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Final report of DFG project 448085183: numerical modelling of partially cemented soils in the stagnation zone
Citation Link: https://doi.org/10.15480/882.17178
Publikationstyp
Research Report
Date Issued
2026-05-20
Sprache
English
TORE-DOI
Citation
Technische Universität Hamburg (2026)
This final report summarizes the results of DFG project 448085183, “Numerical Modelling of Partially Cemented Soils in the Stagnation Zone”. The project investigated the micromechanical behaviour of partially cemented sands by combining experimental testing, X-ray micro-computed tomography, image processing, and advanced numerical modelling. In the first project phase, the focus was on the linear-elastic response of cemented sand specimens. CT-based microstructures were converted into numerical models and analysed using the Finite Element Method (FEM) and the Finite Cell Method (FCM), including numerical homogenization to determine effective material properties. In the second project phase, the numerical frameworks were extended towards fracture and failure processes, including matrix cracking, grain-scale stress localization, and phase-field modelling. Additional experimental data were obtained by Digital Volume Correlation (DVC) to support the validation of the simulations. The project contributes to a better understanding of load transfer, stiffness development, and failure mechanisms in cemented granular materials and provides automated CT-based simulation workflows for future applications in geotechnical modelling.
Subjects
partially cemented soils
cemented sands
cemented granular materials
X-ray micro-computed tomography
numerical homogenization
phase-field modelling
DDC Class
624.17: Structural Analysis and Design
518: Numerical Analysis
Funding Organisations
More Funding Information
This final report presents results from the DFG-funded project “Numerical Modelling of Partially Cemented Soils in the Stagnation Zone”. The project was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under project number 448085183.
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Final Report_448085183_Numerical modelling of partially cemented soils in the stagnation zone.pdf
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