Programme

Nano-structured solids are an attractive group of modern engineering materials due to a range of properties in which they are superior to their coarse grained counterparts. In particular, this applies to their mechanical strength, fatigue resistance, faster hydrogen storage kinetics, and a number of other properties. In recent years, bulk nanomaterials suitable for structural applications have emerged due to the development of improved processing techniques, and there is a definite need to address their mechanical response by developing physically based nanomechanics.
Application of nanomaterials in new products hinges on a better understanding of the phenomena that control their mechanical properties. Simple extensions of the available models for mechanical properties of conventional materials do not hold for the nano-scale (cf. e.g. the breakdown of the Hall-Petch relationship). This calls for novel approaches in this area. One of them has been based on the concept of phase mixture modelling, while statistical methods have also been proposed as an alternative. Modelling at deeper length scales, including molecular dynamics and discrete dislocation, has been advancing fast, and the results provide a solid platform for developing constitutive models at a continuum level. A connection between the macroscopic quantities, such as stress and strain, and the properties at various length scales, including the nano scale, often needs to be established for an adequate constitutive description. A further important aspect is the non homogeneity of nanomaterials. Many materials that may be regarded as homogeneous at macro level exhibit heterogeneity at micro or nano level. Gradient plasticity approaches may be a way of addressing this issue.
Most real materials are so complex and irregularly heterogeneous that their description involves modelling in probabilistic terms. Methods of the theory of random fields, both continuous and discrete, are of special importance in this regard.
The aim of the Symposium is to provide a platform for exchanging information on the recent development in the field of mechanics of nanomaterials by bringing together diverse communities engaged in this nascent field.

Topics:
1. Phase mixture modelling
2. Molecular dynamics simulations
3. Discrete dislocation dynamics
4. Description of random microstructures.
5. Stochastic modelling of nanomaterials.
6. Random microstructure and fracture.
7. Random microstructure and fatigue.
8. Random microstructure vs. macroscopic strain and stress fields.
9. Gradient plasticity approaches.

Invited Speakers

  • Prof. Ryszard Pyrz, Aalborg University, Denmark (abstract)
  • Prof. Lasar Shvindlerman, Russian Acad. Sci. and RWTH Aachen, Germany (abstract)
  • Prof. Hyoung Seop Kim, Department of Materials Science and Engineering, POSTECH, Pohang 790-784, Korea (abstract)
  • Prof.Boris Yakobson, Rice University, USA (abstract)
  • Prof. Alain Molinari, University of Metz. France (abstract)

Scientific Committee

  • Prof. Krzysztof J. Kurzydlowski, Warsaw University of Technology, Poland
  • Prof . Evgeny Morozov, The University of New South Wales, Australia
  • Prof. Lallit Anand, MIT, Cambridge, Massachusetts, USA
  • Prof. Kazimierz Sobczyk, Polish Academy of Sciences, Warsaw, Poland
  • Prof. Yiu-Wing Mai, Univ. of New South Wales, Sydney, Australia
  • Prof. I. Ovid'ko, Russian Academy of Sciences, St.Petersburg, Russia
  • Prof. H. Van Swygenhoven-Moens, Paul Scherrer Institute, Switzerland
  • Prof. Peter Gumbsch, Fraunhofer Institute, Germany
  • Prof. Shaker Meguid, University of Toronto, Canada

SCHEDULE  OF  PRESENTATIONS

Allocated time: 30 min. for Keynote Presentations, 15 min. for Contributed Presentations

MONDAY, SEP. 15th

14:00 – 15:30

KEYNOTE: 

Ryszard Pyrz,  Atomic-continuum equivalence at nanoscale

CONTRIBUTED:

1.      Toby D. Young et al., Molecular statics simulation of nanoindentation on nanocrystalline copper

2.      Pier Luca  Palla et. al., Molecular dynamics results showing continuum theory failure in describing the elastic behavior of nanoparticles embedded in Si-based systems

3.      Viktor I. Belko et al., Effect of hydrostatic pressure on defect diffusion in silicon: molecular dynamics simulations

