Univ.-Prof. Dipl.-Ing. Dr.techn. Roman Lackner

Postadresse

Universität Innsbrucklackner

Institut für Konstruktion und Materialwissenschaften, Arbeitsbereich Materialtechnologie

Technikerstraße 13, 5. OG, Raum 523

A-6020 Innsbruck, Austria

Tel.: +43 (0)512/507-63500

Email: Roman.Lackner@uibk.ac.at

 

Forschungsinteresse

  • Materialoptimierung im Bereich Herstellung, Verarbeitung und Recycling
  • modellbasierte Dauerhaftigkeitsprognose
  • neuartige experimentelle Methoden

Lehrveranstaltungen

Publikationen: Ausgewählte Publikationen in wissenschaftlichen Zeitschriften (seit 2003)

Neuartige experimentelle Methoden und Ergebnisauswertung

  • A. Jäger, R. Lackner, J. Eberhardsteiner. Identification of viscoelastic properties by means of nanoindentation taking the real tip geometry into account. Meccanica 42 (3): 293-306 (2007). 
  • Ch. Pichler, R. Lackner, F.-J. Ulm. Scaling relations for viscoelastic-cohesive conical indentation. International Journal of Materials Research, 99: 836-846 (2008).  
  • A. Jäger, R. Lackner. Identification of Viscoelastic Model Parameters by Means of Cyclic Nanoindentation Testing. International Journal of Materials Research, 99: 829-835 (2008).
  • A. Jäger, R. Lackner. Finer-scale Extraction of Viscoelastic Properties from Nanoindentation Characterized by Viscoelastic-Plastic Response. Strain, 45: 45-54 (2009).  
  • Ch. Pichler, R. Lackner. Upscaling of viscoelastic properties of highly-filled composites: Investigation of matrix-inclusion-type morphologies with power-law viscoelastic material response. Composites Science and Technology 69 (2009) 2410-2420. 
  • T. Niederkofler, A. Jäger, R. Lackner. Identification of model parameters from elastic/elasto-plastic spherical indentation. International Journal of Material Research (2009)
  • X. Liu, M. Zeiml, R. Lackner,H. Mang. Upscaling of permeability of porous materials: First insight
    into the effect of pore-space characteristics. International Journal for Multiscale Computational Engineering 8/1, S. 103 - 112 (2010)

  • Ch. Pichler, R.  Lackner. Sesqui-power Scaling of Elasticity of Closed-Cell Foams. Materials Letters 73, S. 212 - 215. (2012)

  • Ch. Pichler, G. Metzler, Chr. Niederegger, R. Lackner. Thermo-mechanical optimization of porous building materials based on micromechanical concepts: Application to load-carrying insulation materials. Composites Part B: Engineering 13/3, S. 1015 - 1023. (2012)
  • R. Traxl, R. Lackner, Roman. Micromechanics-Based Modelling of Post-Yield Behavior of Porous Materials and
    its Effect on Hardness Properties from Conical Indentation. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS Volume 61, Issue 8, S. 1655 - 1669. (2013)
  • Ch. Pichler, R. Lackner. Sesqui-power scaling of plateau strength of closed-cell foams. Material Science and Engineering 580, S. 313 - 321. (2013)
  • Y. Zhang, R. Lackner, M. Zeiml. Strong-disconitniuty approach for high-order elements: Energy-based crack-tracking strategy and validation. Computer Methods In Applied Mechanics And Engineering. (submitted)
  • S. Bauer, R. Lackner. Gradient-Based Adaptive Discontinuity Layout Optimization for the Prediction of Strength Properties in Matrix-Inclusion Materials. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES. (submitted)

