Mohaddeseh Mousavi Nezhad

Mohaddeseh Mousavi Nezhad
The University of Warwick · School of Engineering

PhD

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64
Publications
18,403
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682
Citations

Publications

Publications (64)
Conference Paper
Full-text available
Landslides are a common geological hazard, which cause serious damage to buildings or infrastructure facilities. Accurate prediction of influence zone of landslides, including influence (retrogressive) distance and runout distance, is vital for disaster mitigation. However, reliable post-failure analysis of landslides is particularly challenging du...
Article
This study relies on pore-scale direct computations of velocity fields within highly porous open-cell metal foams (OCF) characterized by differing geometrical attributes. The Navier-Stokes equations are solved across a suite of synthetically generated pore structures to assess relationships between attributes/patterns of the pore-scale flow field a...
Article
Full-text available
Natural soils often exhibit an anisotropic fabric pattern as a result of soil deposition, weathering, or filling. This paper aims to investigate the effect of soil interdependent anisotropy and fabric orientation on runout motions of landslides and evaluate the most critical fabric orientation for the post-failure behavior. The shear strength prope...
Article
Full-text available
In landslide analysis, reliable prediction of landslide's influence zone is significantly difficult due to the inherent heterogeneity of soils and their spatially varying geological properties. In this paper, a probabilistic framework is proposed to evaluate the landslide hazard zoning through the prediction of their influence zone considering the...
Article
Several studies have investigated the wax precipitation process, focusing on the equations of state, correlations for fusion properties, and calibration of parameters. In most of them, the impact of the fluid characterization on the wax properties has not been addressed widely. In this study, we show that a single characterization scheme is not app...
Article
Full-text available
This paper proposes a stochastic method for analyzing the runout distance of sand collapse considering the spatial variability of shear strength, in which random field theory and generalized interpolation material point method are integrated into a Monte-Carlo simulation basis. The random field is generated by Cholesky matrix decomposition method a...
Article
Full-text available
Historically coal mining wastes have been viewed as heterogenous and hazard-prone geomaterials. Given that failures of colliery tips and tailing dams are reported on a regular basis, reclamation of coal mining wastes from storage facilities is increasingly being considered. There is a resistance to the use of coal mining waste in construction indus...
Article
Full-text available
Modeling the relationship between volumetric flux (m³/s) and gradient of hydraulic head (m) is extremely challenging in case of non-linear filtration through porous packing. Due to the uncertainties associated with the definition and quantification of characteristic length and velocity, experimental, theoretical and numerical modelling approaches a...
Article
We develop and test a modeling approach to quantify turbulence-driven solute transport and mixing in porous media. Our approach addresses two key elements: (a) the spatial variability of the effective diffusion coefficient which is typically documented in the presence of a sediment–fluid interface and (b) the need to provide a model that can yield...
Article
Full-text available
Predicting propagation of fluid-driven fractures in heterogeneous porous materials is critical for design of engineering operations to sustainably use underground energy resources. In this paper, a computational model is presented using the phase-field theory and in the context of finite strains kinematics. The framework is built upon the use of va...
Article
Full-text available
Microplastics (MPs) are emerging persistent contaminants in the terrestrial subsurface, and evidence has emerged for significant effects of MPs on soils’ biological and ecosystem functions. Main MPs sources include land spreading of sewage sludge and biowaste composts, plastic mulching film used in horticultural fields, wastewater irrigation, and l...
Article
Full-text available
Our work is focused on the analysis of solute mixing under the influence of turbulent flow propagating in a porous system across the interface with a free fluid. Such a scenario is representative of solute transport and chemical mixing in the hyporheic zone. The study is motivated by recent experimental results (Chandler et al. Water Res Res 52(5):...
Article
Full-text available
This paper studied the rock dynamic fracture propagation under impact loads elaborately with a determination method proposed to calculate crack propagation dynamic stress intensity factor (DSIF). By utilizing the split-Hopkinson pressure bar, the impact experiments with an improved single cleavage semi-circle (ISCSC) specimen were conducted to illu...
