-
Chapter
Making TTCN-3 testing a success
Now that the TTCN-3 standard has matured, first tools are appearing on the market. But the enhanced capabilities of TTCN-3 can only be fully exploited in a smart, flexible and open test environment. This contr...
-
Chapter
Geometrical Acoustics in a Heterogeneous Anisotropic Elastic Solid: Application to a Wavy Composite
Karal and Keller [1] developed the geometrical acoustics for wave propagation in a heterogeneous isotropic medium, generally adopting the methods used in geometrical optics [2,3]. It is very difficult to find ...
-
Chapter
Applications of SH Mode for Measurement of Anisotropic Properties of Solids
Shear-horizontally (SH) polarized transverse (T) modes are uncoupled from the longitudinal (L) (quasilongitudinal (QL)) mode and transverse (quasitransverse (QT)) mode of shear-vertical (SV) polarization, whic...
-
Article
Introduction to the special issue onRecent developments on microwave NDE research
-
Article
An enhanced, acoustic emission-based, single-fiber-composite test
In the single-fiber-composite (SFC) test, a fiber imbedded in a matrix is loaded in tension, resulting in a fragmentation of the fiber. In the conventional version of this test, the final fiber fragmentation l...
-
Chapter
Imaging of Laser—Generated Ultrasonic Waves in Silicon
This paper reports the results of experiments we have carried out on silicon single crystals using a scanned ultrasonic point—source/point—receiver technique based on laser generation and piezoelectric detection.
-
Chapter
Materials Characterization from Elastic Wave Anisotropy Images
We describe in this paper the use of transient ultrasonic waves to image wave anisotropy effects in single crystal specimens of silicon. The measurements rely on the point-source/point-receiver (PS/PR) technique ...
-
Chapter
Determination of Elastic Constants of Anisotropic Solids from Group Velocity Data
Most determinations of elastic constants of anisotropic solids are based on acoustic wave phase velocity measurements [1,2]. The methods for recovering elastic constants from phase velocity data are fairly str...
-
Chapter
Towards a Quantitative Ultrasonic NDE of Thick Composites
Because composite materials can be designed and fabricated to obtain specific mechanical properties at minimum weight, considerable effort has been placed on the application of thick composite materials to fab...
-
Article
Determination of the Bond Strength of a Metal Coating on a Substrate
This paper reviews the principles and describes new procedures for determining the bond strength of a metal film on a substrate. Considered are mechanical, electrical, acoustical and thermal measurements. Part...
-
Article
Determination of the Bond Strength of a Metal Coating on a Substrate
This paper reviews the principles and describes new procedures for determining the bond strength of a metal film on a substrate. Considered are mechanical, electrical, acoustical and thermal measurements. Part...
-
Chapter and Conference Paper
New Developments for the Ultrasonic Characterization of Materials
This paper summarizes several recent developments which are facilitating new approaches for quantitative ultrasonic measurements whose application is to the characterization of materials. These include the dev...
-
Chapter
Novel Approaches for the Ultrasonic NDE of Thick and other Composites
This paper summarizes several recent developments which are facilitating new approaches for both active and passive quantitative ultrasonic measurements in composite materials. These include the development of...
-
Chapter
Experimental Characterization of Ultrasonic Phenomena by a Neural-Like Learning System
This paper describes a novel approach for analyzing ultrasonic signals to permit an experimental determination of the relations between elastic wave phenomena and the properties of a source of sound in a mater...
-
Chapter
Point-Source/Point-Receiver Materials Testing
Conventional measurements in the ultrasonic testing of materials, when used as the basis of a materials characterization procedure, typically rely on one or two piezoelectric transducers operating as source an...
-
Chapter and Conference Paper
Point-Source/Point-Receiver Materials Testing
Conventional measurements in the ultrasonic testing of materials, when used as the basis of a materials characterization procedure, typically rely on one or two piezoelectric transducers operating as source an...
-
Article
Characteristics of an acoustic emission source from a thermal crack in glass
Thermal cracks of mode I type oriented normal to the surface along an initial scratch were generated by blowing cold nitrogen gas through a small nozzle onto the surface of a glass plate. Acoustic emission (AE...
-
Chapter
Stable Impedance Profile Reconstruction by Spike Train Approximation
This paper describes a procedure for reconstructing the impedence profile of a one-dimensional medium from ultrasonic pulse-echo data. The procedure is based on an extension of the method of characteristics in...