Zement- und Betontechnologie

  • R. Lackner, H.A. Mang. Cracking in Shotcrete Tunnel Shells. Engineering Fracture Mechanics, 70(7-8): 1047-1068 (2003).
  • R. Lackner, H.A. Mang. Scale Transition of Steel-Concrete Interaction I: Model. Journal of Engineering Mechanics (ASCE), 129(4): 389-402 (2003).
  • R. Lackner, H.A. Mang. Scale Transition of Steel-Concrete Interaction II: Applications. Journal of Engineering Mechanics (ASCE), 129(4): 403-413 (2003).
  • R. Lackner, H.A. Mang. Chemoplastic Material Model for the Simulation of Early-Age Cracking: from the Constitutive Law to Numerical Analyses of Massive Concrete Structures. Cement and Concrete Composites, 26(5): 551-562 (2004).
  • Ch. Pichler, R. Lackner, H.A. Mang. Multiscale Model for Autogenous Shrinkage of Early-Age Cement-Based Materials. Engineering Fracture Mechanics, 74(1-2): 34-58 (2007).
  • Ch. Pichler, R. Lackner. Mehrskalenmodellierung von jungen zementgebundenen Baustoffen: Anwendung im Rahmen der hybriden Berechnung von Spritzbetonschalen. Der Bauingenieur, 82(11):471-478 (2007). In German.
  • K. Meinhard, R. Lackner. Multi-phase hydration model for prediction of hydration-heat release of blended cements, Cement and Concrete Research, 38(6): 794-802 (2008).
  • Ch. Pichler, R. Lackner. A Multiscale Micromechanics Model for Early-Age Basic Creep of Cement-Based Materials. International Journal of Computers and Concrete, 4: 295-328 (2008)
  • Ch. Pichler, R.Lackner. Identification of Logarithmic-type Creep of Calcium-Silicate-Hydrates (CSH) by Means of Nanoindentation. Strain, 45(1):17-25 (2009) 
  • R. Wang, R. Lackner, P.-M. Wang. Effect of Styrene-Butadiene Rubber Latex on Mechanical Properties of Cementitious Materials Highlighted by Means of Nanoindentation. Strain 47, 117-126 (2011) 

  • Ch. Pichler, Ch.  Niederegger, R. Lackner. Mehrskalenmodellierung vonThermobeton auf Glasschaumgranulatbasis: Charakterisierung udn Prognose der mechanischen und thermischen Eigenschaften. Bauingenieur 2011/9, S. 365 - 370 (2011).
  • Ch. Pichler, A.  Saxer, R. Lackner. Differential-Scheme Based Dissolution/Diffusion Model for Calcium
    Leaching in Cement-Based Materials Accounting for Mix Design and Binder Composition. Cement and Concrete Research 42/5, S. 686 - 699. (2012)
  • Y. Zhang, Chr. Pichler, Y. Yuan, M. Zeiml, R. Lackner. Micromechanics-based multifield framework for early-age concrete. Engineering Structures 47, S. 16 - 24. (2013)

Bitumen- und Asphalttechnologie

  • A. Jäger, R. Lackner, Ch. Eisenmenger-Sittner, R. Blab. Identification of Four Material Phases in Bitumen by Atomic Force Microscopy. International Journal of Road Materials and Pavement Design, 5(9): 9-24 (2004).
  • R. Lackner, M. Spiegl, R. Blab, J. Eberhardsteiner. Is Low-Temperature Creep of Asphalt Mastic Independent of Filler Shape and Mineralogy? - Arguments from Multiscale Analysis. Journal of Materials in Civil Engineering (ASCE), 17(5): 485-491 (2005).
  • K. Stangl, A. Jäger, R. Lackner. Microstructure-based Identification of Bitumen Performance. International Journal of Road Materials and Pavement Design, 7:111-142 (2006).
  • M. Wistuba, R. Lackner, M. Spiegl, R. Blab. Low Temperature Performance Prediction of Asphalt Mixtures - New Approach Based on Fundamental Test Methods and Numerical Modeling. International Journal of Pavement Engineering, 7(2): 121-132 (2006).
  • A. Jäger, R. Lackner, K. Stangl. Microscale Characterization of Bitumen - Back-Analysis of Viscoelastic Properties by Means of Nanoindentation. International Journal of Materials Research, 98(5): 404-413 (2007).
  • K. Stangl, A. Jäger, R. Lackner. The Effect of SBS Modification on the Characteristics and Performance of Bitumen. Chemical Monthly, 138(4): 301-307 (2007).
  • E. G. Aigner, R. Lackner, M. Wistuba, M. Spiegl, R. Blab, J. Eberhardsteiner. Integration Schemes and Parameter Identification in Viscoelastic Modeling of Asphalt: Application to Low-Temperature Assessment of Flexible Pavements. Submitted for publication.
  • J. Füssl, R. Lackner, J. Eberhardsteiner, H.A. Mang. Failure Modes and Effective Strength of Two-phase Materials Determined by Means of Numerical Limit Analysis. Acta Mechanica, 195(1-4): 185-202 (2008).
  • E.G. Aigner, R. Lackner, Ch. Pichler. Multiscale Properties of Asphalt Concrete. Journal of Materials in Civil Engineering (ASCE) 21(12): 771-780 (2008).
  • R. Blab, K. Kappl, E. Aigner, R. Lackner. A Finite-Element Approach to Predict Permanent Deformation Behaviour of Hot Mix Asphalt Based on Fundamental Material Tests and Advanced Theological Models. Strain, 45, 3-16 (2009)
  • J. Füssl, R. Lackner. Multiscale fatigue model for bituminous mixtures. INTERNATIONAL JOURNAL OF FATIGUE 33/11, S. 1435 - 1450 (2011).
  • E. Aigner, R. Lackner, J. Eberhardsteiner. Multiscale viscoelastic-viscoplastic model for the prediction of
    permanent deformation in flexible pavements. International Journal for Multiscale Computational Engineering 10/6, S. 615 - 634. (2012)
  • Chr. Pichler, R. Lackner, E. Aigner. Generalized self-consistent scheme for upscaling of viscoelastic properties of highly-filled matrix-inclusion composites – Application in the context of multiscale modeling of bituminous mixtures. Composites Part B: Engineering 43/2, S. 457 - 464. (2012)
  • J. Füssl, R. Lackner, J. Eberhardsteiner. Creep response of bituminous mixtures - rheological model and
    microstructural interpretation. MECCANICA. (accepted)

