Nonlinear air-coupled emission: The signature to reveal and image microdamage in solid materials
- Department of Non-Destructive Testing (IKT-ZfP), Institute of Polymer Technology, University of Stuttgart, 70569 Stuttgart (Germany)
It is shown that low-frequency elastic vibrations of near-surface planar defects cause high-frequency ultrasonic radiation in surrounding air. The frequency conversion mechanism is concerned with contact nonlinearity of the defect vibrations and provides efficient generation of air-coupled higher-order ultraharmonics, ultrasubharmonics, and combination frequencies. The nonlinear air-coupled ultrasonic emission is applied for location and high-resolution imaging of damage-induced defects in a variety of solid materials.
- OSTI ID:
- 21016223
- Journal Information:
- Applied Physics Letters, Vol. 91, Issue 25; Other Information: DOI: 10.1063/1.2827193; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Damage imaging in a laminated composite plate using an air-coupled time reversal mirror
Flaw detection in a multi-material multi-layered composite: using fem and air-coupled ut
Local Environment and Interactions of Liquid and Solid Interfaces Revealed by Spectral Line Shape of Surface Selective Nonlinear Vibrational Probe
Journal Article
·
Tue Nov 03 00:00:00 EST 2015
· Applied Physics Letters
·
OSTI ID:21016223
+3 more
Flaw detection in a multi-material multi-layered composite: using fem and air-coupled ut
Journal Article
·
Thu Jun 23 00:00:00 EDT 2011
· AIP Conference Proceedings
·
OSTI ID:21016223
+1 more
Local Environment and Interactions of Liquid and Solid Interfaces Revealed by Spectral Line Shape of Surface Selective Nonlinear Vibrational Probe
Journal Article
·
Thu Nov 10 00:00:00 EST 2016
· Journal of Physical Chemistry. C
·
OSTI ID:21016223
+2 more