Presentations of the ALERT Doctoral School 2021

ALERT Doctoral School 2021
30th September to 2nd October 2021, Aussois, France (or online)

Constitutive Modelling in Geomaterials
Coordination: prof. Claudio Tamagnini [CT] and prof. David Mašín [DM]
Lecturers: prof. Ivo Herle [IH], prof. Cristina Jommi [CJ] and prof. Claudio di Prisco [CDP]

Foreword

Irrespectively of fast development of approaches for the analysis and design in geomechanics based on the methods for discontinuum (such as discrete element method), analysis of continua based on mesh or fast developing particle-based meshless methods still represents major means of numerical analysis in geomechanics. At the very core of such an analysis is a constitutive model: mathematical relationship converting the peculiar behaviour of particulate material, governed by the interactions between individual particles, into the behaviour of continua. As such, a properly selected and calibrated constitutive model has a critical effect on the outcomes of geotechnical simulations.

This school aims to introduce the students into the broad field of constitutive modelling of particulate materials with special emphasis on the behaviour of soils: after the introduction consisting of summary of basic features of soil behaviour, they will be introduced into fundamentals of constitutive modelling, followed by more detailed description of various modelling approaches – from the basic elastic and elasto-plastic models to more advanced frameworks of hardening plasticity, bounding surface plasticity, generalised plasticity and hypoplasticity. The second day will be focused on various specific more-advanced topics, such as simulation of small strain stiffness and cyclic loading, modelling of unsaturated soils, meta-stable structure, breakage, thermal effects, chemical effects and time and rate dependence, including formulation of finite-deformation plasticity and macroelement modelling. The last day is devoted to steps needed for adoption of models in numerical analysis tools, namely to their implementation in finite element codes. Finally, in practical hands-on sessions, students will train calibration using real experimental data themselves, using both manual and automatic freely-available calibration tools.

Day 1

  • Basic features of soil behaviour and soil testing [CJ]
  • Fundamentals of constitutive modelling for soils [IH]
  • The theory of plasticity in constitutive modelling of rate-independent soils [CT]
  • Hypoplasticity and other incrementally non-linear modelling approaches [DM]

Day 2

  • Modelling non-linearity, small-strain stiffness and cyclic loading [DM]
  • General overview on modelling the coupled behaviour of unsaturated soils [SJ]
  • Meta-stable structure, breakage and thermal effects [DM]
  • Time and rate dependence [CDP]
  • Finite deformation plasticity [CT]

Day 3

  • Numerical implementation of constitutive models [CT]
  • Macroelement modelling [CDP, Luca Flessati]

Workshop and Doctoral School announcement

Dear ALERT community,

As sanitary conditions are improving, certainly thanks to the vaccination, we are confident that it will be possible to meet again in September 2021 in Aussois.

However, it cannot be ruled out that travel restrictions will still be in place at that time, particularly from outside the EU. The conditions for entering France will depend on your country of departure and your vaccination status (https://www.diplomatie.gouv.fr/en/coming-to-france/coronavirus-advice-for-foreign-nationals-in-france/#sommaire_1 ).

Therefore, for the first time in the history of ALERT, the decision was taken to organize the workshop and the doctoral school in hybrid mode in 2021. It means it will be possible to attend these events while being present in Aussois or remotely. This way, we hope to meet the expectations of both those eager to meet and those unwilling to travel.

In the coming weeks, you will be able to register and choosing one of these two options (which can be modified if necessary).

Keep staying safe, long life to ALERT-Geomaterials!

Last day reminder for the registration for the Invited Lecture, PhD Prize and E-School (September 28th to October 1st 2020)

Dear Alert friends,

As you know, due to the COVID-19 pandemic, and after careful consideration, the Bureau and the BoD have decided to cancel the ALERT workshop in 2020 — it will take place in 2021 (from September 27 to September 29).

But the Doctoral School, the PhD Prize as well as the Invited Lecture will take place online (via one of the several available platforms for distance teaching).
The doctoral E-School on “Point based numerical methods in geomechanics” is organized by Pr. Manolo Pastor and Pr. Wei Wu (see description). It will take place remotely every morning from September 28th to October 1st.

The PhD prize and the Invited Lecture will take place remotely on Tuesday September 29th, from 3:00 pm to 4:00 pm (CET) for the ALERT PhD prize 2020 and from 4:00 pm to 5:00 pm (CET) for our ALERT Invited lecturer, Pr. Chris Spiers.

All these events are free of charge and available for ALERT and non-ALERT members. However, the registration is mandatory.

