Vol. 4, No. 4, 2009

Download this article
Download this article For screen
For printing
Recent Issues

Volume 18
Issue 3, 293–425
Issue 2, 143–291
Issue 1, 1–141

Volume 17, 5 issues

Volume 16, 5 issues

Volume 15, 5 issues

Volume 14, 5 issues

Volume 13, 5 issues

Volume 12, 5 issues

Volume 11, 5 issues

Volume 10, 5 issues

Volume 9, 5 issues

Volume 8, 8 issues

Volume 7, 10 issues

Volume 6, 9 issues

Volume 5, 6 issues

Volume 4, 10 issues

Volume 3, 10 issues

Volume 2, 10 issues

Volume 1, 8 issues

The Journal
About the Journal
Editorial Board
Subscriptions
 
Submission Guidelines
Submission Form
Policies for Authors
Ethics Statement
 
ISSN: 1559-3959
Author Index
To Appear
 
Other MSP Journals
Acoustic emission from a surface-breaking crack in a layer under cyclic loading

Jan D. Achenbach

Vol. 4 (2009), No. 4, 649–657
Abstract

An isotropic, homogeneous, elastic layer is subjected to a time-harmonic tensile stress of constant amplitude parallel to the free surfaces. The cyclic stresses are assumed to generate a surface-breaking crack of length l(t) which propagates normally to the top surface of the layer. The unloading of the crack faces generates acoustic emission, which is composed of Lamb waves. The elastodynamic reciprocity theorem for time-harmonic waves is used to determine the amplitudes of the radiated system of time-harmonic Lamb waves.

Keywords
layer, crack, cyclic loading, acoustic emission, reciprocity theorem
Milestones
Received: 18 December 2007
Accepted: 4 March 2008
Published: 7 August 2009
Authors
Jan D. Achenbach
Center for Quality Engineering and Failure Prevention
Northwestern University
2137 N. Tech Drive
Evanston, IL 60208
United States
http://www.mech.northwestern.edu/web/people/faculty/achenbach.php