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Felix Schwab

Dr.-Ing. Felix Schwab

Raum: 110.1
Tel.: +49 721 608-47987
felix schwabMlu6∂kit edu

Institut für Angewandte Materialien
Computational Materials Science (IAM-CMS)
MZE - Geb. 30.48
Straße am Forum 7
76131 Karlsruhe



Forschung

Allgemein

If you are interested in Bachelor's or Master's theses or work as a research assistant in the field of crack propagation, please send me an email for topics and further details.

A recently published article made it on the cover page of Polymer Chemistry.

We model the two-stage curing reaction using all-atom molecular dynamics simulations. The systems are simulated and the results are used to evaluate the chemical reaction process and then to identify the resulting material’s macroscopic properties and behaviour. These properties are determined at different crosslinking stages of the curing process providing a unique insight into the development of these parameters during the chemical reaction.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Crack propagation based on the phase-field method

Due to its ability to implicitly track free-boundary movements, the phase-field method is predestinated for modelling and simulating crack propagation.

  • New modelling approaches for enhanced consistency with Griffith’s theory
  • Inclusion of different crack modes
  • Multiphase-field compatibility

 

 

Curing process of a fibre-reinforced thermoset

Fibre-reinforced polymers, much like other materials, are exposed to production induced eigenstrains/-stresses and micro-crack formation. Their influence on material behaviour and service life must commonly be considered. To obtain a more profound understanding about how eigenstrains/-stresses and cracks are induced, this project mainly focuses on the curing process of glass fibre-reinforced thermosets.

  • Modelling based on the phase-field method
  • Coupling thermal, mechanical, and curing influences
  • Visco-elasticity
  • Micro-crack propagation
  • Molecular dynamics simulations of the curing process, and determination of material properties

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 1: Research on the micro- and nano-scale: Thermoset curing simulations on basis of a phase-field method to predict eigenstresses and micro-cracks, supported by molecular dynamics simulations of the chemical reactions to calculate cure and temperature dependent material properties.

 

 

Publikationen


2018
Multiphase-field model of small strain elasto-plasticity according to the mechanical jump conditions.
Herrmann, C.; Schoof, E.; Schneider, D.; Schwab, F.; Reiter, A.; Selzer, M.; Nestler, B.
2018. Computational mechanics, 62 (6), 1399–1412. doi:10.1007/s00466-018-1570-0
Correction to: Small strain multiphase-field model accounting for configurational forces and mechanical jump conditions.
Schneider, D.; Schoof, E.; Tschukin, O.; Reiter, A.; Herrmann, C.; Schwab, F.; Selzer, M.; Nestler, B.
2018. Computational mechanics, 61 (3), 297. doi:10.1007/s00466-017-1485-1
Small strain multiphase-field model accounting for configurational forces and mechanical jump conditions.
Schneider, D.; Schoof, E.; Tschukin, O.; Reiter, A.; Herrmann, C.; Schwab, F.; Selzer, M.; Nestler, B.
2018. Computational mechanics, 61 (3), 277–295. doi:10.1007/s00466-017-1458-4
2017
On stress and driving force calculation within multiphase-field models : Applications to martensitic phase transformation in multigrain systems.
Schneider, D.; Schoof, E.; Schwab, F.; Herrmann, C.; Selzer, M.; Nestler, B.
2017. 4th GAMM Workshop on Phase Field Modeling, RWTH Aachen University, Germany, 2nd - 3rd February 2017
On the stress calculation within phase-field approaches : a model for finite deformations.
Schneider, D.; Schwab, F.; Schoof, E.; Reiter, A.; Herrmann, C.; Selzer, M.; Böhlke, T.; Nestler, B.
2017. Computational mechanics, 60 (2), 203–217. doi:10.1007/s00466-017-1401-8
2016
On stress and driving force calculation within phase-field models : Applications to martensitic phase transformation and crack propagation in multiphase systems.
Schneider, D.; Schoof, E.; Tschukin, T.; Schwab, F.; Selzer, M.; Nestler, B.
2016. Interdisziplinäres Seminar Mathematik und Mechanik, Kaiserslautern, Deutschland, 2016
Phase-field modeling of crack propagation in multiphase systems.
Schneider, D.; Schoof, E.; Schwab, F.; Selzer, M.; Nestler, B.
2016. EMMC15 : 15th European Mechanics of Materials Conference, Brussel, Belgium, 7th - 9th September 2016
Phase-field modeling of crack propagation in multiphase systems.
Schneider, D.; Schoof, E.; Schwab, F.; Selzer, M.; Nestler, B.
2016. ECCOMAS 2016 : European Congress on Computational Methods in Applied Sciences and Engineering, Crete Island, Greece, 5th - 10th June 2016