2nd NDT Student Challenge takes place virtually

25/02/2021

Alongside the 12th International Symposium on NDT in Aerospace, which was held fully online in October 2020, the NDT Student Challenge had to be run as an entirely virtual event as well. Three teams consisting of four master and doctoral students from Germany, Lithuania and China participated. The grand final took place live on ndt.net on 19th January 2021.

The 2nd NDT Student Challenge involved developing and demonstrating an NDT measurement approach for a turbine blade model that would detect most of the artificial errors inherent in the model.

The numerical model of an additively manufactured turbine blade, including known defects, was designed by NASA for this competition. With support from the modelling software CIVA, the teams were challenged to inspect the model and develop a measurement concept to detect as many flaws as possible. However, it was not only the successful detection of flaws that would make an approach promising to win, but also the economical aspects such as inspection time and effort.

To achieve equal conditions and a high scientific and technical standard, Extende provided, with the agreement of the CEA, the modelling software CIVA, one training workshop to each of the teams as well as individual CIVA support on demand.

The winning team was from Kaunas University of Technology (KTU), Lithuania, with a presentation titled: 'Numerical study of the different NDT techniques for the inspection of the additively manufactured turbine blade', by team members Mastan Raja Papanaboina, Aadhik Asokkumar, Donatas Cirtautas and Gawher Bhat.

The team from Dresden International University (DIU) in Germany presented:  'Numerical simulation of turbo fan engine blades with comparison of various NDT methods’. Team members were Shen Peng, Murali Prasad Kalidass Sudarsanbabu and Yerrapa Reddy Bharath Kumar Reddy.
The team from Nanjing University (NJU) of Aeronautics & Astronautics, China presented: 'Detection of surface cracks in turbine blade using ultrasonic techniques’, by team members: Xiaofei Yang, Tianqi Wang and Shuaishuai Gao.

The event took place free of charge and without registration on ndt.net. The record is now available within the proceedings of NDT in Aerospace at: www.ndt.net/?id=25662