Last but not least for 2016, Aurelian Tanase presented his PhD thesis seminar, with PhD work completed under the supervision of Drs. Tavoularis and Groeneveld. The title of the talk was “flow and heat transfer in tubes with objects”.It was an interesting talk, followed by some delicious shawarma to round out our fall semester. Congrats Aurelian and here’s to 2017!
Last Friday, Catherine Kuforiji presented her PhD thesis work, giving a talk titled “Development of SS316L-AL2O3 composites for wear applications”. Supervisor Dr. Michel Nganbe was present for the seminar. Congratulations to student and supervisor for the (near) completion of this PhD work! Well done, Catherine, we are very proud of you.
After the talk, I had the honour of having my photo taken with Catherine too. 🙂
Last Friday featured a graduate seminar by my own MASc candidate,Bochun Zhang. Bochun gave a talk titled “Failure Mechanism Analysis and Life Prediction based on Atmospheric Plasma-Sprayed (APS) and Electron Beam-Physical Vapor Deposition (EB-PVD) Thermal Barrier Coatings”. Bochun’s primary supervisor was Dr. Kuiying Chen, from Canada’s National Research Council, and I was the cosupervisor. Unfortunately, Dr. Chen could not attend, but I’m sure he would have been as proud of Bochun as I was! Well done, Bochun.
Last Friday, Neda Sadeghi Malvajerdi presented the work from her MASc, with a talk titled “Preliminary design of an internal annuloplasty ring for the aortic valve”. Supervisor Dr. Michel Labrosse was in the audience (as was husband Majid). Thanks to everyone who came back for the talk after the fire alarm went off!
Majid Kashani got to kick of the fall semester seminar series. He gave a talk titled “Effect of forming process on the deformational behaviour of steel pipes”. Supervisor Dr. Magdi Mohareb was not present but Majid’s wife was there for moral support (and coincidentally, she’s up to present next week!). Well done, Majid!
The first seminar of the semester will be this Friday! MASc CandidateMajid Tanbakuei Kashani will be giving a talk on “Effect of Forming Process on the Deformational Behaviour of Steel Pipes”. The seminar abstract is below.
Date: Friday September 16th
Room: SITE J0106
Buried pipeline networks play a vital role in transportation of oil and natural gas from centers of productions to centers of consumptions. A common manufacturing technique for such pipes is the UOE process, where a flat plate is first formed into a U shape, then in an O shape, welded at the seam, and Expanded before being shipped on site. The UOE forming process induces residual strains in the pipe.
When buried pipelines cross the regions of discontinuous permafrost, they undergo differential frost heaving, inducing significant bending deformations, which potentially induce local buckling in the pipe wall. To control local buckling, design standards impose threshold limits on buckling strains. Such threshold values are primarily based on costly full-scale experimental results. Past nonlinear finite element analysis attempts aiming at determining the threshold buckling strains have neglected the presence of residual stresses induced by UOE forming and were thus found to grossly overestimate the buckling strains compared to those based experiments.
Within the above context, the present study focuses on developing a numeric technique to predict the residual stresses induced in UOE forming, and incorporating the residual stresses in 3D nonlinear FEA modeling to predict improved buckling strain limits. Comparisons against conventional analysis techniques that omit residual stresses reveal the importance of incorporating residual stresses when quantifying buckling strains.
Yesterday, Jeff Lamonde presented his MASc thesis seminar on “Development of an Autonomous Inspection Robot for Small Diameter Pipes”. Interesting talk, and supervisor Dr. Eric Lanteigne was present to support his student.
Missing in action were the timbits and coffee. There was a near riot, but luckily we staged an intervention. No riots. Sadly, no timbits either.
Ruben Fernandez presented his PhD thesis seminar, giving a talk titled “Deposition of Thick Copper Cold Spray Coatings on Steel for Used Nuclear Fuel Repository using Nitrogen and Pulsed Waterjet Surface Preparation.”
It was a really interesting talk, lots of questions afterwards! Unfortunately, supervisor Dr. Bertrand Jodoin was unable to attend but I am sure he would have been very proud. The labmates stood in for the supervisor in the obligatory photo. Congrats Ruben on almost completing your PhD!
Last Wednesday, Ahmad Eter presented his PhD seminar work on “flow obstruction effects on heat transfer in channels at supercritical and high subcritical pressures”. Supervisor Dr. Stavros Tavoularis was present, although co-supervisor Dr. Groeneveld could not attend. I got a few pics of Ahmad with his supervisor.