Last Wednesday, Deliang (Leon) Guo his thesis seminar titled “MCrAlY Coatings Cold Sprayed Using Nitrogen: Preparation and Performance”. Unfortunately, supervisor Dr. Bertrand Jodoin was tied up with meetings and couldn’t attend but luckily sent out his entire crew in support of Leon. Congratulations on near completion of your PhD and we wish you all the best for thesis submission and defence!
Friday saw a first for our MCG seminar series – we welcomed a student from civil engineering to present. Aynsley Griffin presented has MASc work, titled “Evaluation of corrosion detection methods in reinforced concrete structures”. Supervisor Dr. Beatriz Martin-Perez was present and I introduced her to the MCG tradition of getting her photo taken with her graduate student. Thanks to both Aynsley and Dr. Perez-Martin for participating in our seminar series and its traditions!
Last Friday, Shuhong Dong presented her MASc thesis seminar, giving a talk titled “modelling high temperature cyclic oxidation of intermetallic alloys”. Supervisors Drs. Ming Liang and Kuiying Chen could unfortunately not be present but I got her friend Bochun Zhang to stand in for the photo. Well done, Shuhong!
Kicking things off in 2017 was Simon Baril-Gosselin who presented his PhD thesis work on “Fabrication of carbon fibre opposites reinforced with carbon nanotubes”. Unfortunately, PhD supervisor Dr. François Robitaille was teaching and unable to attend. However, there was an enthusiastic audience and our grad students were kind enough to supply us with coffee and cookies (because all scientific talks are made better by coffee and cookies.
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.
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.
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!