Univ. Prof. Dr. Otmar Kolednik

Function: Group Leader
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

  • 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)
  • Miniaturized fracture experiments to determine the toughness of individual films in a multilayer system
    R. Treml, D. Kozic, R. Schöngrundner, O. Kolednik, H.P. Gänser, R. Brunner, D. Kiener
    Extreme Mechanics letters8, 235-244 (2016)
  • Mechanical property enhancement in laminates through control of morphology and crystal orientation
    A. Zeilinger, R. Daniel, M. Stefenelli, B. Sartory, L. Chitu, M. Burghammer, T. Schoeberl, O. Kolednik, J. Keckes, C. Mitterer
    J. Phys. D-Appl. Phys.48, ARTN 295303 (2015)
  • Design of fracture resistant composites by utilizing spatial material property variations
    M. Sistaninia, O. Kolednik
    (2015)
  • Physically correct assessment of fatigue crack growth in elastic–plastic materials with the J-integral
    W. Ochensberger, O. Kolednik
    (2015)
  • Physically appropriate characterization of fatigue crack propagation rate in elastic-plastic materials using the -integral concept
    W. Ochensberger, O. Kolednik
    Int. J. Fract.192, 25-45 (2015)
  • Effect of a single soft interlayer on the crack driving force
    M. Sistaninia, O. Kolednik
    Engineering Fracture Mechanics, 21-41 (2014)