It is thus my great pleasure to announce that the registration for the 2020 ALERT Geomaterials events is open now!  After filling the form and pressing the button “Register”, you will get an email with the registration data. In case of the registration of the ALERT members, the corresponding representative of the ALERT institution will receive the registration data too.

Registration is now closed.

Stay healthy,

Frédéric COLLIN, ALERT Director.

Registration for the 2020 ALERT Invited Lecture, PhD Prize and E-School (Reminder)

Dear Alert friends,

As you know, due to the COVID-19 pandemic, and after careful consideration, the Bureau and the BoD have decided to cancel the ALERT workshop in 2020 — it will take place in 2021 (from September 27 to September 29).

But the Doctoral School, the PhD Prize as well as the Invited Lecture will take place online (via one of the several available platforms for distance teaching).
The doctoral E-School on “Point based numerical methods in geomechanics” is organized by Pr. Manolo Pastor and Pr. Wei Wu (see description). It will take place remotely every morning from September 28th to October 1st.

The PhD prize and the Invited Lecture will take place remotely on Tuesday September 29th, from 3:00 pm to 4:00 pm (CET) for the ALERT PhD prize 2020 and from 4:00 pm to 5:00 pm (CET) for our ALERT Invited lecturer, Pr. Chris Spiers.

All these events are free of charge and available for ALERT and non-ALERT members. However, the registration is mandatory.

It is thus my great pleasure to announce that the registration for the 2020 ALERT Geomaterials events is open now!  After filling the form and pressing the button “Register”, you will get an email with the registration data. In case of the registration of the ALERT members, the corresponding representative of the ALERT institution will receive the registration data too.

Registration is now closed.

Stay healthy,

Frédéric COLLIN, ALERT Director.

Registration for the 2020 ALERT Invited Lecture, PhD Prize and E-School

Dear Alert friends,

As you know, due to the COVID-19 pandemic, and after careful consideration, the Bureau and the BoD have decided to cancel the ALERT workshop in 2020 — it will take place in 2021 (from September 27 to September 29).

But the Doctoral School, the PhD Prize as well as the Invited Lecture will take place online (via one of the several available platforms for distance teaching).
The doctoral E-School on “Point based numerical methods in geomechanics” is organized by Pr. Manolo Pastor and Pr. Wei Wu (see description). It will take place remotely every morning from September 28th to October 1st.

The PhD prize and the Invited Lecture will take place remotely on Tuesday September 29th, from 3:00 pm to 4:00 pm (CET) for the ALERT PhD prize 2020 and from 4:00 pm to 5:00 pm (CET) for our ALERT Invited lecturer, Pr. Chris Spiers.

All these events are free of charge and available for ALERT and non-ALERT members. However, the registration is mandatory.

It is thus my great pleasure to announce that the registration for the 2020 ALERT Geomaterials events is open now!  After filling the form and pressing the button “Register”, you will get an email with the registration data. In case of the registration of the ALERT members, the corresponding representative of the ALERT institution will receive the registration data too.

Registration is now closed.

Stay healthy,

Frédéric COLLIN, ALERT Director.

LARAM School on Landslide Risk

Dear All,

Covid19 outbreak is a global threat and, first of all, we hope that you and your families are fine. The LARAM team is fine and we hope to meet students and lecturers again in person as soon as possible.

Also this year the LARAM School (www.laram.unisa.it) will take the occasion to teach and be together with the students. We will simply do in a different way.

We reshaped the traditional schedule of the School, with the lectures and the other activities comprised in the time window from 13:00 to 19:30 in Italian Summer time (=UTC+2).

Continue reading

April 2020 Newsletter and decisions due to the pandemic

Dear Alert friends,

first of all, the Board of Directors and the Bureau hope you (and your family) are doing well in these weird and difficult times…

Due to the COVID-19 pandemic, and after careful consideration, the Bureau and the BoD have decided to cancel the ALERT workshop in 2020 — it will take place in 2021 (from September 27 to September 29).
Concerning the OZ course, we propose to postpone it to April 2021.

The election of the Board of Director was supposed to be organized this year and after discussions, it is decided to postpone it in 2021. The current Bureau and the Board will remain in charge by a prorogation of their mandate for the ordinary matters.

*All the other activities will be organized remotely:*
– for the doctoral school, we have decided to keep it for this year– it will be taught and attended remotely, though.
– we have decided not to postpone also the PhD prize as well as the invited lecture, also these two events will take place online (either pre-recording it or giving it online via one of the several available platforms for distance teaching).

You will find more information in the Editorial of the Newsletter but you can imagine how painful this decision was. It will be the first time since 1994 that we will not meet in Aussois !

Keep staying safe!

Frédéric COLLIN
ALERT Director