Fracture of open-cell foams: A discrete modelling approach

K. R. Mangipudi, P. R. Onck*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

A discrete model based on two-dimensional Voronoi tessellation has been used to study damage and fracture in open-cell metal foams. The present study focuses on elastic-fracture behaviour of the foam. A competition mechanism among various damaging struts leading to damage localization and formation of a fracture band has been observed. The effect of relative density is presented in terms of scaling relationships for the peak stress and peak strain are presented here. Finally the detrimental effect of the effect of the presence of the precipitates will be studied as well, showing a severe knock-down in the strength and ductility.

Original languageEnglish
Title of host publicationIUTAM SYMPOSIUM ON MECHANICAL PROPERTIES OF CELLULAR MATERIALS
EditorsH Zhao, NA Fleck
Place of PublicationDORDRECHT
PublisherSpringer
Pages105-113
Number of pages9
ISBN (Print)978-1-4020-9403-3
Publication statusPublished - 2007
EventIUTAM Symposium on Mechanical Properties of Cellular Materials - , France
Duration: 17-Sept-200720-Sept-2007

Publication series

NameIUTAM Bookseries
PublisherSPRINGER
Volume12

Other

OtherIUTAM Symposium on Mechanical Properties of Cellular Materials
Country/TerritoryFrance
Period17/09/200720/09/2007

Keywords

  • CELL ALUMINUM FOAM

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