Article
Chemistry, Multidisciplinary
Hung Van Pham, Daniel Dias
Summary: This paper investigates the behavior of rigid inclusion-improved soil under different loading conditions through laboratory tests and numerical simulation. The study shows that the HYP model can better simulate the soil arching mechanism, providing good agreement with experimental data.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Marine
Jinzhao Li, Xuan Kong, Yilin Yang, Jiexuan Hu, Ruijia Jin
Summary: This paper presents a numerical study of the solitary wave-induced flow and scour around a square onshore structure. The results show that the simulated scour depth develops faster at the early stage compared to the experimental result. The scour starts at the front corner of the structure and develops rapidly, almost completed in the first half of the wave period.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Chemical
Anmol L. Purohit, John A. Misquith, Brian R. Pinkard, Stuart J. Moore, John C. Kramlich, Per G. Reinhall, Igor Novosselov
Summary: The study used experimental data and CFD methodology to model SCWO process in a bench-scale reactor, successfully predicting fluid temperature and ethanol decomposition. The model can inform practical SCWO reactor designs and optimize operating conditions for destroying toxic wastes.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Civil
Kunjie Rong, Zheng Lu, Jiawei Zhang, Mengyao Zhou, Weiyuan Huang
Summary: In this study, a gas-spring with adjustable nonlinear capacity is introduced into a conventional linear dynamic vibration absorber to form a nonlinear gas-spring dynamic vibration absorber for structural seismic response control. The mechanical properties of the symmetrical combined gas-spring system are studied through theoretical analysis and model tests. Shaking table tests are conducted to investigate the control effect and nonlinear damping mechanism of the gas-spring DVA, and a numerical model is established and validated by experimental results.
ENGINEERING STRUCTURES
(2023)
Article
Geochemistry & Geophysics
Kirill Gadylshin, Dmitry Vishnevsky, Kseniia Gadylshina, Vadim Lisitsa
Summary: We have developed a novel approach for seismic modeling by combining conventional finite differences with deep neural networks, resulting in a significant acceleration of seismic modeling. This method involves generating a training data set, generating the entire set of common-shot seismograms using an inaccurate numerical method, and applying a numerical dispersion mitigation neural network to suppress numerical dispersion.
Article
Geosciences, Multidisciplinary
Elisa Trasatti
Summary: Volcanic and Seismic source Modeling (VSM) is an open-source Python tool for modeling ground deformation. It supports various deformation sources and multiple datasets, with global optimization algorithm and probabilistic parameter estimation method. It can be executed in different environments and is applicable to multiple application domains.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Energy & Fuels
Karsten Fischer, Andrew Pearce, Xavier Garcia-Teijeiro, Andrew Mallinson, Ian Lloyd, Stephen Anderson, Francisco Gomez, Saad Kisra, Adrian Rodriguez-Herrera
Summary: Modeling the subsurface stress field using 3D finite element simulations is crucial for safe and sustainable underground operations. By capturing high resolution data and utilizing HPC infrastructure, large stress simulations can be solved efficiently to improve the safety and sustainability of subsurface operations.
GEOMECHANICS FOR ENERGY AND THE ENVIRONMENT
(2021)
Article
Engineering, Civil
C. P. Yi, E. Nordlund, P. Zhang, S. Warema, S. Shirzadegan
Summary: The study evaluated the dynamic response of ground support systems through simulated rockburst tests, identifying factors such as detonator position and charge configuration that influence the dynamic response of the support systems. It was also noted that 2D numerical modeling may overestimate the dynamic response of ground support systems.
Article
Construction & Building Technology
Lei Liu, Chengshun Xu, Xiuli Du, Kamran Iqbal
Summary: Developing a rational and efficient numerical model to analyze the longitudinal earthquake response of shield tunnel has become a hot topic in recent years. This study proposed a multi-scale numerical model based on the idea of scale coupling, which can accurately capture the dynamic response of the vulnerable part of shield tunnel. The results showed that the dynamic response of the shield tunnel near the soft-hard stratum interface rises dramatically due to the non-uniform deformation of the soil in that area. Strong earthquake waves may cause nonlinear increase in the opening deformation of a ring joint and the yielding of several joint bolts.
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Georgios Tzounas, Ioannis Dassios, Federico Milano
Summary: This paper presents a novel framework to analyze the accuracy and stability of numerical integration schemes in time domain simulation of power systems. It adopts a matrix pencil-based approach to evaluate the error between dynamic modes and approximated discrete-time system modes. The proposed framework provides meaningful insights on the comparison of different methods and can be applied to various numerical methods. The effectiveness of the framework is demonstrated using well-known explicit and implicit methods, as well as simulation results of different power systems.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2022)
Article
Geosciences, Multidisciplinary
Francesca Bozzoni, Giuseppe Misiano, Carlo G. Lai
Summary: This study proposes a multi-scale methodology to assess the seismic risk of small dams. It calculates risk-based prioritization indices and evaluates the seismic response of embankment dams using Monte Carlo simulations. An algorithm using Geographic Information System is developed for near real-time assessment of earthquake-related damage to small dams.
