Dr.-Ing. Sebastian Pfaller

PD Dr.-Ing. habil. Sebastian Pfaller, Akad. ORat

Department of Mechanical Engineering
Institute of Applied Mechanics (LTM, Prof. Steinmann)

Room: Room 00.042
Egerlandstr. 5
91058 Erlangen

Sebastian Pfaller achieved his doctorate (degree Dr.-Ing.) in 2015 with the doctoral thesis entitled “Multiscale Simulation of Polymers”. He is head of the Capriccio group, which he established in 2018 at the Chair of Applied Mechanics at the Friedrich-Alexander-Universität Erlangen-Nürnberg. His research interests comprise:

 

Multiscale simulation of polymers

The Capriccio method developed during Sebastian’s doctorate couples a particle-based domain with a continuum. It concurrently employs molecular dynamics and the Finite Element Method. At present, the Capriccio method is being enhanced for more complex systems and it is also part of the individual research grant “Identification of Interphase Properties in Nanocomposites” by the German Research Foundation (DFG) as well as of the Research Training Group GRK 2423 “FRASCAL – Fracture across Scales”.

 

Continuum descriptions of particle-based systems

The multiscale description of polymers within the Capriccio method bases on a particle formulation, which is currently at a coarse-grained molecular dynamics level. The material properties to be employed in multiscale simulations are determined based on the behaviour of the particle domain. To this end, techniques to obtain continuum parameters from particle-based descriptions are required.

 

Interphase effects in polymer nanocomposites

The modelling and simulation of nanocomposites require a sophisticated consideration of the immediate vicinity (“interphase”) of the nanoparticles. Preliminary investigations show that it is necessary for a proper material description at the continuum level to take into account effects taking place at the level of atoms and molecules. In this context, the individual DFG research grant “Identification of Interphase Properties in Nanocomposites” investigates a particle-based modelling of the interphase, whereas the polymer matrix is described continuum-based. The coupling of the domains is realised by the Capriccio method.