Brand und Brandschutz

  • M. Zeiml, D. Leithner, R. Lackner, H.A. Mang. How Do Polypropylen Fibers Influence the Spalling Behavior of Concrete Linings? Cement and Concrete Research, 36(5): 929-942 (2006).
  •  M. Zeiml, R. Lackner, H.A. Mang. Experimental Insight into Spalling Behavior of Concrete Tunnel Linings under Fire Loading. Acta Geotechnica, 3: 295-308 (2008).
  • M. Zeiml, D. Leithner, R. Lackner, J. Eberhardsteiner. Identification of residual gas-transport properties of concrete subjected to high termperatures. Cement and Concrete Research, 38(5): 699-716 (2008).
  • M. Zeiml, R. Lackner, R. Pesavento, B.A. Schrefler. Thermo-hydro-chemical couplings considered in safety assessment of shallow tunnels subjected to fire load. Fire Safety Journal 43, 83-95 (2008)
  • A. Galek, H. Moser, Th. Ring, M. Zeiml, J. Eberhardsteiner, R. Lackner. Mechanical and transport properties of concrete at high temperatures. Applied Mechanics and Materials 24-25, S. 1 - 11 (2010)
  • R. Ring, Ch. Wikete,H. Kari, M. Zeiml, R. Lackner. Der EInfluss des Rechen- und Materialmodells auf die Strukturantwort bei der Simulation von Tunnel unter Brandbelastung. Bauingenieur 88, S. 1 - 10. (2013)
  • T. Ring, M. Zeiml, R. Lackner, J. Eberhardsteiner. Experimental Investigation of Strain Behaviour of Heated Cement Paste and Concrete. Strain. An international journal for experimental mechanics 49/3, S. 249 - 256 (2013)
  • T. Ring, M. Zeiml, R. Lackner, R. Underground concrete frame structures subjected to fire loading: Part II -
    re-analysis of large-scale fire tests. Engineering Structures. (online first)
  • T. Ring, M. Zeiml, R. Lackner. Underground concrete frame structures subjected to fire loading: Part I –
    Large-scale fire tests. Engineering Structures. (online first)

Bodenvereisung und -vermörtelung (Düsenstrahlverfahren)

  • R. Lackner, A. Amon, H. Lagger. Artificial Ground Freezing of Fully-Saturated Soil: the Thermal Problem. Journal of Engineering Mechanics (ASCE), 131(2): 211-220 (2005).

  • R. Lackner, Ch. Pichler, A. Kloiber. Artificial Ground Freezing of Fully-Saturated Soil: Viscoelastic Behavier. Journal of Engineering Mechanics (ASCE), 134(1): 1-11 (2008).