Rex Bedzra M.Sc.

Rex Bedzra M.Sc.

Member

AICES

Advisor / Co. Advisor

Prof. Reese / Dr. Vladimirov / Dr. Simon

Thesis Title

Multi-scale Modelling of the Nonlinear Deformation and Damage Behavior of Fiber Reinforced Composites

Dissertation

Multi-scale modelling of the deformation of fibre reinforced composites

AICES Graduate School
RWTH Aachen University
Schinkelstr. 2
D-52056 Aachen
Germany

Education

  • 04/2014 - 09/2019 Doctoral student at AICES Graduate School, RWTH Aachen University, Germany
  • 04/2011 - 08/2013 Master student of Aerospace Engineering at FH Aachen, Germany
  • 08/2004 - 04/2008 Bachelor student of Aerospace Engineering at KNUST, Ghana

Research Interests

Anisotropic material modeling, Damage mechanics, Multi-scale simulations, Continuum mechanics, Finite element technology, Fluid-structure interaction, Fluid mechanics

Thesis

R. Bedzra: Finite element simulation of two dimensional orthogonal cutting process and comparison with experiments. Master thesis conducted at IFAM, RWTH Aachen University, August 2013. Click here.

Journal Publications

  • R. Bedzra, S. Reese, J.-W. Simon: Hierarchical multi-scale modelling of flax fibre/epoxy composite by means of general anisotropic viscoelastic-viscoplastic constitutive models: Part I - Micromechanical model, submitted to International Journal of Solids and Structures.
  • R. Bedzra, S. Reese, J.-W. Simon: Hierarchical multi-scale modelling of flax fibre/epoxy composite by means of general anisotropic viscoelastic-viscoplastic constitutive models: Part II - Mesomechanical model, submitted to International Journal of Solids and Structures.
  • R. Bedzra, Y. Li, S. Reese, J.-W. Simon: A comparative study of a multi-surface and a non-quadratic plasticity model with application to the in-plane anisotropic elastoplastic modelling of paper and paperboard, Journal of Composite Materials 53, 753 – 767, 2019. Click here
  • R. Bedzra, S. Reese, J.-W. Simon: Meso-macro modelling of anisotropic metallic composites within the framework of multisurface plasticity, International Journal of Solids and Structures 120, 186 – 198, 2017. Click here

Book Chapters

R. Bedzra, S. Reese, J.-W. Simon: Micro-macro modelling of metallic composites, in Multi-scale Modeling of Heterogeneous Structures, Springer, 2018. Click here.

Conference Proceedings

  • R. Bedzra, S. Reese, J.-W. Simon: Multi-scale modelling of fibre reinforced composites exhibiting elastoplastic deformation, Proceedings in Applied Mathematics and Mechanics 17, 403 – 404, 2017. Click here
  • R. Bedzra, J.-W. Simon, B. Stier, S. Reese: Micro-macro modelling of fiber reinforced composites exhibiting elastoplastic response, Proceedings in Applied Mathematics and Mechanics 15, 275 – 276, 2015. Click here
  • R. Bedzra, J.-W. Simon, B. Stier, S. Reese: Micro-macro modelling of fiber reinforced composites exhibiting elastoplastic response within the framework of multisurface plasticity, Conference Proceedings of the YIC GACM 2015. Click here

Talks

  • A. Alajami, Y. Li., R. Bedzra, J.-W. Simon: Modeling the anisotropic inplane and out-of-plane elastic-plastic response of paper, International Conference on Plasticity, Damage, and Fracture 2019, Panama City, Panama.
  • R. Bedzra, S. Reese, J.-W. Simon: Multi-scale modelling of fibre reinforced composites exhibiting elastoplastic deformation, 88th Annual Meeting of the International Association of Applied Mathematics and Mechanics 2017, Weimar, Germany.
  • R. Bedzra, S. Reese, J.-W. Simon: Multi-scale modelling of fiber reinforced composites exhibiting elastoplastic deformation, Special workshop on Multiscale Modeling of Heterogeneous Structures 2016, Dubrovnik, Croatia.
  • R. Bedzra, S. Reese, J.-W. Simon: Multi-scale modelling of fiber reinforced composites exhibiting elastoplastic deformation, 15th European Mechanics of Materials Conference 2016, Brussels, Belgium.
  • R. Bedzra, S. Reese, J.-W. Simon: Modelling fiber reinforced composites exhibiting elastoplastic deformation, 24th International Congress of Theoretical and Applied Mechanics 2016, Montreal, Canada.
  • R. Bedzra, S. Reese, J.-W. Simon: Micro-macro modelling of fiber reinforced composites exhibiting elastoplastic deformation within the framework of multisurface plasticity, 3rd ECCOMAS Young Investigators Conference and 6th GACM Colloquium 2015, Aachen, Germany.
  • R. Bedzra, S. Reese, J.-W. Simon: Micro-meso modeling of fiber-reinforced composites exhibiting elastoplastic deformation, 86th Annual Meeting of the International Association of Applied Mathematics and Mechanics 2015, Lecce, Italy.