61 citations · 123 across the 8 of their papers we have counts for
8 papers
Freezing of a deformable water-saturated porous medium. Part I: THM formulation, OpenGeoSys-6 implementation and benchmarking
Tymofiy Gerasimov, Christian B. Silbermann, Dmitri Naumov +3
In this contribution, Part I, we present a coupled thermo-hydro-mechanical formulation for modeling and analyzing water-to-ice phase change in a deformable fully-saturated porous m…
Neighbourhood watch in mechanics: non-local models and convolution
Thomas Nagel, Tymofiy Gerasimov, Dominik Kern
This paper is intended to serve as a low-hurdle introduction to non-locality for graduate students and researchers with an engineering mechanics or physics background who did not h…
Orthogonal decomposition of anisotropic constitutive models for the phase field approach to fracture
Vahid Ziaei-Rad, Mostafa Mollaali, Thomas Nagel +2
We propose a decomposition of constitutive relations into crack-driving and persistent portions, specifically designed for materials with anisotropic/orthotropic behavior in the ph…
Spatial and temporal scaled physical modeling of fluid convection using hypergravity
Jinlong Li, Wenjie Xu, Yunmin Chen +4
Scaled physical modeling is an important means to understand the behavior of fluids in nature. However, a common source of errors is conflicting similarity criteria. Here, we prese…
An Introduction to the Deviatoric Tensor Decomposition in Three Dimensions and its Multipole Representation
Chiara Hergl, Thomas Nagel, Gerik Scheuermann
The analysis and visualization of tensor fields is a very challenging task. Besides the cases of zeroth- and first-order tensors, most techniques focus on symmetric second-order te…
A finite-strain hyperviscoplastic model and undrained triaxial tests of peat
L. Zhang, B. C. O'Kelly, T. Nagel
This paper presents a finite-strain hyperviscoplastic constitutive model within a thermodynamically consistent framework for peat which was categorised as a material with both rate…
On Advantages of the Kelvin Mapping in Finite Element Implementations of Deformation Processes
Thomas Nagel, Uwe-Jens Görke, Kevin M. Moerman +1
Classical continuum mechanical theories operate on three-dimensional Eu-clidian space using scalar, vector, and tensor-valued quantities usually up to the order of four. For their…
Control of Tension-Compression Asymmetry in Ogden Hyperelasticity with Application to Soft Tissue Modelling
Kevin M. Moerman, Ciaran K. Simms, Thomas Nagel
This paper discusses tension-compression asymmetry properties of Ogden hyperelastic formulations. It is shown that if all negative or all positive Ogden coefficients are used, tens…