Paper Title:
Numerical Calculation on Flaw Response in Inhomogeneous Media
  Abstract

Ultrasonic methods are used in a wide variety of applications including medical studies, geological mapping, and nondestructive evaluation (NDE) tests. In the field of ultrasonic NDE, it is necessary to treat inverse problems of various types. The objective of this paper is to predict the flaw response in an inhomogeneous solid medium. A mathematical modelling of the testing situation is very valuable for a number of reasons. The modelling helps in developing physical intuition and in the interpretation of tests. Multi-Gaussian Beam (MGB) model is used to represent the incident ultrasonic beam. The effect of ultrasonic attenuation and phase velocity dispersion due to grain scattering is included in the predictions. The variation of received voltage is analyzed against the distance of the flaw from the transducer for different dimensions of a square cylinder void. The effect of variation of mean diameter of the grains on the received voltage for different domain of interest is also studied.

  Info
Periodical
Advanced Materials Research (Volumes 328-330)
Chapter
Chapter 2: Material Science and Technology
Edited by
Liangchi Zhang, Chunliang Zhang and Zichen Chen
Pages
1188-1193
DOI
10.4028/www.scientific.net/AMR.328-330.1188
Citation
G. F. Zheng, B. Wu, C. F. He, "Numerical Calculation on Flaw Response in Inhomogeneous Media", Advanced Materials Research, Vols. 328-330, pp. 1188-1193, 2011
Online since
September 2011
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Price
$32.00
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