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Simulative Determination of Effective Mechanical Properties for Digitally Generated Foam Geometries

Reder, Martin ORCID iD icon 1; Holland-Cunz, Jana 1,2; Lorson, Paula 2; August, Anastasia 1,2; Nestler, Britta 2
1 Institut für Angewandte Materialien – Mikrostruktur-Modellierung und Simulation (IAM-MMS), Karlsruher Institut für Technologie (KIT)
2 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)

Abstract:

Metal foams constitute a promising and emerging material class in the context of lightweight construction. There exists a variety of different foam topologies, on which resulting mechanical properties depend. To maximize the potential of foams in material use under mechanical load, the present work addresses the question how different geometrical parameters influence the material behaviour. Therefore, an algorithm for digital generation and design of open pore foam structures is presented, that allows to regulate the geometry precisely. A method for retrieving effective mechanical properties from numerical simulations of compression tests in the elastic regime is introduced. Additionally, the representativeness of foam volumes considered for simulations is investigated. This yields a fully digital workflow, which enables the investigation of geometry influence on mechanical properties. This approach is used to conduct simulation studies on generated foam structures with a systematic variation of geometrical parameters. Herein, a range of effective Young's moduli varying by up to a factor of 1.3 for different foam structures at the same porosity is found. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000161120
Veröffentlicht am 01.08.2023
Originalveröffentlichung
DOI: 10.1002/adem.202300340
Scopus
Zitationen: 3
Dimensions
Zitationen: 3
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Computational Materials Science (IAM-CMS)
Institut für Nanotechnologie (INT)
Institut für Angewandte Materialien – Mikrostruktur-Modellierung und Simulation (IAM-MMS)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 30.07.2023
Sprache Englisch
Identifikator ISSN: 1438-1656, 1527-2648
KITopen-ID: 1000161120
HGF-Programm 43.31.01 (POF IV, LK 01) Multifunctionality Molecular Design & Material Architecture
Erschienen in Advanced Engineering Materials
Verlag Deutsche Gesellschaft für Materialkunde e.V. (DGM)
Vorab online veröffentlicht am 23.07.2023
Schlagwörter geometry optimization, metal foams, numerical homogenization, phase-field methods, structure generation
Nachgewiesen in Scopus
Web of Science
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