Avalanche dynamics in crumpled aluminum thin foils

Uniaxial compression of crumpled aluminum thin foils with different relative densities was studied using an acoustic emission (AE) technique. The AE signal analysis reveals a power law linking the probable density and amplitudes of acoustic events, proving an avalanche dynamics of plastic deformatio...

Full description

Saved in:

Bibliographic Details
Published in:	Scripta materialia Vol. 99; pp. 17 - 20
Main Authors:	Abobaker, M., Bouaziz, O., Lebyodkin, M., Lebedkina, T., Shashkov, I.V.
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 01-04-2015 Elsevier
Subjects:	Acoustic Aluminum Amplitudes Avalanches Cellular materials Chemical Sciences Crumpled materials Density Dissipation Dynamics Engineering Sciences Foils Material chemistry Plastic deformation Self-organization Cellular materials Crumpled materials Plastic deformation Acoustic Self-organization
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Uniaxial compression of crumpled aluminum thin foils with different relative densities was studied using an acoustic emission (AE) technique. The AE signal analysis reveals a power law linking the probable density and amplitudes of acoustic events, proving an avalanche dynamics of plastic deformation. The exponent found for the distributions of squared amplitudes that reflect the dissipated mechanical energy places the observed behavior among those found previously for bulk samples of various pure materials.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1359-6462 1872-8456
DOI:	10.1016/j.scriptamat.2014.11.016