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Related publications (14)
Bootstrapping smooth conformal defects in Chern-Simons-matter theories
The expectation value of a smooth conformal line defect in a CFT is a conformal invariant functional of its path in space-time. For example, in large N holographic theories, these fundamental observables are dual to the open-string partition function in Ad ...
New York2024ENHANCED GEOTHERMAL SYSTEMS (EGS) - NUMERICAL PREDICTION OF THE MODE AND LOCATION OF FRACTURE INITIATION
Geo-energy is a comprehensive term used to describe any form of energy that comes from the Earth. This includes hydrocarbons such as gas, oil, and coal, but also geothermal energy (shallow and deep). The focus of this thesis is on Enhanced Geothermal Syste ...
2020Experimental Evaluation and Numerical Modeling of Wide-Flange Steel Columns Subjected to Constant and Variable Axial Load Coupled with Lateral Drift Demands
Dimitrios Lignos, Ahmed Mohamed Ahmed Elkady
This paper presents results from an experimental evaluation on the pre- and post-buckling behavior of 12 steel wide-flange cantilever columns under axial load and lateral drift demands. The influence of several loading and geometric parameters, including t ...
2020Cold stiffening of orthotropic steel decks by a composite UHPFRC layer
Eugen Brühwiler, Lan Duan, Shichao Wang
Cold stiffening of the plate of Orthotropic Steel Deck (OSD) of bridges can be achieved by adding a layer of Ultra-High Performance Fiber Reinforced Cementitious Composite material (UHPFRC) on top of the deck plate by composite design, thus expecting to re ...
ELSEVIER SCI LTD2020Multiaxial ultra low cycle fatigue in welded high strength steel structural components
Alain Nussbaumer, Albano António De Abreu E Presa De Castro E Sousa
Extreme events often subject regions of structural steel components to large inelastic strains. In conditions such as earthquakes, exceptional winds gusts or tides the loading scenario is cyclical, variable amplitude and frequently multiaxial in nature, an ...
2019Application of Time Series Methods on Long-Term Structural Monitoring Data for Fatigue Analysis
Eugen Brühwiler, Bartlomiej Wojciech Sawicki, Morteza Ahmadivala
Structural health monitoring (SHM) can be employed to reduce uncertainties in different aspects of structural analysis such as: load modeling, crack development, corrosion rates, etc. Fatigue is one of the main degradation processes of structures that caus ...
2019Load transfer mechanisms in CFRP ground anchors with multi-strap ends
Thomas Keller, Anastasios Vassilopoulos, Haifeng Fan
An investigation of the load-transfer mechanism in carbon fiber-reinforced polymer (CFRP) ground anchors with multi-strap ends was conducted based on experimental and numerical studies of one- and two-strap anchors. Differences in the strap geometry, i.e. ...
Elsevier2018Functional composites with damage control and repair
Fibre Reinforced Polymer (FRP) composite structures are subjected during service to low energy impacts or unexpected loads, leading to damage. Microcracks are generally first formed in the matrix and can reach up to several hundred microns in thickness. In ...
EPFL2018Laminated connections for structural glass components: a full-scale experimental study
Alain Nussbaumer, Pieter Christian Louter, Manuel Santarsiero
The use of glass material for structural components has drastically increased in the last decade. Among others, a laminated connection is a type of adhesive joint that makes use of foil interlayer adhesive to transfer forces between glass and metal parts. ...
Springer International Publishing Ag2017A numerical model to reproduce an experimental design to detect strain in cement
An experimental set-up consisting of a loading device inserted in a μCT scanner was numerically simulated to predict the strain at the bone-implant interface of the scapula after applying various loading conditions. The aim of the project was to determine ...
2016