Article
Full-text available
In this paper the one-dimensional (1D) time-dependent behaviour of natural and reconstituted London Clay samples under saturated and unsaturated conditions is studied. For this purpose, a set of 1D consolidation tests including multi-staged loading (MSL) oedometer tests and single-staged loading (SSL) long-term oedometer creep tests were carried ou...
Article
Full-text available
Research into the thermo-hydro-mechanical (THM) behavior of unsaturated soils and the effect of strain rate on their mechanical responses requires employment of advanced laboratory testing systems and procedures as well as protocols of correcting the measured data in order to account for errors associated with complex test conditions and apparatus...
Article
Full-text available
Saltwater intrusion (SWI) increases salinity of aquifers and depletion of groundwater resources in coastal aquifers. Different methods have been used to control SWI in the coastal aquifers in order to protect groundwater. In this paper, applicability of Physical Subsurface Barriers (PSB) methods to control SWI in the Biscayne aquifer in Florida, US...
Article
Full-text available
This paper presents the experimental program conducted for evaluation of the rate-dependent and stress-relaxation behavior of unsaturated reconstituted London clay. A series of drained constant rate of strain (CRS) compression-relaxation tests with single-staged (SS-CRS) and multistaged (MS-CRS) loading modes was performed in an innovative CRS oedo...
Article
Full-text available
The objective of this paper is to investigate the complete process of dynamic crack propagation in brittle materials under different loading rates. By using Improved Single Cleavage Semi-Circle (ISCSC) specimens and Split Hopkinson Pressure Bar equipment, experiments were conducted, with the fracture phenomenon and crack propagation of tight sandst...
Article
Full-text available
Saltwater intrusion (SWI) increases salinity of aquifers and depletion of groundwater resources in coastal aquifers. Different methods have been used to control SWI in the coastal aquifers in order to protect groundwater. In this paper, applicability of physical subsurface barriers (PSB) methods to control SWI in the Biscayne aquifer in Florida, US...
Article
A pore-network model (PNM) was developed to simulate non-Darcy flow through porous media. This paper investigates the impact of micro-scale heterogeneity of porous media on the inertial flow using pore-network modelling based on micro X-ray Computed Tomography (XCT) data. Laboratory experiments were carried out on a packed glass spheres sample at f...
Poster
Most of the previous studies that modelled solute transport through porous media applied Darcy’s law and assumed a linear relationship between the pressure gradient and fluid velocity. However, in some circumstances, the relationship between the pressure gradient and fluid velocity becomes nonlinear as a result of flow inertial effects. These inert...
Article
Full-text available
Rock dynamic fracture is a complex problem and has received considerable attention during the last few decades. In this paper, tensile crack softening failure criterion is used to study impact‐induced crack initiation and propagation in rocks. In order to examine applicability of the criterion, under realistic loading and boundary conditions, three...
Article
Full-text available
In this paper, we develop a surrogate modelling approach for capturing the output field (e.g. the pressure head) from groundwater flow models involving a stochastic input field (e.g. the hydraulic conductivity). We use a Karhunen–Loève expansion for a log-normally distributed input field and apply manifold learning (local tangent space alignment) t...
Article
Full-text available
We investigate local aspects and heterogeneities of porous medium morphology and relate them to the relevant mechanisms of momentum transfer. In the inertial flow range, there are very few experimental data that allow to recognize the effects of porous structure on the flow and transport through porous media. An experimental analysis was performed...
Article
A computational framework for modeling hydraulic fracture on the basis of combining continuum porous media and damage theories is presented. By considering the continuum as two separate domains of damaged and intact porous domains, model components are isolated and considered separately. This simplifies the whole modeling approach. The mathematical...
Article
Full-text available
Efficient usage of underground resources is becoming increasingly important, as it is linked with the principle of sustainable development. Underground geological formations contain significant amounts of oil, gas and heat and can also be used for storage of carbon dioxide, natural gas or radioactive waste. Development of technologies to utilize th...
