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2023: IUTAM


2020: IUTAM Symposium Computational Fracture Mechanics in Multifield Problems


  • Update (Nov 8):

    For a refund of your paid fees please contact us at iutam(at)uni-siegen.de or annika.Ippach(at)uni-siegen.de

  • Update (Oct 28):

    Dear All,
    on October 28 the federal German government has enacted a new lockdown and tightened restrictions pertaining to travel and meetings. In view of these developments, we must conclude at this time that the symposium is no longer viable and, with deep regret, we are forced to call it off. We are grateful to all of you who have steadfastly supported the symposium despite these difficult times.

    In the name of the organizing committee,
    Kerstin Weinberg, Anna Pandolfi, Michael Ortiz

  • event period

    November 2-6, 2020 at Physikzentrum Bad Honnef, Germany (see Poster)

  • Tentative schedule:

Tuesday (3.11)
Wednesday (4.11)
Thursday (5.11)
Stainier Hütter

Fraternali Dondl
Wattrisse Diehl
11:40 Opening Pandolfi Lewintan
12:20 Ortiz Keip Reese
14:30 Martinez-Paneda Kozinov & Kuna
15:10 Lancioni Ricoeur
15:50 Blesgen Mosler
17:00 Balzani Weinberg
17:40 Rodriguez-Martinez Wieners
  • A detailed schedule is here: pdf

  • About Corona:

    If you come from a risk-areas country (1), you must present a medical certificate, which must not be older than 48 hours. The 48-hour period begins at the time the test result is approved and ends at the time of entry into the Federal Republic of Germany.

    In the current regulation of the state of North Rhine-Westphalia - the location oft he Physikzentrum - there is no regulation for travelers from no-risk-areas countries or inner-German risk areas.

    The hygiene concept of the Physikzentrum has been practiced since July and has proven itself. The short version: compulsory masks everywhere except in the lecture hall and at the dining table. For more details see the file attached. All participants are accommodated in single rooms, unless a double room is explicitly requested.

    (1) Risk areas: Link

  • How to get there?

    The venue is the Physikzentrum (Physics center) in Bad Honnef, near to Bonn: Link

    • The best way to come is from Bonn Main Station or Bonn/Siegburg by tram 66. It takes half an hour from Bonn Main station or one hour from Siegburg till the last but one stop "Am Spitzenbach". The journey goes through Bonn and then along the Rhine. A 200m walk through the park brings you to the Physikzentrum.

    By train:

    • go to Bonn Main Station, change here in the tram 66 (Telekom line) and go to the stop "Am Spitzenbach".

    • go to Siegburg (ICE), change here in the tram 66 (Telekom line) and go to the stop "Am Spitzenbach".

    By plane to Cologne-Bonn Airport:

    • by train in direction Koblenz to Rhöndorf. It goes hourly and takes half an hour. A 500m walk brings you to the Physikzentrum.

    • alternatively: by train to Bonn Main station and the see above

    By plane to Frankfurt Airport:

    • by train (ICE) to Siegburg, change here in the tram 66 (Telekom line) and go to the stop "Am Spitzenbach".

    By car:

    • Hauptstraße 5, 53604 Bad Honnef; GPS coordinates: 50° 39′ 5,5″ N, 7° 13′ 10,3″ O

  • How to sign up?
    • In addition to a conference room, the Physics Center Bad Honnef offers an infrastructure for up to 80 guests, that means for all our participants accommodation and meals are included.

    • We do not charge a conference fee but the lodging has to be paid in advance. You will get an Email about details in August.

  • Some more details:
    • The symposium room in the conference venue will be equipped with a Computer (Windows;VGA), LCD projector, laser pointer and microphone.

    • Poster size should be A0 (portrait, i.e., 84x119cm) or any other format with at most 90cm width.

  • Scientific Topics
  • Topic of the IUTAM symposium is the computational prediction of damage, crack growth, and the extent of fragmentation in solids.

    Recently, research in computational fracture mechanics has advanced remarkably, typically using cohesive zone models and extended finite elements. Beyond these well established and popular methods, several innovative approaches have emerged, such as phase field methods, eigenfracture, eigenerosion, and level-set methods. These approaches are characterized by a regularization of the evolving crack boundaries with an additional small but finite length scale. This length scale arouses new questions and doubts, in particular concerning multi-physic problems.

    The aim of the IUTAM symposium is to draw a comparative overview of different computational strategies for multi-field fracture problems by illustrating the most innovative -non necessarily the nowadays most popular- techniques. We would like to open a forum to discuss new horizons of multi-field fracture mechanics covering several aspects of research on computational fracture, starting from specific methods of choice and numerical strategies to theoretical aspects of constitutive modeling in a multi-field setting. Particular emphasis will be laid on pioneering discretization methods for the solution of coupled non-linear problems at different length-scales.

