Hybrid Metal/Composite Lattice Structures: Design for Additive Manufacturing

This paper introduces a numerical tool developed for the design and optimization of axial-symmetrical hybrid composite/metal structures. It is assumed that the defined structures are produced by means of two different processes: Additive Layer Manufacturing (ALM) for the metallic parts and Filament...

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Main Authors: Francesco Di Caprio, Valerio Acanfora, Stefania Franchitti, Andrea Sellitto, Aniello Riccio
Format: Article
Language:English
Published: MDPI AG 2019-06-01
Series:Aerospace
Subjects:
Online Access:https://www.mdpi.com/2226-4310/6/6/71
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author Francesco Di Caprio
Valerio Acanfora
Stefania Franchitti
Andrea Sellitto
Aniello Riccio
author_facet Francesco Di Caprio
Valerio Acanfora
Stefania Franchitti
Andrea Sellitto
Aniello Riccio
author_sort Francesco Di Caprio
collection DOAJ
description This paper introduces a numerical tool developed for the design and optimization of axial-symmetrical hybrid composite/metal structures. It is assumed that the defined structures are produced by means of two different processes: Additive Layer Manufacturing (ALM) for the metallic parts and Filament Winding (FW) for the composite parts. The defined optimization procedure involves two specific software: ANSYS and ModeFrontier. The former is dedicated to the production of the geometrical and FE models, to the structural analysis, and to the post-process, focusing on the definition of the Unit Cells for the modelling of the metal part. The latter is dedicated to the definition of the best design set and thus to the optimization flow management. The core of the developed numerical procedure is the routine based on the Ansys Parametric Design Language (APDL), which allows an automatic generation of any geometrical model defined by a generic design set. The developed procedure is able to choose the best design, in terms of structural performance, changing the lattice metallic parameters (number of unit cells and their topology) and the composite parameters (number of plies and their orientation). The introduced numerical tool has been used to design several hybrid structures configurations. These configurations have been analysed in terms of mechanical behaviour under specific boundary conditions and compared to similar conventional metal structure.
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spelling doaj.art-55f80a4fbc3c4d9c9b9a22e387640f7a2022-12-21T19:30:32ZengMDPI AGAerospace2226-43102019-06-01667110.3390/aerospace6060071aerospace6060071Hybrid Metal/Composite Lattice Structures: Design for Additive ManufacturingFrancesco Di Caprio0Valerio Acanfora1Stefania Franchitti2Andrea Sellitto3Aniello Riccio4CIRA—Italian Aerospace Research Centre, 81043 Capua, ItalyDepartment of Engineering, University of Campania “L. Vanvitelli”, 81031 Aversa, ItalyCIRA—Italian Aerospace Research Centre, 81043 Capua, ItalyDepartment of Engineering, University of Campania “L. Vanvitelli”, 81031 Aversa, ItalyDepartment of Engineering, University of Campania “L. Vanvitelli”, 81031 Aversa, ItalyThis paper introduces a numerical tool developed for the design and optimization of axial-symmetrical hybrid composite/metal structures. It is assumed that the defined structures are produced by means of two different processes: Additive Layer Manufacturing (ALM) for the metallic parts and Filament Winding (FW) for the composite parts. The defined optimization procedure involves two specific software: ANSYS and ModeFrontier. The former is dedicated to the production of the geometrical and FE models, to the structural analysis, and to the post-process, focusing on the definition of the Unit Cells for the modelling of the metal part. The latter is dedicated to the definition of the best design set and thus to the optimization flow management. The core of the developed numerical procedure is the routine based on the Ansys Parametric Design Language (APDL), which allows an automatic generation of any geometrical model defined by a generic design set. The developed procedure is able to choose the best design, in terms of structural performance, changing the lattice metallic parameters (number of unit cells and their topology) and the composite parameters (number of plies and their orientation). The introduced numerical tool has been used to design several hybrid structures configurations. These configurations have been analysed in terms of mechanical behaviour under specific boundary conditions and compared to similar conventional metal structure.https://www.mdpi.com/2226-4310/6/6/71additive manufacturinglattice structurehybrid structurestopological optimization
spellingShingle Francesco Di Caprio
Valerio Acanfora
Stefania Franchitti
Andrea Sellitto
Aniello Riccio
Hybrid Metal/Composite Lattice Structures: Design for Additive Manufacturing
Aerospace
additive manufacturing
lattice structure
hybrid structures
topological optimization
title Hybrid Metal/Composite Lattice Structures: Design for Additive Manufacturing
title_full Hybrid Metal/Composite Lattice Structures: Design for Additive Manufacturing
title_fullStr Hybrid Metal/Composite Lattice Structures: Design for Additive Manufacturing
title_full_unstemmed Hybrid Metal/Composite Lattice Structures: Design for Additive Manufacturing
title_short Hybrid Metal/Composite Lattice Structures: Design for Additive Manufacturing
title_sort hybrid metal composite lattice structures design for additive manufacturing
topic additive manufacturing
lattice structure
hybrid structures
topological optimization
url https://www.mdpi.com/2226-4310/6/6/71
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AT stefaniafranchitti hybridmetalcompositelatticestructuresdesignforadditivemanufacturing
AT andreasellitto hybridmetalcompositelatticestructuresdesignforadditivemanufacturing
AT anielloriccio hybridmetalcompositelatticestructuresdesignforadditivemanufacturing