Browse Category: Numerical Modelling

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:

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

New Journal Paper: GIMP modelling of large deformation problems including strain-rate effects – Application to penetration and progressive failure problems

Quoc Anh Tran, doctoral student working in the Academy of Finland project on landslide modelling, managed to get a journal paper published in Computers & Geotechnics. The paper shows number of improvements in landslides modelling with the Material Point Method. Those include strain rate dependent, structure dependent Mohr-Coulomb model for undrained analysis. We also  used a simple non-local formulation for the shear-band thickness (Pinyol et al. 2017), which reduces mesh dependence. After validation, the paper shows some – I dare to say – rather nice simulation of a Saint-Monique landslide.

The paper is open access, download it from here:


Conferences, conferences…

Last several months have been really busy, with me having really no time to catch my breath (but well, we have now 5 journal papers under review, keep fingers crossed). Recently, SeyedMohammadJavad Seyedan presented in the beautiful city of Porto in the NUMGE 2018 conference. He was explaining how to enrich the constitutive model for soil with capability to model the small strain shear nonlinearity. It is a neat expansion, which has also thermodynamical consistency (note: full paper under review)…   Then, Dr Ayman Abed presented on chemical coupling (download paper) in UNSAT Conference in Hong Kong. That is a nice effort with cooperation from UPC BarcelonaTech. Finally, I have been presenting in Vienna Dr Yang Xiujuan paper on water retention behaviour of MX-80 bentonite, when partially saturated with saline solution, as unfortunately Xiujuan could not come to Vienna.

Hong Kong – photo from the conference dinner (yay, my new camera)

Paper published and available for download!

The new paper in Computers & Geotechnics:

 A study on how to couple thermo-hydro-mechanical behaviour of unsaturated soils: Physical equations, numerical implementation and examples

 is now on-line!

For the paper please follow,63b~gd8H  to get the free copy (link valid until 30th of September). Afterwards, please contact me for the copy if you need one… The paper is summing up the developments of the coupled Finite Element code for the THEBES project at Aalto.

Thanks for reading!