineering", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 5, Paper 5.4, 2023, doi:10.4203/ccc.5.5.4 Keywords: non-local, micropolar, Eringen, SIMP, optimization, finite element method. Abstract The current work aims to generalize topology optimization problem to scaledependent two-dimensional plates regarding micropolar and Eringen’s theory of elasticity. The material distribution maximizing the structural stiffness are obtained in the framework of solid isotropic material penalization approach, accompanied by density filter and Heaviside projection in order to ensure mesh independent binary solutions. The computational cost is reduced by integrating an element removal and re-introduction strategy. Several benchmark problems are investigated under the assumption of linear elasticity to clearly demonstrate the influence of internal length and different non-locality mechanism on final optimum configurations. download the full-text of this paper (PDF, 10 pages, 514 Kb) go to the previous paper return to the table of contents return to the volume description
Back to top	©Civil-Comp Limited 2023 - terms & conditions