Research
The main areas of research topics are related to
- numerical modelling of concrete and non-linear FE-analyses of concrete structures
- numerical modelling of rock and shotcrete and non-linear FE-simulations of tunneling
- and numerical modelling of partially saturated soils, including finite element analyses of multi-phase problems.
Experimental studies are carried out to validate numerical models, among other things.
The results of contract research and funded research projects are published in international journals. Below you will find a selection of these publications; the complete list can be found in the research performance documentation of the University of Innsbruck under publications and presentations. Many of these publications were produced in connection with dissertations:
Constitutive modeling of orthotropic nonlinear mechanical behavior of hardened 3DPC
Authors: Thomas Mader, Magdalena Schreter-Fleischhacker, Olena Shkundalova, Matthias Neuner, Günter Hofstetter
Journal: Acta Mechanica
DOI: 10.1007/s00707-023-03706-z
A gradient enhanced transversely isotropic damage plasticity model for rock
Authors: Thomas Mader, Magdalena Schreter, Günter Hofstetter
Journal: International Journal for Numerical and Analytical Methods in Geomechanics
DOI: 10.1002/nag.3327
On the influence of direction-dependent behavior of rock mass in simulations of deep tunneling
Authors: Thomas Mader, Magdalena Schreter, Günter Hofstetter
Journal: Applied Sciences
DOI: 10.3390/app12178532
Tunneling Simulation
3D and 2D finite element simulations of deep tunnel advance: A numerical study on the Brenner Base Tunnel (M. Neuner, M. Schreter, P. Gamnitzer, G. Hofstetter; in Comput Geotech 119 (2020) 103355).
Evaluation of Material Models for Concrete
and application for anchor channels (Neuner, M., Hofer, P., and Hofstetter, G. (2022). “On the Prediction of Complex Shear Dominated Concrete Failure by Means of Classical and Higher Order Damage-Plasticity Continuum Models”. In: Engineering Structures 251).
Investigation of Tensile Creep
of a Normal Strength Overlay Concrete. (Drexel, Martin; Theiner, Yvonne; Hofstetter, Günter; in: Materials 2018, 11, 993.)
Evaluation of the Implicit Gradient-Enhanced Regularisation
of a Damage-Plasticity Rock Model. (Schreter Magdalena, Neuner Matthias, Hofstetter Günter; in: Applied Sciences. 2018; 8(6):1004.)
Versuche zum Schwinden und Kriechen
von Beton unter Berücksichtigung des Feuchtegehalts (Drexel, Martin; Theiner, Yvonne; Hofstetter, Günter; in: Bauingenieur - Ausgabe 03-2018, S. 95-102.)
Evolving yield surface
of the damage plasticity model for intact rock and rock mass during plastic hardening (Schreter, M. et al. "Application of a damage plasticity model for rock mass to the numerical simulation of tunneling". In: EURO:TUN 2017 / edited by: Hofstetter, G. et al. Innsbruck, 2017: 547.)
Multi-phase FE modelling
of pumping induced settlements (Gamnitzer, P. et al. "Fully coupled multi-phase modelling of pumping induced settlements, air- and water flow in multi-layered normally consolidated soils". In: Computers and Geotechnics 79 (2016) 10–21.)
Time-Dependent Material Properties
of Shotcrete: Experimental and Numerical Study (Neuner, M. et al.; in: Materials 10, no. 9 (2017): 1067.)
Pushover analysis
of a reinforced concrete frame; the colour scheme indicates the different degrees of damage (Azadi Kakavand, M. R. et al.; in: Bull Earthquake Eng (2018))
Modelling of coupled shrinkage and creep
in multiphase formulations of hardening concrete (P. Gamnitzer, A. Brugger, M. Drexel and G. Hofstetter. In: Materials 2019 12 1745)
Calibration of a multiphase model
based on a comprehensive data set for a normal strength concrete (P.Gamnitzer, M. Drexel, A. Brugger, G. Hofstetter. In: Materials 2019 12 791)