Fractal analysis of weld defect patterns obtained by radiographic tests

Details Fractal analysis of weld defect patterns obtained by radiographic tests Fractal analysis of weld defect patterns obtained by radiographic tests

2006-12-18

arxiv.org/abs/cond-mat/0612467v1

Physics

Condensed Matter

Materials Science

7 pages, 2 figures. To appear AIP Conference Proceedings - QNDE 2006

Scientific paper

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 porosity. The study focused on patterns of carbon steel beads from radiographs of the International Institute of Welding (IIW). The radiographs were scanned using a greyscale with 256 levels, and the fractal features of the surfaces constructed from the radiographic images were characterized by means of Hurst, detrended-fluctuation, and minimal-cover analyses. A Karhunen-Loeve transformation was then used to classify the curves obtained from the fractal analyses of the various images, and a study of the classification errors was performed. The obtained results indicate that fractal analyses can be an effective additional tool for pattern recognition of weld defects in radiographic tests.

Affiliated with

Also associated with

No associations

Rating

Fractal analysis of weld defect patterns obtained by radiographic tests does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Fractal analysis of weld defect patterns obtained by radiographic tests, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fractal analysis of weld defect patterns obtained by radiographic tests will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-5036