IMES - Institute of Mechanical Systems
@IMES_ETHZ
Institute of Mechanical Systems in the Department of Mechanical and Process Engineering at ETH Zurich.
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A surprising general fact for data-driven modeling: the linear part of delay-embedded dynamics depends only on the linearized spectrum and the time lag (and NOT on the observables used or the full state space eigenvectors!) rdcu.be/dgZmx
The Mechanics & Materials Lab was on the road again, this time hiking in beautiful Appenzell (with great views from Ebenalp and Schäfler). Thanks to everyone for a fun day, to the weather for being gorgeous, and especially to Bastian Telgen for the organization!
Let's predict crack paths in disordered cellular networks! Our recent paper with @kon_karapiperis demonstrates how GNNs can efficiently predict such fracture (while also providing a convenient statistical representation of disordered beam networks). nature.com/articles/s4417…
nature.com
Prediction and control of fracture paths in disordered architected materials using graph neural...
Communications Engineering - Karapiperis and Kochmann develop a graph neural network-based model to predict the propagation of cracks in disordered cellular materials. The approach is then applied...
Thanks very much to @SGovindjee for an inspiring seminar on liquid crystal elastomers @IMES_ETHZ!
Need to integrate in phase space? With Shashank Saxena, Miguel Spinola and @gupta_cpfam , we used GNNs to efficiently approximate phase-space integrals in upscaled atomistics - for the accurate use of atomistics at significantly larger time scales. sciencedirect.com/science/articl…
A big congratulations to Mingwu Li (now faculty at SUSTech) on his NODY best paper award for predicting quasiperiodic attractors and their bifurcations using spectral submanifolds! linkedin.com/posts/nodycon-… The paper: rdcu.be/dfnpX
En route to our summer school on wave motion at CISM in Udine, Italy. Looking forward to learning a lot... cism.it/en/activities/…
We are happy to announce that the 17th World Congress on Computational Mechanics and ECCOMAS Congress 2026 will be held in Munich in July 2026. For further information: gacm.de/news
Our team from MIT, Delft, Sorbonne, and ETH studied the influence of various types of imperfections on the effective 3D stiffness of truss lattices, including an ML framework for estimating the occurrence of imperfections based on stiffness measurements. sciencedirect.com/science/articl…
Administrative jobs in academia take quite some time. So when you're finally done, it's time to reduce the backlog of great science waiting in unfinished manuscripts. The last month we published a stream of new papers. I'll introduce them one at a time (I'll try one per day). 🙂
Together with Laurent Guin, we present a new (multi-)phase field model for ferroelectrics, which admits arbitrary nonlinear kinetic relations for domain wall motion, correctly recovers the sharp-interface limit, and decouples domain nucleation from growth. doi.org/10.1016/j.jmps…
Thank you, Sung Hoon Kang, for an interesting seminar on bio-inspired architected materials! @IMES_ETHZ
Administrative jobs in academia take quite some time. So when you're finally done, it's time to reduce the backlog of great science waiting in unfinished manuscripts. The last month we published a stream of new papers. I'll introduce them one at a time (I'll try one per day). 🙂
We all tend to use Taylor expansions to construct low-dimensional reduced-order models from equations or data. In reality, the reduced dynamics generically live on spectral submanifolds of limited smoothness that only admit fractional-powered expansions: doi.org/10.1063/5.0143…
📢 Postdoc Job Alert! Join us @EPFL_en, in gorgeous Lausanne, Switzerland. We are a curiosity-driven team exploring the wonderful mechanics of slender structures, focusing on experiments, together w/ theory and computation. Deadline: July 1st. More info: recruiting.epfl.ch/Vacancies/2933…
The talk "Weak nonlinearity for strong nonnormality" by Professor François Gallaire from @EPFL takes place today, 10 May 2023 at 4.15 p.m. at ETH Zurich, ML H 44. The event from the Colloquium Thermo- and Fluid Dynamics is hosted by D-MAVT Professor Filippo Coletti.
Still not too late to join: if you'd like to learn about phase-field modeling of ferroelectrics and why it still poses challenges, join my virtual seminar later today (the zoom link is on the website).
Don't miss the ninth seminar of the IMX Seminar Series of this spring: 📅 8 May 2023 at 13:15 🎙️ Prof. @DennisKochmann from @ETH_en 🔎 The kinetic evolution of domain microstructures in ferroelectric ceramics – simulations vs. experiments Find out more: memento.epfl.ch/event/imx-semi…
Thanks to the kind invitation from @Materials_EPFL, I will present our work on ferroelectrics next Monday. Note that it's a virtual seminar (long story; my sincere apologies for not being there in person). The zoom link is on the seminar website, so come join us online!
Don't miss the ninth seminar of the IMX Seminar Series of this spring: 📅 8 May 2023 at 13:15 🎙️ Prof. @DennisKochmann from @ETH_en 🔎 The kinetic evolution of domain microstructures in ferroelectric ceramics – simulations vs. experiments Find out more: memento.epfl.ch/event/imx-semi…
I'm looking for a motivated PhD student to work with me on the freezing of Soft Matter @ETH_Materials . If you know anyone who might be interested, please do encourage them to apply: jobs.ethz.ch/job/view/JOPG_…
Need data-driven, nonlinear reduced-order models computed in Python? The beta-version of SSMLearnPy is now available here with examples: github.com/haller-group/S… Thanks to @mattiacenedese and @__BalintKaszas !
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