CUED Publications database

Mechanical and magnetic properties of metal fibre networks, with and without a polymeric matrix

Clyne, TW and Markaki, AE and Tan, JC (2005) Mechanical and magnetic properties of metal fibre networks, with and without a polymeric matrix. Composites Science and Technology, 65. pp. 2492-2499. ISSN 0266-3538

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Abstract

Bonded networks of metal fibres are highly porous, permeable materials, which often exhibit relatively high strength. Material of this type has been produced, using melt-extracted ferritic stainless steel fibres, and characterised in terms of fibre volume fraction, fibre segment (joint-to-joint) length and fibre orientation distribution. Young's moduli and yield stresses have been measured. The behaviour when subjected to a magnetic field has also been investigated. This causes macroscopic straining, as the individual fibres become magnetised and tend to align with the applied field. The modeling approach of Markaki and Clyne, recently developed for prediction of the mechanical and magneto-mechanical properties of such materials, is briefly summarised and comparisons are made with experimental data. The effects of filling the inter-fibre void with compliant (polymeric) matrices have also been explored. In general the modeling approach gives reliable predictions, particularly when the network architecture has been characterised using X-ray tomography. © 2005 Published by Elsevier Ltd.

Item Type: Article
Uncontrolled Keywords: Elastic constants Ferromagnetism Magneto-mechanical actuation Metal fibres X-ray tomography
Subjects: UNSPECIFIED
Divisions: Div C > Materials Engineering
Div C > Biomechanics
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:22
Last Modified: 12 Dec 2014 19:04
DOI: 10.1016/j.compscitech.2005.05.037