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Littérature scientifique sur le sujet « Displacement damages »

Auteur : Grafiati

Publié le 16 novembre 2024

Mis à jour le 31 juillet 2025

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Articles de revues sur le sujet "Displacement damages"

Zhu, Jia Wei, Dan Ting Zhou, and Qiu Wei Yang. "Damage Localization for a Continuous Beam by the Displacement Variation." Applied Mechanics and Materials 744-746 (March 2015): 366–69. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.366.

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Using the static displacement data, this paper presented a damage localization method for a continuous beam. This method is based on the estimation of changes in the static displacements of the structure. The most significant advantage of the method is that it does not require development of an analytical model of the structure being tested. All predictions are made directly from the measurments taken on the structure. The efficiency of the proposed method is demonstrated using simulated data of a three-span continuous beam. The results showed that the region in which the displacement variatio

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Hu, Chen, and Ke Ding. "Thin Plate Damage Analysis Based on Transient Displacement Response." Academic Journal of Science and Technology 15, no. 1 (2025): 249–58. https://doi.org/10.54097/v2k3e487.

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This study systematically simulates and analyzes the dynamic response of a thin plate structure under different damage conditions based on a transient model, aiming to evaluate the performance of Wave Atom transform, wavelet packet transform, and Curvelet transform in damage detection. By applying random initial displacement excitations to the thin plate structure and using optimized load step settings, the impact of different damage severities, damage ranges, boundary damage, and damage spacing on the dynamic response of the structure is analyzed. The results show that both Wave Atom and Curv

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Tiongson, Samuel Francisco, and Ryan Ramirez. "Mapping of ground surface deformations and its associated damage using SAR interferometry: a case study of the 2020 Masbate earthquake." E3S Web of Conferences 347 (2022): 03014. http://dx.doi.org/10.1051/e3sconf/202234703014.

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The 2020 Masbate earthquake in the Philippines, with a moment magnitude 6.6, occurred on August 18, 2020. The earthquake dealt considerable damage to the surrounding areas. This study uses Sentinel-1 Interferometric Synthetic Aperture Radar (InSAR) to investigate earthquake-induced damages. Conventional repeat-pass InSAR is used to quantify the ground surface displacement along the radar line-of-sight (LOS). The InSAR technique shows ground surface displacements greater than 15 cm. This study also implements a two-step coherence difference analysis coupled with a statistical temporal coherence

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Xiao, Feng, Weiwei Zhu, Xiangwei Meng, and Gang S. Chen. "Parameter Identification of Frame Structures by considering Shear Deformation." International Journal of Distributed Sensor Networks 2023 (August 16, 2023): 1–12. http://dx.doi.org/10.1155/2023/6631716.

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This paper presents a method to identify the damages in frame structures with slender beams. This method adjusts the parameters of the structure to match the analytical and the measured displacements. The effect of transverse shear deformation on the nodal analytical displacement is analyzed, and the parameter identification of frame structures with slender beams is performed. The results demonstrate that parameter-identification accuracy can be considerably improved by considering the transverse shear deformation in the frame structure with slender beams. The proposed method can accurately id

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Li, Cui Hong, Qiu Wei Yang, and Xue Shen. "Damage Detection for Cantilever Beam Structures Using Two-Stage Method." Applied Mechanics and Materials 351-352 (August 2013): 1084–87. http://dx.doi.org/10.4028/www.scientific.net/amm.351-352.1084.

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This paper presents a two-stage method for damage identification in cantilever beam structures using the incomplete measured static and dynamic paramenters. The first stage locates damages preliminary by using the static displacement changes, which is obtained by the static test of structure. It has been shown that the point from which the static displacement difference starts increasing linearly is the location of damage. After the suspected damaged elements are determined in the first stage, the first order sensitivity of the structural natural frequency is used to identify damages more prec

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Bhargav Sai, Cherukuri, and D. Mallikarjuna Reddy. "Dynamic Analysis of Faulty Rotors through Signal Processing." Applied Mechanics and Materials 852 (September 2016): 602–6. http://dx.doi.org/10.4028/www.scientific.net/amm.852.602.

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In this study, an effective method based on wavelet transform, for identification of damage on rotating shafts is proposed. The nodal displacement data of damaged rotor is processed to obtain wavelet coefficients to detect, localise and quantify damage severity. Because the wavelet coefficients are calculated with various scaled indices, local disturbances in the mode shape data can be found out in the finer scales that are positioned at local disturbances. In the present work the displacement data are extracted from the MATLAB model at a particular speed. Damage is represented as reduction in

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Zhao, Bingchao, Pan Chen, Jingbin Wang, Jingui Zhang, and Di Zhai. "A Comprehensive Evaluation and Analysis of Ground Surface Damage Due to Mining under Villages Based on GIS." Applied Sciences 13, no. 18 (2023): 10136. http://dx.doi.org/10.3390/app131810136.