    The participation at the IUTAM Symposia is by invitation from the Scientific committee only.

    If you have any questions, please contact us at: iutam@uni-siegen.de

2019: Sitzung des Arbeitskreises Mikrostrukturmechanik im Fachausschuss Computersimulation der DGM
  • Veranstaltungsdaten

    November 13, 2019

  • Das Leitthema der Sitzung lautet

    Stochastische Mikrostrukturen in Experiment und Simulation
  • Anmeldung

    Anmeldung bis zum 13. Oktober 2019 bei Thomas Reppel (thomas.reppel@uni-siegen.de)

2017: Treffen des Arbeitskreises Stoffgesetze
  • Veranstaltungsdaten

    Am 23. Juni 2017 an der Universität Siegen:

    Raum AE-A 103
    Am Eichenhang 50
    57076 Siegen

  • Informationen
  • Programm
    Programm als pdf
  • Erinnerungsfoto

2015: 2nd GAMM Seminar on Phase-Field-Modeling
  • Event Period

    February 5-6, 2015, at Siegen University, Chair of Solid Mechanics

    Thank you for your interest and thanks to all participants who made the seminar a great success. The GAMM Seminar on Phase-Field-Modelling was on February 5/6 2016 in Aachen.

  • Announcement
    Flyer as pdf
  • Phase Field Modelling

    Phase field models have been in the focus of research in applied mathematics and mechanics in recent years. Due to the multiple applications in coupled problems, phase transitions, and fracture the GAMM activity group on Phase field modelling was installed at the annual GAMM meeting 2013, in Novi Sad, Serbia. The intention of the activity group is to bring together expertise from mathematics, mechanics and materials science, to improve the understanding of phase field approaches, to analyse the models analytically, and to devellop improved numerical schemes.
    The activity started its actvity in the summer of 2013 with a kick-off meeting in Frankfurt.

  • Template for abstracts

    Please use this template for the abstract in Latex.

  • Schedule and timetable

    Feb 5, 1 pm opening

    Feb 5, 2 pm - 6 pm talks

    Feb 5, 7 pm dinner and informal get-together at "Schwarzes Schaf"

    Feb 6, 9 am- 6 pm talks

  • Program
    Scientific Program
  • Venue

    University of Siegen

    Am Eichenhang 50
    57076 Siegen

  • List of participants (of February, 3rd)

    Hans-Dieter Alber, Guillaume Boussinot, Michael Budnitzki, Reza Darvishi, Laura De Lorenzis, Tymofiy Gerasimov, Yousef Heider, C. A. Hernández Padilla, Christoph Herrmann, Tobias Hofmann, Angelina Hülsmann, Marc Kamlah, Markus Kästner, Julian Kochmann, Arnd Koeppe, Charlotte Kuhn, Michael Kutter, Philipp Metsch, Lukas Moj, Jörn Mosler, Ralf Müller, Mangesh Pise, Dennis-Michael Rapp, Daniel Schneider, Ephraim Schoof, Robert Spatschek, Christian Steinke, Michael Strobl, Oleg Tschukin, Baixiang Xu, Min Yi, Ying Zhao

  • Local information

    All participants are responsible for making their own travel and accommodation arrangements. Hotels in the vicinity of the university are: Ramada Siegen, Hotel Bürger, Best Western Siegen
    Please see the web page of the hotels for further information.

  • Conference fee

    If you have not done yet, please transfer the seminar fee of €80 as soon as possible to the following bank account:

Name of the bank account holder University of Siegen
Name of the Bank:
Sparkasse Siegen
GAMM Seminar 2015 (and your name)

Card transactions cannot be provided.

In case you need here are some additional information on the bank:

14 95 951
Bank code, Sparkasse Siegen
460 500 01
Address of the bank Sparkasse Siegen Sparkasse Siegen, Morleystr. 2, 57072 Siegen, Germany

2014: IUTAM Symposium on innovative numerical approaches for materials and structures in multi-field and multi-scale problems

September 1-4, 2014 at Burg Schnellenberg near Cologne (North Rhine-Westphalia, Germany)

We thank all the participants for their valuable contributions. The friendship and fellow-feeling felt during the symposium inspired the idea to collect the presentations of some of the present researchers in a special book. Our choice was to organize a book as part of the series Lecture Notes in Applied and Computational Mechanics (LNACM), entitled Innovative Numerical Approaces for Multi-Field and Multi-Scale Problems. It will appear at Springer in July 2016.

