Strain gradient plasticity effects in whisker-reinforced metals

Christian Frithiof Niordson

Strain gradient plasticity effects in whisker-reinforced metals

Authors:

Niordson, Christian Frithiof
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0000-0001-6779-8924
Department of Mechanical Engineering, Technical University of Denmark

Abstract:

A metal reinforced by fibers in the micron range is studied using the strain gradient plasticity theory of Fleck and Hutchinson (2001). Cell-model analyzes are used to study the influence of the material length parameters numerically. Different higher order boundary conditions are considered at the fiber-matrix interface. The results are presented as overall stress-strain curves for the whisker-reinforced metal, and also contour plots of effective plastic strain are shown. The strain gradient plasticity theory predicts a significant stiffening effect when compared to conventional models, and a significant decrease in the level of plastic strain.

Type:

Report

Language:

English

Main Research Area:

Science/technology

Submission year:

2002

Publication year:

2002

ID:

2389477697

Strain gradient plasticity effects in whisker-reinforced metals

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