David Hahn

Research
My main research interest focuses on the development and implementation of numerical simulation and optimization methods. Currently, I am a post-doctoral researcher at ETH Zürich, working on applications of these methods related to soft robotics, in particular modelling the mechanical behaviour of soft materials used in our prototypes.
My published work also includes contributions to boundary element methods for applications in computer graphics, specifically for simulating brittle fracture. Furthermore, I have developed models using finite element methods for simulating micro-magnetic devices, such as hard disk storage media.
In the future I would like to further my knowledge of numerical methods, as well as computational geometry and meshing. I am also interested in developing applications for these methods both within and outside of robotics and computer graphics in interdisciplinary research projects.


Links
Computational Robotics Lab @ ETH Zürich
Visual computing @ IST Austria
Published source code on GitHub
My Google scholar profile


Publications

Hahn, D.; Banzet, P.; Bern, J. & Coros, S.
Real2Sim: Visco-elastic parameter estimation from dynamic motion
ACM Transactions on Graphics, 2019, 38, 6 (SIGGRAPH Asia 2019)

Somm, L.; Hahn, D.; Kumar, N. & Coros, S.
Expanding Foam as the Material for Fabrication, Prototyping and Experimental Assessment of Low-Cost Soft Robots With Embedded Sensing
IEEE Robotics and Automation Letters, 2019, 4, 2 (ICRA 2019)

Hahn, D. & Wojtan, C.
Fast Approximations for Boundary Element Based Brittle Fracture Simulation
ACM Transactions on Graphics, 2016, 35, 104:1-104:11 (SIGGRAPH 2016)

Da, F.; Hahn, D.; Batty, C.; Wojtan, C. & Grinspun, E.
Surface-only Liquids
ACM Transactions on Graphics, 2016, 35, 78:1-78:12 (SIGGRAPH 2016)

Hahn, D. & Wojtan, C.
High-resolution Brittle Fracture Simulation with Boundary Elements
ACM Transactions on Graphics, 2015, 34, 151:1-151:12 (SIGGRAPH 2015)

Hrkac, G.; Hahn, D.; Saharan, L.; Schrefl, T.; Kim, J.-V.; Devolder, T. & Chappert, C.
Magnetic Vortex Core Oscillations in Multi Point Contact Spin Valve Stacks
IEEE Transactions on Magnetics, 2012, 48, 3811-3813

Hahn, D.; Bashir, M.; Schrefl, T.; Cazacu, A.; Gubbins, M. & Suess, D.
Graded Media Design for Area Density of Up to 2.5 Tb/in²
IEEE Transactions on Magnetics, 2010, 46, 1866-1868


Short bio
2017 – current Post-doc in the Computational Robotics Lab
ETH Zürich
Supervisor: Prof. Stelian Coros
2012 – 2017 PhD in computer graphics
IST Austria
Supervisor: Prof. Chris Wojtan
Thesis: https://repository.ist.ac.at/855/
2010 – 2012 MSc in Engineering
Industrial Simulation
St. Pölten University of Applied Sciences
2007 – 2010 BSc in Engineering
Communications and simulation engineering
St. Pölten University of Applied Sciences