SYMPOSIA PAPER Published: 01 January 1997

Amplitude-Dependent Material Damping—Old Beliefs and New Facts: Working Toward a Synthesizing Model


A study is underway to achieve a reasonably general model for amplitude-dependent material damping. This paper illustrates the conclusions we have reached so far.

Conventional, firmly held convictions, not corroborated by subsequently produced experimental evidence, are listed and discussed. The main phenomenological features of the experimental results and the aspects common to many instances are briefly outlined. Interesting similarities between dislocation damping and other damping sources are pointed out. A line of interpretation of the updated phenomenology in the framework of a “moties-pinners” model is suggested. The prospect of an “equivalent pinned string” of a generic moty is also advanced. Lastly, some fractal features of the amplitude-dependent damping are cited.

Author Information

Gelli, D
CNA/TEMPE, Milano, Italy
Olzi, E
CNA/TEMPE, Milano, Italy
Price: $25.00
Contact Sales
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Developed by Committee: E28
Pages: 302–312
DOI: 10.1520/STP11757S
ISBN-EB: 978-0-8031-5362-2
ISBN-13: 978-0-8031-2417-2