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Logo: ISD/Leibniz Universität Hannover
Logo Leibniz Universität Hannover
Logo: ISD/Leibniz Universität Hannover
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Dr.-Ing. Aamir Dean

Head of the subgroup "Fatigue"

 

Appelstr. 9A

30167 Hannover
Room 801

Tel.:      +49-511-762-4519
Fax:
      +49-511-762-2236
E-mail:
  a.deanisd.uni-hannover.de

Consultation hours: by appointment

Teaching Activities

Supervision of student works:

  • Project (B.Sc.) & bachelor theses, seminar (M.Sc.) and master theses are welcome by arrangement.

Tutorial Lesson:

Research Focus

  • Constitutive modeling of Fiber Reinforced Polymers (FRP) composites
  • Fatigue modeling of FRP composites
  • FE modeling and simulation of hybrid metal-composites mechanical joining processes

Research Projects

  • Finite element analyses and simulation of the failure of short-fiber reinforced thermoplastics and aluminium blanks by clinching (Priority program 1640 - joining by plastic deformation)

Journal Papers

A. Dean, N. Grbic, R. Rolfes, A. Behrens (2019): Macro-mechanical Modeling and Experimental Validation of Anisotropic, Pressure- and Temperature-dependent Behavior of Short Fiber Composites, Composite Structures 211, 630–643
DOI: 10.1016/j.compstruct.2018.12.045

A. Dean, N. Grbic, R. Rolfes, S. Hübner, A. Behrens (2019): A FEM-based Virtual Test-rig for Hybrid Metal-Composites Clinching Joints, Material Science and Engineering Technology (Accepted)

A. Dean, N. Safdar, R. Rolfes (2019): A Co-Rotational Based Anisotropic Elasto-Plastic Model for Geometrically Non-Linear Analysis of Fibre Reinforced Polymer Composites: Formulation and Finite Element Implementation, Materials, 12(11), 1816
DOI: https://doi.org/10.3390/ma12111816

I. Koch, G. Just, M. Brod, J. Chen, A. Doblies, A. Dean, M. Gude, R. Rolfes, C. Hopmann, B. Fiedler (2019): Evaluation and Modeling of the Fatigue Damage Behavior of Polymer Composites at Reversed Cyclic Loading, Materials 2019, 12(11), 1727
DOI: https://doi.org/10.3390/ma12111727

M. Brod, G. Just, A. Dean, E. Jansen, I. Koch, R. Rolfes, M. Gude (2019): Numerical modelling and simulation of fatigue damage in carbon fibre reinforced plastics at different stress ratios, Thin-Walled Structures, (139), p. 219-231
DOI: https://doi.org/10.1016/j.tws.2019.03.005

A. Dean, R. Rolfes (2018): FE modeling and simulation framework for the forming of hybrid metal-composites clinching joints, Thin-Walled Structures, Volume 133, December 2018, Pages 134-140
DOI: https://doi.org/10.1016/j.tws.2018.09.034

A. Dean, R. Rolfes, A. Behrens, S. Hübner, A. Chugreev & N. Grbic (2018): Parametric Study of Hybrid Metal-Composites Clinching Joints, Key Engineering Materials 767, 413-420
DOI: https://doi.org/10.4028/www.scientific.net/KEM.767.413

A. Dean, S. Sahraee, J. Reinoso & R. Rolfes (2017): A new invariant-based thermo-plastic model for finite deformation analysis of short fibre reinforced composites: Development and numerical aspects, Composites Part B: Engineering 125, 241–258

A. Dean, S. Sahraee, K. Özenc, J. Reinoso, R. Rolfes & M.Kaliske (2017): A thermodynamically consistent framework to couple damage and plasticity microplane-based formulations for fracture modeling: Development and algorithmic treatment, International Journal of Fracture 203, 115–134

A. Dean, J. Reinoso, S. Sahraee & R. Rolfes (2016): An invariant-based anisotropic material model for short fiber-reinforced thermoplastics: Coupled thermo-plastic formulation, Composites Part A: Applied Science and Manufacturing 90, 186–199

A. Dean, S. Sahraee, J. Reinoso & R. Rolfes (2016): Finite deformation model for short fibre reinforced composites: Application to hybrid metal-composite clinching joints, Composite Structures 151, 162–171

Proceedings

M. Brod, A. Dean, R. Rolfes (2019): An energy-based model for the fatigue analysis of fiber reinforced composite structures under load reversals, Review of Aeronautical Fatigue Investigations in Germany during the Period April 2017 to March 2019, 36th Conference & 30th Symposium of the International Committee on Aeronautical Fatigue and Structural Integrity (ICAF), Krakow, Poland

A. Dean, R. Rolfes (2018): Co-rotational Formulation and Implementation of an Invariant-based Model for Geometrically Nonlinear Analyses of Composites, Proceedings of the 2nd Conference on Civil Engineering (CCE2018), Pages 41-47, Khartoum (Sudan)

A. Dean, R. Rolfes, A. Behrens, A. Bouguecha, S. Hübner, C. Bonk & N. Grbic (2017): Finite strain anisotropic elasto-plastic model for the simulation of the forming and testing of metal/short fiber reinforced polymer clinch joints at room temperature, AIP Conference Proceedings 1896, Paper No. 030037

