Variational modeling of hydromechanical fracture in saturated porous media: A micromechanics-based phase-field approach

J Ulloa, N Noii, R Alessi, F Aldakheel… - Computer Methods in …, 2022 - Elsevier
This paper presents a novel variational phase-field model for different fracture processes in
fully saturated porous media. As a key feature, the model employs a micromechanics-based …

Crack propagation in dynamics by embedded strong discontinuity approach: Enhanced solid versus discrete lattice model

M Nikolić, XN Do, A Ibrahimbegovic, Ž Nikolić - Computer Methods in …, 2018 - Elsevier
In this work we propose and compare the two models for crack propagation in dynamics.
Both models are based on embedded strong discontinuities for localized cohesive type …

Hydraulic fracture network propagation in a naturally fractured shale reservoir based on the “well factory” model

H Zhang, J Chen, Z Zhao, J Qiang - Computers and Geotechnics, 2023 - Elsevier
In different geological and engineering conditions, it is important to study the stress
interference of multiple fractures and interaction of natural fractures in “well factory” …

Discrete element model for the failure analysis of partially saturated porous media with propagating cracks represented with embedded strong discontinuities

M Nikolić - Computer methods in applied mechanics and …, 2022 - Elsevier
A novel, fully coupled hydro-mechanical model for the failure analysis of partially saturated
porous media is presented. Failure mechanisms pertain to propagating discontinuities, ie …

Lattice element method for simulations of failure in bio-cemented sands

ZH Rizvi, M Nikolić, F Wuttke - Granular matter, 2019 - Springer
Microbiologically induced calcite precipitation following the ureases is a bio-geo-chemical
soil improvement technique in which the microorganism facilitates to create an environment …

Heterogeneities and material-scales providing physically-based damping to replace Rayleigh damping for any structure size

A Ibrahimbegovic, RAM Nava - Coupled systems mechanics, 2021 - koreascience.kr
This study is aimed to develop a damping model to accurately predict vibration amplitude
reduction for any size of structure. It is developed in the framework of multi-scale analysis …

Three-dimensional X-FEM modeling of crack coalescence phenomena in the Smart CutTM technology

E Pali, A Gravouil, A Tanguy, D Landru… - Finite Elements in …, 2023 - Elsevier
Abstract A new 3D X-FEM approach is proposed to model crack coalescence phenomena in
the Smart Cut TM technology. An adaptive mesh is developed based on a 3D fractal mesh …

Fluid-structure interaction system predicting both internal pore pressure and outside hydrodynamic pressure

E Hadzalic, A Ibrahimbegovic, S Dolarevic - Coupled systems …, 2018 - dbpia.co.kr
In this paper, we present a numerical model for fluid-structure interaction between structure
built of porous media and acoustic fluid, which provides both pore pressure inside porous …

[PDF][PDF] Geometrically exact initially curved Kirchhoff's planar elasto-plastic beam

I Imamovic, A Ibrahimbegovic… - Coupled systems …, 2019 - researchgate.net
In this paper we present geometrically exact Kirchhoff's initially curved planar beam model.
The theoretical formulation of the proposed model is based upon Reissner's geometrically …

Minimum cost design for circular isolated footings with eccentric column taking into account that the surface in contact with the ground works partially in compression

I Luevanos-Soto, A Luevanos-Rojas… - Coupled systems …, 2024 - koreascience.kr
This work aims to show a model to estimate the minimum cost (Thickness and area of steel
in X and Y directions) for design a circular isolated footing with eccentric column that …