Browse Tag: MPM

Geomeasure project awarded

Would you like to contribute to GEOMEASURE? We are looking for a postdoctoral researcher who would use MPM to model offshore in-situ tests!

File:Gunfleet Sands Offshore Wind Farm - geograph.org.uk - 2091181.jpg
(c) Ashley Dace, Creative Commons License, Gunfleet Sands Offshore Wind Farm

Academy of Finland has awarded Aalto & Geological Survey Finland consortium financing for the Geomeasure project. We will investigate the Finnish seabed with GTK research vessel Geomari and find new ways to interpret the results of the tests, in particular free fall penetrometer tests. To do that, we will take samples from the seabed and correlate results of experimental testing with the penetrometer data. Also, the tests will be numerically modelled with MPM. We also plan to investigate the behaviour of the deposits under cyclic loading, typical for wind turbines.

Geomeasure webpage

The logos of Academy of Finland, Aalto University and Geological Survey Finland are owned and copyrighted by the Academy of Finland, Aalto University and Geological Survey Finland, respectively, and used here just for informational purposes only.

Review Paper on Material Point Method

Our review paper on Material Point Method is now available here. The link will expire in a month, but I hope that by that time we will be able to provide a copy that could be used instead.

Please have a look, and let me thank all the co-authors: professors Martin Berzins, Will Coombs, Jim Guilkey, Matthias Möller and Kenichi Soga, as well as the doctoral students (some of whom graduated by now): , Tito Adibaskoro, Seyedmohammadjavad Seyedan, Roel Tielen and Quoc Anh Tran (all the names in alphabetical order). Thank you again!

Granular MPM

We got new paper published on Granular Material Point Method in Computers & Structures. We are proud of the paper, where we show how you can get continuous material discontinuous during the flow, and then, continuous again. Thanks to that, we can have the silo filled properly 🙂

Silo filling simulation, Granular MPM
Silo filling simulation, Granular CPDI

Are you interested? We have open positions for a post-doctoral position, open until 14th of June 2021. Contact me for more information, as you will have to show your multidisciplinary approach in the application. Good luck!

E-Unsat 2020 presentation and Young Invited Lecture

The E-Unsat 2020 has been excellently organised and a resound success, despite being fully online. Even though I must say I did miss the chats with friends and informal, but often illuminating discussions with the attendees, I still have seen many great presentations and learnt much.

Silo filling comparison, CPDI vs Granular CPDI. Simulation done by inserting points on top, and letting them settle under gravity. Lines denotes the domain of the material points, with significant deformations and lack of density recovery in CPDI simulation, while with granular extension the particles settle down at much more realistic density. We used Mohr-Coulomb model for the simulation, (c) Seyedan & Sołowski

I was also presenting the paper authored by Dr Abed and me on validation of gas transport couplings in our THMC coupled Finite Element Method code Thebes (presentation here, and paper here). We have much more to do in relation to gas transport – my doctoral student Abhishek Gupta is responsible for that, and we hope to deliver ambitious simulations of gas transport of a generic nuclear waste repository in a year or two.

I was delighted to deliver the Young Invited Lecture on Granular Material Point Method, something we are working on with Seyed Mohammad Javad Seyedan. We will aim to publish full paper based on the presentation, but for now, the presentation is here.

Many more exciting things has happened and is happening with the research in my group – I will try to update you on that soon!

MPM 2019 Conference in Cambridge and presentation at Imperial College London

We have attended the 2019 MPM conference in Cambridge in numbers. I had a presentation on Uintah software and a keynote, while other members of the research group presented their research. You can find the proceedings here: http://mpm2019.eu/papers

In particular there are some presentations available:

And the conference papers:

On the way back, I have been given opportunity to present my research at Imperial College London. In particular, you can download the abridged presentation related to our research with Dr Abed in project THEBES: THMC Behaviour of the Swelling Clay Barriers