Article
Geology
Christian Haberland, Mohammad Mokhtari, Hassan Ali Babaei, Trond Ryberg, Mehdi Masoodi, Abdolreza Partabian, Joern Lauterjung
Summary: The Makran subduction zone has a history of producing large earthquakes and tsunamis, posing a high risk to coastal regions. This subduction zone is unique with extreme properties and has one of the largest sediment inputs and widest accretionary wedge on Earth. Detailed studies of the deep crustal structure provide valuable insights for hazard assessment and tsunami modeling.
Article
Engineering, Mechanical
Haitao Yang, Wei Xia, Kun Wang, Shuling Hu
Summary: This study investigates the aerodynamic performance of a small-scale rotor in tilting transition states through wind tunnel tests and numerical simulations. The findings show that the rotor's thrust coefficient is influenced by the Reynolds number, rotating speed, advance ratio, and tilt angle.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
Ivana Bosnic, Pedro J. M. Costa, Francisco Dourado, SeanPaul La Selle, Guy Gelfenbaum
Summary: The 1755 Lisbon earthquake triggered a historical tsunami, and efforts to understand this event through inverse and forward modeling have provided insights into tsunami characteristics. The study demonstrated significant variation in tsunami onshore velocities and highlighted the potential of numerical modeling to improve understanding of such historical events.
Article
Multidisciplinary Sciences
Mark G. Meekan, Conrad W. Speed, Robert D. McCauley, Rebecca Fisher, Matthew J. Birt, Leanne M. Currey-Randall, Jayson M. Semmens, Stephen J. Newman, Katherine Cure, Marcus Stowar, Brigit Vaughan, Miles J. G. Parsons
Summary: A large-scale experiment quantified the impacts of exposure to a commercial seismic source on a tropical demersal fish assemblage on the North West Shelf of Western Australia, showing no short-term or long-term effects on the composition, abundance, size structure, behavior, or movement of these fauna. Multiple lines of evidence suggest that seismic surveys have little impact on demersal fishes in this environment.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Construction & Building Technology
Benoit Hilloulin, Jean-Baptiste Legland, Elisabeth Lys, Odile Abraham, Ahmed Loukili, Frederic Grondin, Olivier Durand, Vincent Tournat
CONSTRUCTION AND BUILDING MATERIALS
(2016)
Article
Materials Science, Characterization & Testing
V. Metais, M. Chekroun, L. Le Marrec, A. Le Duff, G. Plantier, O. Abraham
NDT & E INTERNATIONAL
(2016)
Article
Geochemistry & Geophysics
Damien Pageot, Donatienne Leparoux, Mathieu Le Feuvre, Olivier Durand, Philippe Cote, Yann Capdeville
GEOPHYSICAL JOURNAL INTERNATIONAL
(2017)
Article
Acoustics
Jean-Baptiste Legland, Yuxiang Zhang, Odile Abraham, Olivier Durand, Vincent Tournat
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2017)
Article
Acoustics
Yuxiang Zhang, Vincent Tournat, Odile Abraham, Olivier Durand, Stephane Letourneur, Alain Le Duff, Bertrand Lascoup
Article
Acoustics
Guangzhi Chen, Damien Pageot, Jean-Baptiste Legland, Odile Abraham, Mathieu Chekroun, Vincent Tournat
Article
Chemistry, Analytical
Antoine Bassil, Xin Wang, Xavier Chapeleau, Ernst Niederleithinger, Odile Abraham, Dominique Leduc
Article
Acoustics
Guangzhi Chen, Damien Pageot, Odile Abraham, Yuxiang Zhang, Mathieu Chekroun, Vincent Tournat
Article
Acoustics
Romain Thery, Antoine Guillemot, Odile Abraham, Eric Larose
Article
Construction & Building Technology
Shilin Qu, Benoit Hilloulin, Jacqueline Saliba, Mehdi Sbartai, Odile Abraham, Vincent Tournat
Summary: Nonlinear Coda Wave Interferometry (NCWI) is a robust tool for assessing nonlinearity caused by cracks in highly heterogeneous materials such as concrete. This study presents a novel qualitative method called Imaging using NCWI (INCWI), which combines NCWI and a spatial averaging method. The method is used to locate cracks in a concrete beam subjected to three-point bending.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Acoustics
Shilin Qu, Benoit Hilloulin, Olivier Chupin, Jean-Michel Piau, Odile Abraham, Vincent Tournat
Summary: Nonlinear Coda Wave Interferometry (NCWI), an ultrasonic method, has been developed in Non-Destructive Testing and Evaluation (NDT&E) to detect cracks in heterogeneous materials. This method uses pump waves to interact with the crack breathing and measures the resulting signal at receiver probes. Simulation models are used to determine the effect of pump waves on cracks and calculate the pump stress amplitude. Numerical results show a linear relationship between relative crack length variation and equivalent static load. The calculated NCWI outputs agree with experimental results on a slightly damaged 2D glass plate.
Proceedings Paper
Physics, Applied
Guangzhi Chen, Damien Pageot, Jean-Baptiste Legland, Odile Abraham, Mathieu Chekroun, Vincent Tournat
44TH ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOL 37
(2018)
Proceedings Paper
Physics, Applied
J. -B. Legland, O. Abraham, O. Durand, J. -M. Henault
44TH ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOL 37
(2018)
Proceedings Paper
Physics, Applied
Odile Abraham, Jean-Baptiste Legland, Olivier Durand, Jean-Marie Henault, Vincent Garnier
44TH ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOL 37
(2018)