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

  • 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)
  • On problems with the determination of the fracture resistance for materials with spatial variations of the Young’s modulus
    R.D. Fischer, J. Predan, R. Müller, O. Kolednik
    International Journal of Fracture, 23-38 (2014)
  • A new basis for the application of the J -integral for cyclically loaded cracks in elastic–plastic materials
    W. Ochensberger, O. Kolednik
    International Journal of Fracture, 77-101 (2014)
  • Die Versagensmechanismen pressgehärteter und hochfester Stähle im Dreipunkt-Biegeversuch
    K.B. Benedyk, A. Pichler, T. Kurz, O. Kolednik
    BHM, 122-129 (2014)
  • Improvements of strength and fracture resistance by spatial material property variations
    O. Kolednik, J. Predan, R.D. Fischer, P. Fratzl
    Acta Materialia, 279-294 (2014)