High frequency parametric mixing in Lamb waves using a time and space varying elastic modulus (Conference Presentation)

2020 ◽  
Author(s):  
Joseph Schneider ◽  
Ting Lu ◽  
Sidhant Tiwari ◽  
Xiating Zou ◽  
Ajit Mal ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
High Frequency ◽  
Lamb Waves ◽  
Time And Space

High Frequency Ultrasonic Measurements

1988 ◽  
Vol 21 (5) ◽  
pp. 133-136
Author(s):  
N Zarsav
Keyword(s):  
High Frequency ◽  
Polymer Coating ◽  
Steel Sheet ◽  
Lamb Waves ◽  
Thin Plates ◽  
Design Features ◽  
Degree Of Cure ◽  
Double Probe ◽  
Ultrasonic Measurements

The use of high frequency ultrasonic Lamb waves to measure the thickness of thin plates and foils, is discussed and the feasibility of their application to the determination of the degree of cure of polymer coating on coated tin plated steel sheet (as used by the food can industry) is evaluated. The paper also discusses briefly the design features of the purpose built precision double probe ultrasonic goniometer used to carry out these measurements.

Asymptotic Expansions of Guided Elastic Waves

1972 ◽  
Vol 39 (2) ◽  
pp. 378-384 ◽  
Author(s):  
B. Rulf ◽  
B. Z. Robinson ◽  
P. Rosenau
Keyword(s):  
Elastic Waves ◽  
High Frequency ◽  
Rayleigh Waves ◽  
Lamb Waves ◽  
Two Dimensions ◽  
Guided Wave ◽  
Curved Surfaces ◽  
Sh Waves ◽  
Free Surfaces ◽  
Wave Problems

The problem of propagation of guided elastic waves near curved surfaces and in layers of nonconstant thickness is investigated. Rigorous solutions for such problems are not available, and a method is shown for the construction of high frequency asymptotic solutions for such problems in two dimensions. The method is applied to Love waves, which are SH-waves in an elastic layer, Rayleigh waves, which are elastic waves guided by a single free surface, and Lamb waves, which are SV-waves guided in a plate or layer with two free surfaces. The procedure shown breaks the second-order boundary-value problems which have to be solved into successions of simpler problems which can be solved numerically. Some numerical examples for Rayleigh waves are carried out in order to demonstrate the utility of our method. The method shown is useful for a large variety of guided wave problems, of which the ones we treat are just examples.

A new high‐frequency analysis of coatings using leaky Lamb waves

1993 ◽  
Vol 94 (5) ◽  
pp. 2954-2962 ◽  
Author(s):  
P.‐C. Xu ◽  
K.‐E. Lindenschmidt ◽  
S. A. Meguid
Keyword(s):  
Frequency Analysis ◽  
High Frequency ◽  
Lamb Waves ◽  
Leaky Lamb Waves

Interpretation of laser-generated low-order Lamb waves for elastic modulus measurements in thin films

Ultrasonics ◽  
1992 ◽  
Vol 30 (2) ◽  
pp. 87-90 ◽  
Author(s):  
Sarah E. Bobbin ◽  
J.W. Wagner ◽  
R.C. Cammarata
Keyword(s):  
Thin Films ◽  
Elastic Modulus ◽  
Lamb Waves ◽  
Low Order

High frequency ultrasound measurements on a translucent thin bioglass, based on Si, Ca, Na: Study of the distribution of elastic modulus

2013 ◽  
Vol 36 (1) ◽  
pp. 75-79 ◽  
Author(s):  
Ahmed Bachar ◽  
Georges Nassar ◽  
Cyrille Mercier ◽  
Franck Bouchart ◽  
Claudine Follet ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
High Frequency ◽  
High Frequency Ultrasound ◽  
Ultrasound Measurements ◽  
Frequency Ultrasound
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