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Want to know how CIVA UT Analysis software and specific Plug-In development can help you optimize and drastically reduce time for the analysis of a large amount of data, read this paper from Roman Fernandez, presented at ECNDT 2018 and dealing with automatic analysis and weld indications classification on TFM acquisitions

Ocean Breeze Energy GmbH & Co. KG is owner and operator of the windfarm, BARD Offshore 1 (BO1), approx. 100 km off the German North Sea Coast. This windfarm is made up of 80 wind energy generators from the 5 megawatt class, which reaches a rated power capacity of 400 megawatts. NDT inspections were performed and shall be performed on cross welded beams of the BARD1 Offshore wind park. These inspections are achieved with the Total Focusing Method ultrasonic measurement (TFM) using a Gekko system (developed by M2M Company). Consequently, an amount of acquisition files representing approximately 7 Km of measurements must be analyzed in a very short time, which is quite challenging. In this framework, specific improvements in the CIVA Analysis software were performed in order to automate this work as much as possible to classify the indications in weld seams and auto-generate a table of indications presenting all the relevant information according to the inspection procedure. This article aims at presenting the specific developments that were achieved on CIVA UT Analysis software and the results of the automatic analysis and weld indications classification.

To read the full article, you can visit our article library here.

The EXTENDE team

For those interested in TFM applications and its validation in CIVA, read this paper from Dr. Souad BANNOUF, presented at ECNDT 2018 and dealing with the characterization of planar defects in a circular weld with TFM.

This paper reports results from a feasibility study carried out by EXTENDE and EDF CEIDRE about characterization of planar defects located in a welded cylindrical specimen with the Total Focusing Method (TFM). First, the characterization of EDM notches in a welded part with a complex internal profile is evaluated by simulation. The simulated results are compared to experimental ones and show good agreement. A characterization procedure for planar defects with TFM is proposed. It is applied to fatigue cracks and shows convincing results. Detection but also characterization of planar breaking backwall defects seem possible with TFM when using LL direct mode reconstruction of the region of interest. However, corner echo mode reconstruction may also complete and confirm the defect characterization depending on some conditions detailed in this paper (probe positioning, geometry knowledge, …).

To read the full article, you can visit our article library here.

The EXTENDE team