22 citations · 127 across the 17 of their papers we have counts for
3 papers · 1 filter
Fractal analysis of weld defect patterns obtained by radiographic tests
J. A. Tesser, R. T. Lopes, A. P. Vieira +2
This paper presents a fractal analysis of radiographic patterns obtained from specimens with three types of inserted welding defects: lack of fusion, lack of penetration, and poros…
Characterization of welding defects by fractal analysis of ultrasonic signals
A. P. Vieira, E. P. de Moura, L. L. Goncalves +1
In this work we apply tools developed for the study of fractal properties of time series to the problem of classifying defects in welding joints probed by ultrasonic tecniques. We…
Characterization of Failure Mechanism in Composite Materials Through Fractal Analysis of Acoustic Emission Signals
F. E. Silva, L. L. Goncalves, D. B. B. Fereira +1
In this paper it is presented a detailed numerical investigation of acoustic emission signals obtained from test samples of fibreglass reinforced polymeric matrix composites, when…