Journal ArticleDOI
Model for the ultrasonic inspection of rough defects
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TLDR
In this paper, a model for studying the effects of defect surface roughness on ultrasonic signals is described, and the model contains many aspects of a real inspection system, giving predictions of interest to practical ultrasonic non-destructive testing.About:
This article is published in Ultrasonics.The article was published on 1989-03-01. It has received 29 citations till now. The article focuses on the topics: Surface roughness & Ultrasonic testing.read more
Citations
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OtherDOI
Quantitative characterization of micro-topography a bibliography of industrial surface metrology
R.J. Pike,T.R. Thomas +1 more
TL;DR: In this article, the authors propose a 3.3-approximation algorithm for the 3.1-GHz bandit-16.3 GHz frequency bandit model, and
Journal ArticleDOI
Crack Characteristics and Their Importance to NDE
Mika Kemppainen,Iikka Virkkunen +1 more
TL;DR: In this article, a simple procedure is proposed for confirming and demonstrating the representativeness of used flaws, and the available information on es- sential flaw parameters for various NDE techniques is re- viewed.
Journal ArticleDOI
Improved detection of rough defects for ultrasonic nondestructive evaluation inspections based on finite element modeling of elastic wave scattering
TL;DR: A finite element (FE) modeling approach is used to develop a realistic methodology for the prediction of expected backscattering from rough defects and it is observed, significantly, that the total signal amplitude is representative of the information obtained during an inspection.
Journal ArticleDOI
Elastic model for simulating ultrasonic inspection of smooth and rough defects
J.A. Ogilvy,I.D. Culverwell +1 more
TL;DR: In this article, a model for the scattering of ultrasonic waves from smooth and randomly rough defects is presented, which uses Kirchhoff theory and is elastic, such that mode-conversion between compressional and shear waves is included in the formulation.
Journal ArticleDOI
Effect of roughness on imaging and sizing rough crack-like defects using ultrasonic arrays
TL;DR: Roughness can be either beneficial or detrimental to the detectability of a crack-like defect, depending on the defect characteristics, such as length, roughness, correlation length, orientation angle, and array inspection configuration.
References
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Book
The scattering of electromagnetic waves from rough surfaces
Petr Beckmann,Andre Spizzichino +1 more
TL;DR: The scattering of electromagnetic waves from rough surfaces PDF is available at the online library of the University of Southern California as mentioned in this paper, where a complete collection of electromagnetic wave from rough surface books can be found.
Book
Diffraction of elastic waves and dynamic stress concentrations
Chao-Chow Mow,Yih-Hsing Pao +1 more
TL;DR: In this article, the authors systematically present methods of solution for both steady-state and transient loading on various obstacles, and also numerical results of dynamic stress concentration on obstacles of different geometries.
Book
The Analysis of Time Series: Theory and Practice
TL;DR: The aim of this book is to provide an introduction to the subject which bridges the gap between theory and practice, and to make what is rather a difficult subject as understandable as possible.
Journal ArticleDOI
Experimental study of scattering from characterized random surfaces
TL;DR: In this article, an experimental investigation of light scattering from random rough surfaces is described, whose height fluctuations approximately follow Gaussian statistics, are fabricated in photoresist with a metal overcoating, and the effects of multiple scattering are shown to be consistent with the major features of the observations.