CUED Publications database

Mechanical properties of metallic fiber network materials

William Clyne, T and Markaki, AE and Dean, J (2017) Mechanical properties of metallic fiber network materials. In: Comprehensive Composite Materials II. Elsevier, pp. 173-187.

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Abstract

This chapter covers the mechanical properties (elastic, plastic, and fracture-related) of metal fibers assembled and bonded together into a network that can be regarded as a macroscopically homogeneous material. Such materials can be regarded as a special class of metal matrix composite (MMC). Some simple analytical models are described for prediction of these mechanical characteristics, based on the network architecture and the properties of the individual fibers. These models are assessed in terms of reliability via comparisons with experimental data. Most of these relate to material composed of stainless steel fibers about 100 µm in diameter, although various observations are made about scale effects. It is shown that such materials are usually very compliant, which is advantageous in many of the applications for which they can be used, but they can also exhibit relatively high toughness. The latter arises because their fracture often involves considerable plastic deformation of individual fiber segments, absorbing large quantities of energy. In general, these models are fairly reliable and can be of assistance in designing materials of this type for particular applications. Of course, the fiber architecture will also affect various functionalities that might be required, such as thermal, electrical, magnetic, acoustic, and biomedical effects: some of these are described in other chapters in the volume, but this chapter is focused exclusively on mechanical characteristics.

Item Type: Book Section
Uncontrolled Keywords: Elastic constants; Fiber networks; Finite element method (FEM) modeling; Metal fibers; Toughness; X-ray tomography
Subjects: UNSPECIFIED
Divisions: Div C > Biomechanics
Depositing User: Cron Job
Date Deposited: 11 Jan 2018 02:10
Last Modified: 13 Apr 2021 10:00
DOI: 10.1016/B978-0-12-803581-8.10068-2