Publications

The results of the following (selected) publications were obtained using Marmot.

  • N. Alkmim, P. Gamnitzer, A. Dummer, M. Neuner, and G. Hofstetter. Algebraic Multigrid Based Preconditioning Approaches for Generalized Continuum Models and Indirect Displacement Control Techniques. International Journal for Numerical Methods in Engineering, 127(6):e70309, 2026. doi:10.1002/nme.70309.

  • N. Alkmim, P. Gamnitzer, M. Neuner, and G. Hofstetter. Block preconditioning strategies for generalized continuum models with micropolar and nonlocal damage formulations. International Journal for Numerical and Analytical Methods in Geomechanics, 48(7):1879–1906, 2024. doi:10.1002/nag.3707.

  • A. Dummer, K. Basche, P. Hofer, P. Gamnitzer, G. Hofstetter, T. Mader, and M. Neuner. A localizing gradient-enhanced damage-plasticity approach for quasi-brittle materials: formulation, consistent requirements, and application to concrete. Engineering Fracture Mechanics, pages 112270, 2026. doi:10.1016/j.engfracmech.2026.112270.

  • A. Dummer, M. Neuner, P. Gamnitzer, and G. Hofstetter. Robust and efficient implementation of finite strain generalized continuum models for material failure: Analytical, numerical, and automatic differentiation with hyper-dual numbers. Computer Methods in Applied Mechanics and Engineering, 426:116987, 2024. doi:10.1016/j.cma.2024.116987.

  • A. Dummer, M. Neuner, and G. Hofstetter. An extended gradient-enhanced damage-plasticity model for concrete considering nonlinear creep and failure due to creep. International Journal of Solids and Structures, 243:111541, 2022. doi:10.1016/j.ijsolstr.2022.111541.

  • P. Hofer, M. Neuner, P. Gamnitzer, and G. Hofstetter. Revisiting strain localization analysis for elastoplastic constitutive models in geomechanics. International Journal for Numerical Methods in Engineering, 125(24):e7579, 2024. doi:10.1002/nme.7579.

  • P. Hofer, M. Neuner, and G. Hofstetter. A note on the stability of pressure-sensitive non-associated plasticity. Computers and Geotechnics, 186:107363, 2025. doi:10.1016/j.compgeo.2025.107363.

  • P. Hofer, M. Neuner, and G. Hofstetter. Localized Deformation Analysis of a 3D Micropolar Modified Cam‐Clay Model. International Journal for Numerical and Analytical Methods in Geomechanics, 49(5):1544–1562, 2025. doi:10.1002/nag.3941.

  • T. Mader, A. Dummer, P. Gamnitzer, H. Gimperlein, and M. Neuner. An implicit RKPM formulation for large deformations in elastoplastic micropolar media: Framework, stabilization and assessment. Computer Methods in Applied Mechanics and Engineering, 450:118582, 2026. doi:10.1016/j.cma.2025.118582.

  • T. Mader, M. Schreter, and G. Hofstetter. A gradient enhanced transversely isotropic damage plasticity model for rock – formulation and comparison of different approaches. International Journal for Numerical and Analytical Methods in Geomechanics, 46(5):933–960, 2022. doi:10.1002/nag.3327.

  • T. Mader, M. Schreter-Fleischhacker, O. Shkundalova, M. Neuner, and G. Hofstetter. Constitutive modeling of orthotropic nonlinear mechanical behavior of hardened 3D printed concrete. Acta Mechanica, 234(11):5893–5918, 2023. doi:10.1007/s00707-023-03706-z.

  • M. Neuner, A. Dummer, S. Abrari Vajari, P. Gamnitzer, H. Gimperlein, C. Linder, and G. Hofstetter. A B-spline based gradient-enhanced micropolar implicit material point method for large localized inelastic deformations. Computer Methods in Applied Mechanics and Engineering, pages 117291, 2024. doi:10.1016/j.cma.2024.117291.

  • M. Neuner, A. Dummer, M. Schreter, G. Hofstetter, T. Cordes, and K. Bergmeister. Nonlinear Time-Dependent Analysis of the Load-Bearing Capacity of a Single Permanent Shotcrete Lining at the Brenner Base Tunnel. Structural Engineering International, 30(4):475–483, 2020. doi:10.1080/10168664.2020.1735979.

  • M. Neuner, P. Gamnitzer, and G. Hofstetter. A 3D gradient-enhanced micropolar damage-plasticity approach for modeling quasi-brittle failure of cohesive-frictional materials. Computers & Structures, 239:106332, 2020. doi:10.1016/j.compstruc.2020.106332.

  • M. Neuner, P. Hofer, and G. Hofstetter. On the prediction of complex shear dominated concrete failure by means of classical and higher order damage-plasticity continuum models. Engineering Structures, 251:113506, 2022. doi:10.1016/j.engstruct.2021.113506.

  • M. Neuner, M. Schreter, P. Gamnitzer, and G. Hofstetter. On discrepancies between time-dependent nonlinear 3D and 2D finite element simulations of deep tunnel advance: A numerical study on the Brenner Base Tunnel. Computers and Geotechnics, 117:103355, 2020. doi:10.1016/j.compgeo.2019.103355.

  • M. Schreter, M. Neuner, David Unteregger, and G. Hofstetter. On the importance of advanced constitutive models in finite element simulations of deep tunnel advance. Tunnelling and Underground Space Technology, 80:486–498, 2018. doi:10.1016/j.tust.2018.06.008.