Univ. Prof. Dr. Otmar Kolednik

Function: Senior Scientist, retired
Room: 114
Phone: +43 (0) 3842-804-114
E-Mail: otmar.kolednik(at)oeaw.ac.at

Research

1. Deformation, Fatigue and Fracture

2. Micro- and Nanomechanics and Complex Materials

Methods

Deformation, fatigue and fracture of materials and composites, theoretical concepts of non-linear fracture mechanics, numerical modelling of damage initiation and crack growth, materials and component design, quantitative fracture surface analysis, local deformation analysis, finite element modeling, configurational forces concept

Teaching

Nichtlineare Burchmechanik – Theorie und Anwendung, Werkstoff und Bruchzähigkeit

Projects

Deformation- and fracture behavior of advanced materialsJ-integral as driving force parameter for elastic-plastic materialsDevelopment of new fracture resistant materials and components, Design concepts for damage resistant materials, Behavior of cracks in inhomogeneous materials

Publications

  • In-situ elastic-plastic fracture mechanics on the microscale by means of continuous dynamical testing
    M. Alfreider, D. Kozic, O. Kolednik, D. Kiener
    Mater. Des.148, 177-187 (2018)
  • To the design of highly fracture-resistant composites by the application of the yield stress inhomogeneity effect
    M. Sistaninia, R. Kasberger, O. Kolednik
    Composite Structures185, 113-122 (2018)
  • The effect of residual stresses and strain reversal on the fracture toughness of TiAl alloys
    F. Appel, J.D.H. Paul, P. Staron, M. Oehring, O. Kolednik, J. Predan, F.D. Fischer
    Materials Science & Engineering A709, 17-29 (2018)
  • Crack driving force in twisted plywood structures
    F.D. Fischer, O. Kolednik, J. Predan, H. Razi, P. Fratzl
    Acta Biomater.55, 349-359 (2017)
  • Microstructural Effects on the Toughness of a High Co-Ni Steel
    M. Gruber, G. Ressel, S. Ploberger, S. Marsoner, O. Kolednik, R. Ebner
    Adv. Eng. Mater.19, UNSP 1600633 (2017)
  • Improving strength and toughness of materials by utilizing spatial variations of the yield stress
    M. Sistaninia, O. Kolednik
    Acta Mater.122, 207-219 (2017)
  • Thermal shock resistance of magnesia spinel refractories-Investigation with the concept of configurational forces
    D. Gruber, M. Sistaninia, C. Fasching, O. Kolednik
    J. Eur. Ceram. Soc.36, 4301-4308 (2016)
  • The mechanics of tessellations - bioinspired strategies for fracture resistance
    P. Fratzl, O. Kolednik, F.D. Fischer, M.N. Dean
    Chem. Soc. Rev.45, 252-267 (2016)
  • Improvement of fatigue life by compliant and soft interlayers
    O. Kolednik, J. Zechner, J. Predan
    Scr. Mater.113, 1-5 (2016)
  • Overload effect revisited - Investigation by use of configurational forces
    W. Ochensberger, O. Kolednik
    Int. J. Fatigue83, 161-173 (2016)