School of Civil and Environmental Engineering Publications and Presentations
Scholarly work from the School of Civil and Environmental Engineering (CEE)
All materials in SMARTech are protected under U.S. Copyright Law and all rights are reserved. Such materials may be used, quoted or reproduced for educational purposes only with prior permission, provided proper attribution is given. Any redistribution, reproduction or use of the materials, in whole or in part, is prohibited without prior permission of the author.
Recent Submissions
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Fabric evolution and crack propagation in salt during consolidation and cyclic compression tests
(2020)It is of great interest to describe and quantify the evolution of microstructure for a better understanding of rock deformation processes. In this study, 2D microstructure images of salt rock are analyzed at several stages ... -
Modeling root system growth around obstacles
(Georgia Institute of Technology, 2020)State-of-the-Art models of Root System Architecture (RSA) do not allow simulating root growth around rigid obstacles. Yet, the presence of obstacles can be highly disruptive to the root system. We grew wheat seedlings in ... -
Micro-mechanical Modeling for Rate-Dependent Behavior of Salt Rock under Cyclic Loading
(Georgia Institute of Technology, 2020)The dependence of rock behavior on the deformation rate is still not well understood. In salt rock, the fundamental mechanisms that drive the accumulation of irreversible deformation, the reduction of stiffness and the ... -
Integrated Decision Support Tool (iDST) Life Cycle Costing Module for Distributed Stormwater Control Measures (SCMs)
(Georgia Institute of Technology, 2020-05-18)The life cycle costing (LCC) module for distributed stormwater control measures (SCMs) for the integrated decision support tool (i-DST) supporting analysis of green, grey, and hybrid stormwater infrastructure deployment ... -
Horizontal directional drilling (HDD) alignment optimization using ant colony optimization
(2020)Horizontal Directional Drilling (HDD) is a trenchless method that consists in drilling an inclined and curved bore from an entry point to an exit point. In practice, HDD is designed iteratively by trial and error, to ... -
Tensile strength of calcite/HMWM and silica/HMWM interfaces: A Molecular Dynamics analysis
(Georgia Institute of Technology, 2020-03)The mechanical behavior of interfaces between high molecular weight methacrylate (HMWM) and concrete minerals (calcite and silica) is investigated from a Molecular Dynamics (MD) perspective. MD simulations of pullout tests ... -
Transportation networks inspired by leaf venation algorithms
(2020)Biological systems have adapted to environmental constraints and limited resource availability. In the present study, we evaluate the algorithm underlying leaf venation (LV) deployment using graph theory. We compare the ... -
Conventional hydroelectricity and the future of energy: Linking national T inventory of dams and energy information administration data to facilitate analysis of hydroelectricity
(Elsevier, 2020-01)Within the energy community, conventional dam and reservoir-based hydroelectricity is often viewed as a low- cost, immediately available zero-carbon resource that could facilitate more intermittent renewable electricity ... -
DEM analysis on the role of aggregates on concrete strength
(Georgia Institute of Technology, 2019-10-02)This study aims to understand the micro-mechanisms that drive fracture propagation in concrete and to assess the roles of the strength of aggregates and of the aggregate/mortar interfacial transition zone (ITZ) on concrete ... -
Structure and mechanical behavior of dentin-inspired nanoporous copper
(2019)Dentin possesses a hierarchical porous structure with varying cross-scale morphology and characteristic lengths ranging from nanometers to micrometers. NP Copper is fabricated with nano-sized and micron-sized features that ... -
Substrate composition directs slime molds behavior
(2019)Physarum polycephalum, also called slime mold, is a giant single-celled organism that can grow to cover several square meters, forming search fronts that are connected to a system of intersecting veins. An original ... -
Mineral weathering and bedrock weakening: Modeling microscale bedrock damage under biotite weathering
(2019)Bedrock weakening is of wide interest because it influences landscape evolution, chemical weathering, and subsurface hydrology. A longstanding hypothesis states that bedrock weakening is driven by chemical weathering of ... -
XFEM to couple nonlocal micromechanics damage with discrete mode I cohesive fracture
(2019-09)A computational tool is developed to simulate the propagation of a discrete fracture within a continuum damage process zone. Microcrack initiation and propagation prior to coalescence are represented by a nonlocal anisotropic ... -
An alternative to periodic homogenization for dentin elastic stiffness
(2019)Dentin, the main tissue of the tooth, is made of tubules surrounded by peri-tubular dentin (PTD), embedded in a matrix of inter-tubular dentin (ITD). The PTD and the ITD have different relative fractions of collagen and ... -
Fluid driven transition from damage to fracture in anisotropic porous media - a multiscale XFEM approach
(2019)In this paper, a numerical method is proposed to simulate multiscale fracture propagation driven by fluid injection in transversely isotropic porous media. Intrinsic anisotropy is accounted for at the continuum scale, by ... -
Three Considerations for Modeling Natural Gas System Methane Emissions in Life Cycle Assessment
(Elsevier, 2019-03-13)Natural gas is a fossil fuel accounting for about 30% of US primary energy consumption. Climate change is one of the primary environmental issues associated with natural gas use: natural gas combustion releases carbon ... -
DEM modelling of sequential fragmentation of zeolite granules under oedometric compression based on XCT observations
(Elsevier, 2019)The objective of our research is to define a new Discrete Element Method (DEM) that can describe the processes involved in particle breakage and the resulting macroscopic behaviour of the particulate assembly, by directly ... -
Simulation of salt cavity healing based on a micro-macro model of pressure-solution
(Geological Society, United Kingdom, 2019-01)CO₂ storage in salt rock is simulated with the Finite Element Method (FEM), assuming constant gas pressure. The initial state is determined by simulating cavity excavation with a Continuum Damage Mechanics (CDM) model. A ... -
An Isotropic Self-Consistent Homogenization Scheme For Chemo-Mechanical Healing Driven By Pressure Solution In Halite
(Georgia Institute of TechnologyElsevier, 2018)Mechanical healing is the process by which a damaged material recovers mechanical stiffness and strength. Pressure solution is a very effective healing mechanism, common in crystalline media. Chemical reactions initiate ...
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