Article
The theoretical study of laminar boundary layer flows of a non-Newtonian fluid past a stretching sheet in an embedded porous medium in the presence of suction/injection is of significant importance in the crystal growing, geothermal, metallurgical, polymer extrusion and several other technological processes. Casson fluid model is one such fluid mod...
Article
Damage process in engineering systems is strongly affected by spatial heterogeneity and local discontinuities in the materials, which are significantly influencing the reliability and integrity of the systems. In this paper, we present a new stochastic approach as a tool for performing uncertainty quantification in simulating damage evolution in he...
Conference Paper
This paper presents a time dependent constitutive model, namely NSFS-MCC, developed based on nonstationary flow surface theory and in the framework of critical state soil mechanics. The model is capable of capturing the effect of time and loading rate on the long term behaviour of soft soils. Model description is presented before some qualitative a...
Article
Full-text available
Reliable prediction of fracture process in shale-gas rocks remains one of the most significant challenges for establishing sustained economic oil and gas production. This paper presents a modeling framework for simulation of crack propagation in heterogeneous shale rocks. The framework is on the basis of a variational approach, consistent with Grif...
Article
Full-text available
High-capacity tensiometers (HCTs) are sensors made to measure negative pore water pressure (suction) directly. In this paper, a new approach is proposed to expand the range and duration of suction measurements for a newly designed HCT. A new technique is employed to reduce significantly the roughness of the diaphragm’s surface on the water reservoi...
Article
Full-text available
Fractures tend to propagate along the least resistance paths, and homogeneous-based models may not be able to reliably predict the true crack paths, as they are not capable of capturing nonlinearities and local damage induced by local inhomogeneity. This paper presents a stochastic numerical modelling framework for simulating fracturing in natural...
Article
Full-text available
In this paper, an anisotropic creep constitutive model, namely Creep-SCLAY1S is employed to study the installation effects of prefabricated vertical drains (PVDs) on the behavior of a full scale test embankment, namely Haarajoki embankment in Finland. The embankment was constructed on a natural soft soil with PVD installed to improve the drainage u...
Poster
Full-text available
Darcy’s law is a linear relationship between the discharge through a porous medium and the pressure drop over a given distance. Non-Darcy flow may be observed in cases such as flow through the hyporheic zone, flow near groundwater wells, hydraulic fractures, flow through porous media with relatively high porosity, e.g. coarse sand or gravel, and fl...
Article
Full-text available
This paper reports the results of a numerical investigation of the behavior of a natural soft clay deposit under the installation of a case study pile. The case study problem included installation of an instrumented close-ended displacement pile in a soft marine clay deposit, known as Bothkennar clay, in Scotland. The site has been used for a numbe...
Article
Full-text available
Multiscale approach based explicit analytic predictions are obtained for the transversely isotropic properties of shale rock considering the multi-inclusion and interfacial transition zone (ITZ) effects. Representative volume elements (RVEs) are utilized to describe the material's hierarchical microstructures from the nanoscale to the macroscale. A...
Article
Multiscale approach based explicit analytic predictions are obtained for the transversely isotropic properties of shale rock considering the multi-inclusion and interfacial transition zone (ITZ) effects. Representative volume elements (RVEs) are utilized to describe the material's hierarchical microstructures from the nanoscale to the macroscale. A...
Article
Full-text available
A simplified multiscale damage model is proposed for the transversely isotropic shale rocks under tensile loading. In this framework, the multiscale representations for the shale rocks are presented by introducing the microcrack-weakened equivalent solid with hierarchical microstructures, whose transversely isotropic properties are obtained by perf...
Article
Full-text available
Clayey soils tend to undergo continuous compression with time, even after excess pore pressures have substantially dissipated. The effect of time on deformation and mechanical response of these soft soils has been the subject of numerous studies. Based on these studies, the observed time-dependent behaviour of clays is mainly related to the evoluti...
