Dr. Reza Ghaffari

Dr. Reza Ghaffari

Member

Funding: AICES

Research

Advanced Continuum Frictional Models for Atomistic Systems

Advisor / Co. Advisor

Prof. Sauer

Thesis Title

Continuum Mechanical Models of Atomistic Surface Manifolds

Contact

AICES Graduate School
RWTH Aachen University
Schinkelstraße 2a
D-52062 Aachen
Germany

Office: 205
Phone: +49 241 80 99750
Fax: +49 241 80 628498
Email: ghaffari(AT)aices(DOT)rwth-aachen(DOT)de

Education

  • 10/2015 - 06/2019 Doctoral studies in Mechanical Engineering, Aachen Institute for Advanced Study in Computational Engineering Science, RWTH Aachen, Germany
  • 09/2011 - 02/2012 M.Sc. in Aerospace Structures, Aerospace Department, Sharif University, Iran
  • 09/2006 - 07/2010 B.Sc. in Aerospace Engineering, Aerospace Department, KNT-University, Iran

Research Interest

  • Nonlinear continuum mechanics, finite element and thermoelasticity
  • Computational contact (frictional & adhesive contact)
  • Multiscale simulation
  • Molecular mechanics and dynamics, and quantum mechanics
  • Structural dynamics and vibration of continuous systems
  • Isogeometric analysis (IGA)
  • Plasticity and damage mechanics

Publications (arranged by online publication)

2020

  • Ghaffari, R. and Sauer, R. A. (2020), A nonlinear thermomechanical formulation for anisotropic volume and surface continua. Math. Mech. Solids, 25(11):2076-2117, preprint.

2019

  • Ghaffari, R., Shirazian, F., Hu, M., and Sauer, R. A. (2019), A nonlinear hyperelasticity model for single layer blue phosphorus based on ab-initio calculations. Proc. Royal Soc. Lond. A: Math. Phys. Eng. Sci., 475:20190149. preprint.
  • Mokhalingam, A., Ghaffari, R., Gupta, S. S., and Sauer, R. A. (2019). On nonlinear vibrational properties of graphene-based structures. Carbon, 159:478-494, preprint.

2018

  • Ghaffari, R. and Sauer, R. A. (2018), Modal analysis of graphene-based structures for large deformations, contact and material nonlinearities. J. Sound Vib., 423:161-179, preprint.
  • Ghaffari, R. and Sauer, R. A. (2018), A new efficient hyperelastic finite element model for graphene and its application to carbon nanotubes and nanocones. Finite Elem. Anal. Des., 146:42-61, preprint.
  • Sauer, R. A., Ghaffari, R., and Gupta A. (2019), The multiplicative deformation split for shells with application to growth, chemical swelling, thermoelasticity, viscoelasticity and elastoplasticity. Int. J. Solids Struct.,174-175:53-68, preprint.
  • Shirazian, F., Ghaffari, R., Hu, M., and Sauer, R. A. (2018), Hyperelastic material modeling of graphene based on density functional calculations. Proc. Appl. Math. Mech., 18:e201800419.

2017

2015

  • Ghaffari, R., Alipour, K., Solgi, S., Irani, S., and Haddadpour, H. (2015), Investigation of surface stress effect in 3D complex nano parts using FEM and modified boundary Cauchy-Born method. J. Comput. Sci., 10:1-12.

Presentations

  • 88th GAMM Annual Meeting, Weimar, Germany (March 6-10, 2017)
  • 89th GAMM Annual Meeting, Munich, Germany (March 19-23, 2018)
  • ESMC10: 10th European Solid Mechanics Conference, Bologna, Italy (July 2-6, 2018)
  • EUROMECH Colloquia 603: Dynamics of micro and nano electromechanical systems: Multi-field modelling and analysis, Porto, Portugal (September 5-7, 2018)
  • 90th GAMM Annual Meeting, Vienna, Austria (February 18-22, 2019)
  • International Conference on Nonlinear Solid Mechanics (ICoNSoM), Rome, Italy (June 16-19, 2019)
  • CM4P, Porto, Portugal  (July 15-17, 2019)

Research Gallery

Graphene Structures
Indentation of graphene, and bending and twisting of carbon nanotubes
(Ghaffari et al., 2018)
Nonlinear modal analysis of adhesive graphene sheets, and carbon nanotubes
(Ghaffari and Sauer, 2018)
Bending and twisting of carbon nanocones
(Ghaffari and Sauer, 2018)

Modified Boundary Cauchy-Born
Relaxation of nanogear and nanopyramid
(Ghaffari et al., 2015)
Go back