State Index for Interpreting the State-Dependent Behavior of Granular Soil: A Review

C Yan, Y Shen, W Zhao, Y Sun - Archives of Computational Methods in …, 2023 - Springer
The strength and deformation behaviors of granular soil depend on the material state, ie,
density and pressure. To interpret such state-dependent behavior, different state indices …

Novel approach to apply existing constitutive soil models to the modelling of interfaces

P Staubach, J Machaček… - International Journal for …, 2022 - Wiley Online Library
A novel scheme to apply constitutive (continuum) soil models to the mechanical modelling of
soil‐structure interfaces is presented. Opposite to existing approaches, all normal stress …

Long-term response of piles to cyclic lateral loading following vibratory and impact driving in water-saturated sand

P Staubach, J Machaček, B Bienen… - Journal of Geotechnical …, 2022 - ascelibrary.org
The influence of the pile installation by vibratory or impact driving on the response to
subsequent cyclic lateral loading, as faced in the offshore environment, is investigated …

Deep vibratory compaction simulated using a high-cycle accumulation model

P Staubach, I Kimmig, J Machaček, T Wichtmann… - Soil Dynamics and …, 2023 - Elsevier
Deep vibratory compaction (DVC) is an effective ground improvement method for granular
soils in a loose initial state. An efficient numerical approach to simulate the whole process of …

[PDF][PDF] Contributions to the numerical modelling of saturated and unsaturated soils

J Machacek, P Staubach - Computers and Geotechnics, 2021 - numgeo.de
We do not warrant the suitability, accuracy, or operational characteristics of our Software.
The software is provided on an “as-is” basis. The user of the software agrees that the …

[PDF][PDF] Contributions to the numerical modelling of pile installation processes and high-cyclic loading of soils

P Staubach - Publications of the Chair of Soil Mechanics …, 2022 - scholar.archive.org
This work presents contributions to the numerical modelling of the installation process and
subsequent high-cyclic loading of piles, such as relevant for pile foundations for offshore …

Entwicklungen in der numerischen Modellierung geotechnischer Randwertprobleme: Automatische Parameterkalibrierung, erdbebeninduzierte Verflüssigung und …

J Machaček, P Staubach - Bautechnik, 2023 - Wiley Online Library
In diesem Aufsatz werden neue Entwicklungen im Rahmen des Finite‐Elemente‐
Programms numgeo vorgestellt und deren Anwendbarkeit und Robustheit durch Simulation …

Long-term settlement of dynamically loaded shallow foundations

P Staubach, D Wegener, J Machaček… - International Journal of …, 2024 - ascelibrary.org
Analytical approaches to determine the long-term settlement of shallow foundations
subjected to dynamic cyclic loading with a large number of cycles (millions) are presented …

Separating fluid and solid contact constraints for hydro-mechanically coupled finite elements discretising fluid displacement

P Staubach, J Machaček - Computer Methods in Applied Mechanics and …, 2023 - Elsevier
In the simulation of multi-phase porous media in contact with a structure, the contact
constraints to be enforced depend on the spatially discretised variables and additional …

[HTML][HTML] Numerical modelling of expansive geomaterials: Finite element formulation and constitutive models

J Machaček, A Nitsch, T Wichtmann… - Computers and …, 2024 - Elsevier
The successful simulation of the behaviour of expansive soils using FEM strongly depends
on the acting hydromechanical processes and their proper consideration. During swelling …