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These webinars are available for the entire NDT community to attend. For more details, please email Don Andrews, Manager - Member Services (

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Webinar Series - Eddy Current based Non-Destructive Evaluation for the Royal Canadian Air Force (July 15, 2021 at 12:00pm EST)

CINDE Member Webinar Series

Date: July 15, 2021
Time: 12:00pm EST
Duration: 60 minutes
Topic: Eddy Current based Non-destructive Evaluation for the Royal Canadian Air Force
Presenters: Dr. Thomas Krause (Royal Military College)

Aircraft in the Royal Canadian Air Force (RCAF) are flown with a damage tolerance approach.  That is “Have Cracks, Will Fly”.   In this approach cracks, especially fatigue cracks, need to be found before they can reach a critical size that could potentially cause in-flight failure of the aircraft.  The detection of cracks is accomplished by various non-destructive inspection methods that are performed as part of a periodic inspection program, with the goal of detecting cracks small enough that they won’t grow to their critical size before the next inspection. The most common of these techniques are based on electromagnetics, known collectively as eddy current testing.  This talk will present an overview of non-destructive evaluation and recent developments in electromagnetic inspection technology and methods. Examples will include techniques developed for aging aircraft such as the CF-188 Hornet, CP-140 Aurora and CC-130 Hercules.
Fatigue cracks most often form at fasteners, thousands of which are used to hold aircraft together.  Cracks are most difficult to detect in the second or third layer of these multilayer aircraft structures.  A currently used inspection method is bolt hole eddy current, but it requires removal of the fasteners, which takes time and carries inherent risk of additional damage to aircraft components.  The focus of this talk will be the development of pulsed eddy current methods, which can detect second layer cracks without fastener removal. The talk will present the underlying physics, technology and methods used to accomplish this, and present ongoing research towards the development of safe flight for RCAF aircraft.
Presenter Bio:
Thomas W. Krause received a B.Sc. degree from the University of Calgary, Alberta, Canada, in 1987, and M.Sc. and Ph.D. degrees in Solid State Physics from McMaster University, Hamilton, ON, Canada, in 1989 and 1992, respectively. He was with the Applied Magnetics Group, Queen’s University, Kingston, ON, Canada, from 1992 to 1996. In 1996, he took a position as Physicist with Canadian Nuclear Laboratories, Chalk River, ON, developing non-destructive evaluation (NDE) technology for the nuclear industry. In 2006 he accepted a position as Associate Professor with the Royal Military College of Canada and became full Professor in 2008. He has 29 years of research and development experience on advanced NDE technology with a focus on electromagnetic NDE using pulsed eddy current, eddy current and magnetic Barkhausen noise.
Free to the NDT community. Registration required by July 13 at 12:00pm ESTConfirmation email with login information will be provided via email on Wednesday, July 14, 2021.