Book•
Nondestructive testing handbook
01 Jan 1959-
TL;DR: The ASNT Industry Handbook as mentioned in this paper contains a section on applications and new information based on computer advances in imaging and data processing, which is intended to be used with a comprehensive NDT text such as volumes from the Nondestructive Testing Handbook series.
Abstract: Intended to be used with a comprehensive NDT text, such as volumes from the Nondestructive Testing Handbook series. This book was upated in 2013 to align. This volume of theNDT Handbook series, contains a section on applications and new information based on computer advances in imaging and data processing. The American Society for Nondestructive Testing (ASNT), the world's largest and Vibration Testing portion of their newly published ASNT Industry Handbook:.
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TL;DR: A review of the state-of-the-art in the condition monitoring of wind turbines can be found in this article, which describes the different maintenance strategies, condition monitoring techniques and methods, and highlights in a table the various combinations of these that have been reported in the literature.
789 citations
TL;DR: In this article, principal component thermography (PCT) is applied to the non-destructive inspection of composite structures, and a simple analytical expression is derived that relates a characteristic time furnished by the decomposition to the flaw depth, providing a basis for flaw depth estimation.
556 citations
TL;DR: A study of three nondestructive testing methods (Ultrasonic Testing, InfraRed Thermography and Speckle Shearing Interferometry, known as Shearography) was carried out on different specific types of composite specimens having a variety of defects as mentioned in this paper.
287 citations
TL;DR: An ultrasonic sensor for monitoring changes in the porosity in metal parts during fabrication on a metal powder bed fusion system is presented and a proposed sensor design, measurement strategy, and future experimental plans are presented.
Abstract: Additive manufacturing techniques can produce complex, high-value metal parts, with potential applications as critical metal components such as those found in aerospace engines and as customized biomedical implants. Material porosity in these parts is undesirable for aerospace parts - since porosity could lead to premature failure - and desirable for some biomedical implants - since surface-breaking pores allows for better integration with biological tissue. Changes in a part’s porosity during an additive manufacturing build may also be an indication of an undesired change in the build process. Here, we present efforts to develop an ultrasonic sensor for monitoring changes in the porosity in metal parts during fabrication on a metal powder bed fusion system. The development of well-characterized reference samples, measurements of the porosity of these samples with multiple techniques, and correlation of ultrasonic measurements with the degree of porosity are presented. A proposed sensor design, measurement strategy, and future experimental plans on a metal powder bed fusion system are also presented.
277 citations
Cites background from "Nondestructive testing handbook"
...Ultrasonic Non-Destructive Testing (NDT) techniques provide a non-damaging means of measuring the properties of solids, and have principal applications for defect detection, part thickness measurements, and determination of material properties such as elastic moduli [9] to a high precision and with low uncertainties [10]....
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...The basic ultrasonic NDT techniques are rapid, have high penetration power and large sensitivity, and generally only require one-sided access to the specimen or material being measured [9]....
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