Document Detail

Stiffness evaluation of contacting surfaces by bulk and interface waves.
MedLine Citation:
PMID:  17967470     Owner:  NLM     Status:  MEDLINE    
This paper describes ultrasonic measurements of normal and tangential stiffnesses of the contacting interface between polished aluminum blocks subjected to nominal contact pressures up to about 3.8 MPa. These stiffnesses were evaluated by ultrasonic spectroscopy methods for the bulk (longitudinal and transverse) wave reflection coefficients and the anti-symmetric mode interface wave velocity. The measurements revealed the interfacial stiffnesses as functions of the frequency as well as the applied contact pressure. The ratio of the tangential and normal stiffnesses is discussed in the light of foregoing theoretical and experimental findings. Furthermore, possible explanations for the frequency dependence of the measured stiffnesses are reviewed, invoking the spatial inhomogeneity of the interfacial stiffness as well as its lossy nature.
Shiro Biwa; Shunsuke Hiraiwa; Eiji Matsumoto
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-09-26
Journal Detail:
Title:  Ultrasonics     Volume:  47     ISSN:  1874-9968     ISO Abbreviation:  Ultrasonics     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2007-11-16     Completed Date:  2007-12-21     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0050452     Medline TA:  Ultrasonics     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  123-9     Citation Subset:  IM    
Graduate School of Energy Science, Kyoto University, Kyoto 606-8501, Japan.
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MeSH Terms
Computer Simulation
Image Interpretation, Computer-Assisted / methods*
Membranes, Artificial*
Models, Theoretical*
Surface Properties
Ultrasonography / methods*
Reg. No./Substance:
0/Membranes, Artificial

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