Abstract of the IUTAM Symposium (GA12-16)



Scientific Committee:

Marino Arroyo, School of Civil Engineering of Barcelona, Spain
Kaushik Bhattacharya, Caltech, US
Michael Ortiz, Caltech, US
Anna Pandolfi, Politechnico di Milano, Italy
Laurent Stainier, Ecole Centrale de Nantes, France
Christian Wieners, Karlsruher IT, Germany
Kerstin Weinberg
, University of Siegen, Germany

List of Participants:

Irene Arias, Pilar Ariza, Marino Arroyo, Daniel Balzani, Kaushik Bhattacharya, Thomas Blesgen, Curt A. Bronkhorst, Agustin Bompardre, Fehmi Cirak, Sergio Conti, Alberto Cuitino, Antonio De Simone, Malena Espanol, Bernhard Eidel, Fernando Fraternali, Adriana Garroni, Vikram Gavini, Sanjay Govindjee, Ercan Gürses, Stefanie Heyden, Richard D. James, Dennis M. Kochmann, Ellen Kuhl, Christopher J. Larsen, Sigrid Leyendecker, Adrian Lew, Bo Li, Jaime Marian, Xanthippi Markenscoff, Dan Meiron, Alexander Mielke, Jean-Francois Molinari, Alan Molinari, Alan Needleman, Matteo Negri, Michael Ortiz, Houman Owhadi, Anna Pandolfi, Raul Radovitzky, Guruswami Ravichandran, Celia Reina Romo, Julian Rimoli, Ignacio Romero, Bernd Schmidt, Laurent Stainier, Timothy John Sullivan, Deborah Sulsky, Christian Wieners, Kerstin Weinberg, Arash Yavari, Rena Yu

List of Speakers with title of the talks and latex-template for your Abstract and your Proceedings contribution.


Timetable and Book of Abstracts

Mon, Sept. 1
Tue, Sept. 2
Wed, Sept. 3
Thu, Sept. 4
till 9:00
breakfast breakfast
Registration & get together
12:00 opening: Kerstin Weinberg

Curt Bronkhorst (Chair)
Alan Needleman
Jean-Francois Molinari
Fehmi Cirak
Rena Yu
Bo Li
Malena Espanol
Alain Molinari (Chair)
Sanjay Govindjee
Adrian Lew
Sergio Conti
Irene Arias
Dennis Kochmann
Julian Rimoli
Laurent Stainier (Chair)
Xanthippi Markenscoff
Ellen Kuhl
Pilar Ariza
Jaime Marian
Thomas Blesgen
Fernando Fraternali
lunch lunch lunch
Anna Pandolfi (Chair)
Richard James
Alain Molinari
Adriana Garroni
Sigrid Leyendecker
Matteo Negri
Guruswami Ravichandran
Alan Needleman(Chair)
Chris Larsen
Houman Owhadi
Marino Arroyo
Ignacio Romero
Arash Yavari
Bernd Schmidt
Sanjay Govindjee(Chair)
Alexander Mielke
Deborah Sulsky
Alberto Cuitino
Antonio DeSimone
Vikram Gavini
Ercan Gürses
closing remarks:
Anna Pandolfi

walk in the forest
"knight meal"



How to get there?

  • The venue is a Castle and can be reached at best by car. Next regional train station is Finnentrop. Main train stations nearby are Cologne, Dortmund or Hagen. The next airports are Cologne Bonn Airport and Frankfurt Airport. Neither from Cologne nor from Frankfurt to Attendorn are direct train or bus connections. There will be, of course, taxis. We think to organize a 'shuttle service' in a sense, that we pre-book a taxi or minibus which collects several people of the symposium to share the costs. If you are interested, please send us your time of arrival at: IUTAM(at)uni-siegen.de
  • If you prefer to go by train, you may find connections at bahn.de; we would recommend to go to Finnetrop and then take a taxi.
  • If type into google maps 'Burghotel Schnellenberg' you find a map of the location.

Some more details:

  • The symposium room in the conference venue will be equipped with a Computer (Windows;VGA), LCD projector, laser pointer and microphone.
  • Poster size should be A0 (portrait, i.e., 84x119cm) or any other format with at most 90cm width.
  • A get together with medieval music and a corresponding meal is planned in the evening of Tuesday September 2nd, opened to all symposium participants.


We thank our colleagues who accepted to attend the IUTAM on the occasion of M.Ortiz’ 60th birthday. For an enjoyable stay we ask you for an "all inclusive" conference fee. The fee includes symposium material, lodging with full meals at the castle Burg Schnellenberg, a featured Medieval Social Event, and a book of Abstracts of the symposium contributions.


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