TUESDAY, SEP. 16 th

9:00 – 10: 30

KEYNOTE:

Sebastien  Mercier, Alain Molinari and  Yuri Estrin, Homogenization of elastic-viscoplastic heterogeneous materials: Application to nanomaterials

CONTRIBUTED:

1.     Brian Derby and Rui Dou, Strain gradients and the strength of nanoporous gold

2.     Pierre  Hirel et al., Study of dislocation nucleation activation from surface step by atomistic calculations

11:00 – 12: 30

KEYNOTE:

Lazar S. Shvindlerman and Günter Gottstein, Motion of Connected Grain Boundaries and Stability of Nanocrystalline Systems

CONTRIBUTED:

1.      Gaetan  Raymond et al., Characterisation of silicon nitride thin films used as stressor liners on CMOS FETs.

2.      Massimo Celino and Simone Giusepponi, MgH_{2}-Mg interface: a first-principle olecular dynamics characterization

WENDESDAY , SEP. 17th

9:00 – 10: 30

KEYNOTE:

Boris I. Yakobson,  Nanotubes in global warming: From dynamic topology in superplasticity to hyperthermia in cancer treatment

CONTRIBUTED:

1.      Grzegorz Litak, On buckling of carbon nanotubes

2.      Jung Mo Seo et al., Characterization of Mechanical Properties of Nanowires by MEMS Actuator

3.      Rui Dou  and Brian Derby, The strength of gold nanowires

4.      Huijun Wu and Jintu Fan, A novel three-tier reflective nanofibre structure for high performance thermal resistant but water vapor permeable insulations

11:00 – 12: 30

KEYNOTE:

Hyoung Seop Kim and Yuri Estrin, Phase Mixture Model and Finite Element Simulation of Nanostructured Metals

CONTRIBUTED:

1.      Malgorzata Lewandowska et al., Tailoring mechanical properties by grain refinement and particle redistribution

2.      Tae Kim et al., Mechanical Properties of Lead Free Solder Material at High Temperature

POSTER PRESENTATIONS:

MONDAY, SEP. 15th   

15:50 – 17: 20

WENDESDAY , SEP. 17th

15:50 – 17: 20

1.      Romuald Dobosz et. al., Modelling of plastic deformation of nano-polycrystalline materials

2.      Tatyana A. Ryumshina and Peter Poliakov, Influence of internal stresses on the properties of solids

3.      Karolina A. Rzepiejewska-Malyska et al., Deformation mechanisms in TiN/NbN multilayer thin films

4.       Olha Kyryliv et al., Peculiarities of structural changes and diffusion distribution of alloying elements in titanium alloys after mechanical-pulse  treatment.

5.      Yoshiki Takagi et al. , Hydrogen-free CVD nano diamond particle synthesis with graphite rod heating

6.      Yoshiki Takagi et al.,      Characterization of the interface between nano crystalline diamond and Silicon substrate

7.      Thomas B. Tengen et al., Stochastic Approach To The Changes In The Mechanical Properties Of Nano-Crystalline Materials Induced By Grain Growth

8.      Lawrence C. Whitmore, Transmission Electron Microscopy Studies of Nano Indented Zirconia Layers on Silicon Wafer Substrates

Organisers

  • Prof. Radoslaw Iwankiewicz
    Institute of Mechanics and Ocean Engineering
    Hamburg University of Technology
    Eissendorferstr. 42
    21073 Hamburg
    Germany
    Phone: +49 40 42878 2333
    Fax: +49 40 42878 2028
    E-mail: [email protected]
  • Prof. Yuri Estrin
    CSIRO Professorial Fellow
    Department of Materials Engineering
    Monash University
    Clayton, Victoria 3800
    Australia
    Phone : 61 (0)3 9905 9599
    Fax : 61 (0)3 9905 4940E-Mail: [email protected]

Contact

Radoslaw Iwankiewicz
Hamburg University of Technology
Eissendorfer Str. 42, 21073 Hamburg, Germany
Phone number: + 49 40 42878 2333
Fax number: + 49 40 42878 2028
E-mail address: [email protected]