Georges, Hussam ; García Solera, Diego ; Aguilar Borasteros, Carlos ; Metar, Mohmad ; Song, Gyeongseob ; Mandava, Rahul ; Becker, Wilfried ; Mittelstedt, Christian (2024)
Mechanical Performance Comparison of Sandwich Panels with Graded Lattice and Honeycomb Cores.
In: Biomimetics, 2024, 9 (2)
doi: 10.26083/tuprints-00027163
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
The design of graded and multifunctional lattice cores is driven by the increasing demand for high-performance components in lightweight engineering. This trend benefits from significant achievements in additive manufacturing, where the lattice core and the face sheets are fabricated simultaneously in a single print job. This work systematically compares the mechanical performance of sandwich panels comprising various graded lattice cores subjected to concentrated loads. In addition to graded lattice cores, uniform lattices and conventional honeycomb cores are analyzed. To obtain an optimized graded lattice core, a fully stressed design method is applied. Stresses and displacements are determined using a linear elastic analytical model that allows grading the core properties in a layerwise manner through the core thickness. The analysis indicates the superior performance of graded lattice cores compared to homogeneous lattice cores. However, conventional honeycombs outperform graded lattice cores in terms of load-to-weight ratio and stiffness-to-weight ratio. This study provides valuable insights for the design of lattice core sandwich panels and the advantages of several design approaches.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Georges, Hussam ; García Solera, Diego ; Aguilar Borasteros, Carlos ; Metar, Mohmad ; Song, Gyeongseob ; Mandava, Rahul ; Becker, Wilfried ; Mittelstedt, Christian |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Mechanical Performance Comparison of Sandwich Panels with Graded Lattice and Honeycomb Cores |
| Sprache: | Englisch |
| Publikationsjahr: | 13 Mai 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 6 Februar 2024 |
| Ort der Erstveröffentlichung: | Basel |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Biomimetics |
| Jahrgang/Volume einer Zeitschrift: | 9 |
| (Heft-)Nummer: | 2 |
| Kollation: | 18 Seiten |
| DOI: | 10.26083/tuprints-00027163 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/27163 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | The design of graded and multifunctional lattice cores is driven by the increasing demand for high-performance components in lightweight engineering. This trend benefits from significant achievements in additive manufacturing, where the lattice core and the face sheets are fabricated simultaneously in a single print job. This work systematically compares the mechanical performance of sandwich panels comprising various graded lattice cores subjected to concentrated loads. In addition to graded lattice cores, uniform lattices and conventional honeycomb cores are analyzed. To obtain an optimized graded lattice core, a fully stressed design method is applied. Stresses and displacements are determined using a linear elastic analytical model that allows grading the core properties in a layerwise manner through the core thickness. The analysis indicates the superior performance of graded lattice cores compared to homogeneous lattice cores. However, conventional honeycombs outperform graded lattice cores in terms of load-to-weight ratio and stiffness-to-weight ratio. This study provides valuable insights for the design of lattice core sandwich panels and the advantages of several design approaches. |
| Freie Schlagworte: | sandwich panels, 3D lattice core, honeycomb core, fully stressed design, graded core, design for additive manufacturing |
| ID-Nummer: | Artikel-ID: 96 |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-271635 |
| Zusätzliche Informationen: | This article belongs to the Special Issue Bionic Design & Lightweight Engineering |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 570 Biowissenschaften, Biologie 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Institut für Leichtbau und Strukturmechanik (LSM) |
| Hinterlegungsdatum: | 13 Mai 2024 12:33 |
| Letzte Änderung: | 14 Mai 2024 07:03 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Mechanical Performance Comparison of Sandwich Panels with Graded Lattice and Honeycomb Cores. (deposited 13 Mai 2024 12:33) [Gegenwärtig angezeigt]
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