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Digital material representation and testing of metal foams

journal contribution
posted on 2014-01-01, 00:00 authored by C Yang, Eileen An, M Tort, Peter HodgsonPeter Hodgson
In recent years, metal foams are becoming more and more popular due to their high energy absorption ability and low density, which are being widely used in automotive engineering and aerospace engineering. As a design guide, foams can be characterised by several main geometric parameters, such as pore size, pore shape, spatial distribution and arrangement and so on. Considering most foam materials have random distributions of cell size and cell shape, the digital material representation and modelling of such materials become more complex. Cell size and shape effects on mechanical behaviours of metal foams have been found and investigated numerically and experimentally in authors' previous studies in which the authors have developed a digital framework for the representation, modelling and evaluation of multi-phase materials including metal foams. In this study, 2-/3-D finite element models are both developed to represent metal foams with random cell distributions and then a series of digital testing are simulated to investigate the mechanical behaviours of such foams. For validation and verification purpose, the results obtained from 2-/3-D models have been compared and good agreement has been found which demonstrated the effectiveness of the digital framework developed for metal forms. © (2014) Trans Tech Publications, Switzerland.

History

Journal

Applied mechanics and materials

Volume

553

Pagination

54 - 59

Publisher

Trans Tech Publications

Location

Stafa-Zurich, Switzerland

ISSN

1660-9336

eISSN

1662-7482

ISBN-13

9783038350682

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2014, Trans Tech Publications

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