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This paper aims to evaluate the severities and causes of ground surface building and cropland damages after coal mining in a better way, and to clarify the correlation between the damage assessment indexes that influence mining. Against the backdrop of multi-seam mining in certain coal mines in China, the estimated results of each displacement and deformation were analyzed using GIS technology. The damage range determined for each deformation index is divided according to the displacement and deformation combined with the virtue of damage judgment threshold. The damage ranges on the ground sur

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Auersch, L. "Characteristics of train passages over slab tracks from measurements and different track–soil models: Damage detection and ground vibration reduction." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 234, no. 2 (2019): 142–60. http://dx.doi.org/10.1177/0954409719835036.

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The characteristics of train passages over intact or damaged slab tracks on different soils have been calculated by the finite-element boundary-element method or the wavenumber-domain method. The influence of track and soil parameters on the distribution of track displacements and soil forces has been analysed. The measured and calculated displacement time histories of train passages could be used to identify track damages such as loose sleepers or a loose track plate. The time histories and spectra of soil forces can explain the measured ground vibration reduction in the slab tracks. The calc

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Guo, De Ping, and Masanori Hamada. "Lessons Learnt from Seismic Damage Induced by the 2008 Wenchuan Earthquake." Applied Mechanics and Materials 226-228 (November 2012): 889–96. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.889.

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The 2008 Wenchuan earthquake with a surface wave magnitude of 8.0 induced numerous infrastructure damages. The typical seismic damages of 61 bridges, 18 tunnels and slope reinforcements are presented. The results show longitudinal or transverse displacement was the most widespread bridge seismic damage and resulted in girder dropping, shear key failure, joint expansion and support damage. Pillar was sheared off or crushed failure due to strong motions and lack of sufficient hoop steels. Tunnel damage was mainly observed at portal, which was mostly caused by slope failure. Strong ground shaking

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Ruan, Zhigang, and Zuguang Ying. "Effectiveness analysis of structural anomaly diagnosis based on ANN model." Vibroengineering PROCEDIA 42 (May 16, 2022): 21–26. http://dx.doi.org/10.21595/vp.2022.22446.

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Assessing and localizing damages are an important problem in structural engineering. Artificial neural networks (ANN) have an excellent pattern recognition capability. In this paper, a structural anomaly diagnosis method based on ANN model using displacement response signals is proposed to assess and localize damages, and applied to a five-story frame structure under random base excitation. The random displacement responses are used as the input to ANN for detecting structural damages, which differ from conventional methods such as using modal parameters extracted from responses. The ANN model

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Thèses sur le sujet "Displacement damages"

Jouni, Ali. "Space radiation effects on CMOS single photon avalanche diodes (SPADs)." Electronic Thesis or Diss., Toulouse, ISAE, 2024. http://www.theses.fr/2024ESAE0012.

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Le sujet de cette thèse traite des effets des radiations spatiales sur des détecteurs CMOS à avalanches, et particulièrement sur les dispositifs SPADs (pour Single Photon Avalanche Diode en anglais, ou photodiode à avalanche à photon unique). Ces photodiodes présentent un gain interne presque infini et sont donc sensibles à des très faibles conditions de lumières. Ainsi, avec en plus une excellente résolution temporelle, ces capteurs peuvent être très intéressant pour des applications spatiales nécessitant des mesures de temps de vols, comme la topographie d’objets célestes ou les Rendez-vous

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Kim, Young-Seog. "Damage structures and fault evolution around strike-slip faults." Thesis, University of Southampton, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340659.

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Tappin, David Keith. "The characterisation of displacement cascades in austenitic Fe-Cr-Ni alloys." Thesis, University of Liverpool, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317254.

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Sutton, Akil K. "Displacement Damage and Ionization Effects in Advanced Silicon-Germanium Heterojunction Bipolar Transistors." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7217.

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A summary of total dose effects observe in advanced Silicon Germanium (SiGe) Heterojunction Bipolar Transistors (HBTs) is presented in this work. The principal driving froces behin the increased use of SiGe BiCMOS technology in space based electronics systems are outlined in the motivation Section of Chapter I. This is followed by a discussion of the strained layer Si/SiGe material structure and relevant fabrication techniques used in the development of the first generation of this technology. A comprehensive description of the device performance is presented. Chapter II presents an overview

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Khorsandi, Behrooz. "Modeling of displacement damage in silicon carbide detectors resulting from neutron irradiation." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1173103438.

