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H. Shi¹ and F.J. Montans Leal^1,2

¹Escuela Técnica Superior de Ingeniería Aeronáutica y del Espacio, Universidad Politécnica de Madrid, Spain
²Department of Mechanical and Aerospace Engineering, University of Florida, Florida, USA

doi:10.4203/ccc.9.4.3

H. Shi, F.J. Montans Leal, "Topology Optimization of Strain Energy Constrained 2D Elasto-Plastic Truss", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Computational Structures Technology", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 9, Paper 4.3, 2024, doi:10.4203/ccc.9.4.3

Keywords: topology optimization, energy absorption, elasto-plasticity, truss, strain energy, evolutionary structural optimization.

Abstract

Topology optimization in energy-absorbing structures, particularly in the context of elasto-plastic truss elements, presents a crucial avenue for engineering innovation. This paper extends from a one-dimensional toy model to a two-dimensional perfect elasto-plastic truss structure based on evolutionary structural optimization, examining diverse design variables, optimization strategies, structural sizes, and responses to energy absorption thresholds. This study reveals the superiority of certain design variables and optimization strategies, while highlighting challenges such as size dependency and mesh sensitivity. Furthermore, we unveil the nuanced impact of different energy distribution strategies on final topology structures. This work not only enriches our understanding of topology optimization for energy absorption but also inspired for future research and refinement in this domain.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 9 PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: P. Iványi, J. Kruis and B.H.V. Topping Paper 4.3 Topology Optimization of Strain Energy Constrained 2D Elasto-Plastic Truss H. Shi¹ and F.J. Montans Leal^1,2 ¹Escuela Técnica Superior de Ingeniería Aeronáutica y del Espacio, Universidad Politécnica de Madrid, Spain ²Department of Mechanical and Aerospace Engineering, University of Florida, Florida, USA doi:10.4203/ccc.9.4.3 Full Bibliographic Reference for this paper H. Shi, F.J. Montans Leal, "Topology Optimization of Strain Energy Constrained 2D Elasto-Plastic Truss", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Computational Structures Technology", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 9, Paper 4.3, 2024, doi:10.4203/ccc.9.4.3 Keywords: topology optimization, energy absorption, elasto-plasticity, truss, strain energy, evolutionary structural optimization. Abstract Topology optimization in energy-absorbing structures, particularly in the context of elasto-plastic truss elements, presents a crucial avenue for engineering innovation. This paper extends from a one-dimensional toy model to a two-dimensional perfect elasto-plastic truss structure based on evolutionary structural optimization, examining diverse design variables, optimization strategies, structural sizes, and responses to energy absorption thresholds. This study reveals the superiority of certain design variables and optimization strategies, while highlighting challenges such as size dependency and mesh sensitivity. Furthermore, we unveil the nuanced impact of different energy distribution strategies on final topology structures. This work not only enriches our understanding of topology optimization for energy absorption but also inspired for future research and refinement in this domain. download the full-text of this paper (PDF, 10 pages, 1332 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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