Conference Paper
Full-text available
Fractures tend to propagate along the least resistance paths, and homogeneous-based models may not be able to reliably predict true crack paths. This paper presents a stochastic numerical modelling approach for simulating fracturing in natural heterogeneous materials. Through this approach, at a specified point of localized damage, the probability...
Conference Paper
Experimental studies showthat clays often have a significant degree of anisotropy at their natural state. They also show characteristic undisturbed shear strength in excess of their remolded strength that is due to the inter-particle bonding in their structure. Natural clays also exhibit highly nonlinear cyclic behaviour that further complicates ma...
Article
Full-text available
a b s t r a c t This paper investigates the computational performance of S-CLAY1S constitutive model by varying its yield function equation. S-CLAY1S is an advanced anisotropic elasto-plastic model that has been developed based on the extension of conventional critical state theory. In addition to modified Cam-Clay's hardening law, S-CLAY1S also ac...
Conference Paper
Soft clays are normally consolidated or lightly overconsolidated soils where even small increases of stresses are likely to cause non-linearity and plasticity in their response. In addition, soft clays have a significant degree of anisotropy in their natural state that adds to the complexity of their behaviour. In this paper a new model is proposed...
Article
This paper presents a computational framework for quasi-static brittle fracture in three dimensional solids. The paper set outs the theoretical basis for determining the initiation and direction of propagating cracks based on the concept of configurational mechanics, consistent with Griffith's theory. Resolution of the propagating crack by the fini...
Article
Full-text available
The movement of chemicals through soil to groundwater is a major cause of degradation of water resources. In many cases, serious human and stock health implications are associated with this form of pollution. The study of the effects of different factors involved in transport phenomena can provide valuable information to find the best remediation a...
Article
Full-text available
Water flow is greatly influenced by the characteristics of the domain through which the process occurs. It is generally accepted that earth materials have extreme variations from point to point in space. Consequently, this heterogeneity results in high variation in hydraulic properties of soil. In order to develop an accurate predictive model for t...
Article
One of the important issues in simulation of contaminant transport in the subsurface is how to quantify the hydraulic properties of soil that are randomly variable in space because of soil heterogeneity. Stochastic approaches have the potential to represent spatially variable parameters, making them an appropriate tool to incorporate the effects of...
Article
Full-text available
This paper presents development and application of a numerical model for simulation of contaminant transport considering macro- and micro-heterogeneity in soil. Stochastic finite element approach is used to incorporate the effects of the spatial variability of soil hydraulic properties on contaminant fate. The soil micro-heterogeneity effects are m...
Conference Paper
Full-text available
Hydrological processes are greatly influenced by the characteristics of the domain through which the process occurs. It is generally accepted that earth materials have extreme variations from point to point in space. Consequently this heterogeneity results in high variation in hydraulic properties of soil. In order to develop a predictive model for...
Conference Paper
Full-text available
Honeycomb modular plastic units are commonly used as a cost effective method in the construction of attenu-ation tanks aimed for stormwater infiltration and control. However there is very little understanding of the ac-tual mechanical performance of these blocks in use. In this paper the results from a program of experimental study on the behavior...
Conference Paper
Full-text available
Flow and solute transport in soils are greatly influenced by the characteristics of the domain through which the processes occur. It is generally accepted that geomaterials have extreme variations from point to point in space. Consequently this heterogeneity results in high variation in hydraulic properties of soil. In order to develop an accurate...
Article
Full-text available
Determination of liquefaction induced lateral displacements during earthquake is a complex geotechnical engineering problem due to the complex and heterogeneous nature of the soils and the participation of a large number of factors involved. In this paper, a new approach is presented, based on genetic programming (GP), for determination of liquefac...
Article
Hydrological processes are greatly influenced by the characteristics of the domain through which the process occurs. It is generally accepted that earth materials have extreme variations from point to point in space. Consequently this heterogeneity results in high variation in hydraulic properties of soil. In order to develop a reliable predictive...

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