B. Daum, A. Dean, R. Rolfes (2017): A systematic approach to invariant-based anisotropic non-associative plasticity for fiber reinforced composites, 21th International Conference on Composites Materials (ICCM21), Xi'an, China

A. Dean, J. Reinoso, S. Sahraee & R. Rolfes (2015): An invariant-based anisotropic thermo-plastic material model for short fiber reinforced thermoplastics , 20th International Conference on Composites Materials (ICCM20), Copenhagen, Denmark

Chapter in Books

A. Dean, J. Reinoso, S. Sahraee, B. Daum & R. Rolfes (2018): Invariant-based finite strain anisotropic material model for fiber-reinforced composites, Sorić J., Wriggers P., Allix O. (eds) Multiscale Modeling of Heterogeneous Structures. Lecture Notes in Applied and Computational Mechanics, vol 86. Springer, Cham
ISBN: 9783319654621

Technical Reports

S. Scheffler, A. Dean, B. Daum & R. Rolfes (2016): Anwendung eines virtuellen Versuchsstandes zur systematischen numerischen Untersuchung hybrider Fügetechnologien (TransHybrid) , Institut für Statik und Dynamik, Leibniz Universität Hannover

Presentations

M. Brod, C. Gerendt, A. Dean, R. Rolfes (2019): Modeling and Simulation of Fatigue Damage behavior in Carbon Composites under Tension-Compression Load Reversals, CCeV-Thementag „Ermüdung und strukturelle Integrität von Composites“, St. Valentin, Austria

A. Dean, H. Madhusoodanan, C. Gerendt, M. Brod, E. Jansen & R. Rolfes (2018) (2018): Applications of a physically based fatigue damage model for composite and hybrid structures., FULLCOMP Workshop 2018, Bordeaux, France

A. Dean, R. Rolfes, B. A. Behrens, S. Hübner, A. Chugreev, N. Grbic (2018): Parametric Study and Virtual Testing of Hybrid Metal-Composites Clinching Joints, 8th International Conference on Tribology in Manufacturing Processes & Joining by Plastic DeformationAt: Elsinore, Denmark

Aamir Dean, Raimund Rolfes (2018): FE Simulation Framework for the Virtual Testing of Hybrid Metal-Composites Clinching Joints, IRTG 1627 annual Workshop, Roscoff, France

A. Dean, R. Rolfes, A. Behrens, A. Bouguecha, S. Hübner, C. Bonk & N. Grbic (2017): Finite strain anisotropic elasto-plastic model for the simulation of the forming and testing of metal/short fiber reinforced polymer clinch joints at room temperature , 20th International ESAFORM Conference on Material Forming (ESAFORM ), Dublin, Ireland

A. Dean, J. Reinoso, S. Sahraee & R. Rolfes  (2016): Finite element analyses and simulation of the failure of short-fiber reinforced thermoplastics and aluminium blanks by clinching, IRTG 1627 Workhop, Filderstadt, Germany

A. Dean, S. Sahraee, J. Reinoso & R. Rolfes (2016): A novel finite deformation model for short fiber reinforced composites , Multiscale Modeling of Heterogeneous Structures (MUMO), Dubrovnik, Croatia

S. Scheffler, A. Dean & R. Rolfes (2016): Prediction of strength and global failure behavior of complex joint configurations in composites, European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS), Crete Island, Greece

A. Dean, J. Reinoso, M. Vogler, R. Rolfes, A. Behrens, A. Bouguecha, M. Vucetic & N. Grbic  (2015): Numerische und experimentelle Untersuchungen zum Versagen beim Clinchen von kurzfaserverstärkten Thermoplasten mit Aluminium-Blechwerkstoffen, SPP1640 Workshop, Hanau, Germany

A. Dean, J. Reinoso, S. Sahraee & R. Rolfes (2015): A thermodynamically consistent framework to couple microplane damage and plasticity models , IV International Conference on Computational Modeling of Fracture and Failure of Materials and Structures (CFRAC15), Paris, France

S. Scheffler, A. Dean & R. Rolfes (2015): On the analysis of composite bolted joints using a new progressive damage approach , 5tth ECCOMAS Conference on Mechanical Response of Composites (ECCOMAS), Bristol, UK

Background

  • seit 2017: Research associate (PostDoc) at the Institute of Structural Analysis 
    (Leibniz Universität Hannover)
  • 2014 - 2017: Research associate (PhD student) at the Institute of Structural Analysis
    (Leibniz Universität Hannover), PhD thesis "Material Modeling of Short Fiber Reinforced Polymeric Composites: Theory, Numerical Aspects, and Applications"
  • 2011 – 2013: Master’s programme „Advanced Computational and Civil Engineering Structural Studies (ACCESS)“ (TU Dresden), master thesis Formulation and implementation of thermodynamics-based microplane material model for quasi-brittle materials with Drucker-Prager yield criterion (Institute of Structural Analysis)
  • 2005 – 2010: Bachelor’s programme „Civil Engineering“ (Sudan University of Science and technology)