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CAMBIAGGI, LUDOVICA. "Damage assessment of churches exposed to slope displacements in sliding areas." Doctoral thesis, Università degli studi di Genova, 2020. http://hdl.handle.net/11567/1029444.

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Protecting cultural heritage from water-soil interaction related threats is a current issue and the prediction of the effects of slope displacements on buildings is very challenging. The achievement of this goal is not straightforward since it usually requires high costs due to the great amount of data to be collected for setting up reliable forecasting models. Among these threats, slow moving landslides are considered in this research, because also small slope movements can seriously affect existing structures and cause damages. In this regard, the aim is to develop a simple but effective pro

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McKenna, Alice J. "Ab initio and molecular dynamic models of displacement damage in crystalline and turbostratic graphite." Thesis, University of Surrey, 2016. http://epubs.surrey.ac.uk/809906/.

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One of the functions of graphite is as a moderator in several nuclear reactor designs, including the Advanced Gas-cooled Reactor (AGR). In the reactor graphite is used to thermalise the neutrons produced in the fission reaction thus allowing a self-sustained reaction to occur. The graphite blocks, acting as the moderator, are constantly irradiated and consequently suffer damage. This thesis examines the types of damage caused using molecular dynamic (MD) simulations and ab intio calculations. Neutron damage starts with a primary knock-on atom (PKA), which is travelling so fast that it creates

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CONSOLANDI, CRISTINA. "Displacement damage induced by cosmic rays in silicon devices using geant4 toolkit for space applications." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2010. http://hdl.handle.net/10281/7870.

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In the space environment the dominant radiation at energies above 50 MeV/nucleon is constituted by the Galactic Cosmic Rays (GCRs) which are capable to inflict permanent damage to silicon devices. In particular the displacement damage was analyzed and the Non-Ionizing Energy Loss (NIEL) was calculated both at high and low energies in order to estimate the displacement damage for the entire energy range of the space radiation environment. Of particular relevance was the development of an improved implementation of the Geant4 single scattering model. This modification gives the possibility to

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Gerstel, Markus. "Radiation damage in protein crystallography : susceptibility study." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:be55baee-19b7-4a34-8694-fb9c3606a19c.

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Protein structure models obtained from X-ray crystallography are subject to radiation damage. The resulting specific alterations to protein structures can be mistaken for biological features, or may obscure actual protein mechanisms, leading to misidentification or obscuration of biological insight. The radiation chemistry behind this site-specific damage is not well understood. Radiation damage processes progress in proportion to the dose absorbed by the crystal in the diffraction experiment. Doses can be estimated using existing software, but these assume idealised experimental conditions. T

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Rauch, Alan F. "EPOLLS: An Empirical Method for Prediciting Surface Displacements Due to Liquefaction-Induced Lateral Spreading in Earthquakes." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/30346.

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In historical, large-magnitude earthquakes, lateral spreading has been a very damaging type of ground failure. When a subsurface soil deposit liquefies, intact blocks of surficial soil can move downslope, or toward a vertical free face, even when the ground surface is nearly level. A lateral spread is defined as the mostly horizontal movement of gently sloping ground (less than 5% surface slope) due to elevated pore pressures or liquefaction in undelying, saturated soils. Here, lateral spreading is defined specifically to exclude liquefaction failures of steeper embankments and retaining walls

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Livres sur le sujet "Displacement damages"

Displacement Damage Effects in Solar Cells: Mining Damage from the Microelectronics and Photonics Test Bed Space Experiment. Independently Published, 2020.

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Suhail, Peer Ghulam Nabi. Pieces of Earth. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199477616.001.0001.

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Resource exploitation in the form of land-grabbing has become a major debate worldwide. Based on extensive field research conducted at the India-Pakistan border, using Kishanganga Hydroelectric Project as a case study, this book on corporate land-grabbing in Kashmir explains how capital is at play in a conflict zone. The author explains how different actors—village elites, government officers, politicians, civil society coalitions, peasants, and the states of India and Pakistan—mobilize support to legitimize their respective claims. It captures how the tensions between developmentalism, enviro

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Moonesinghe, Ramini, and Sue Mallett. Acute pain in patients with renal or hepatic impairment. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199234721.003.0015.

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The metabolism and excretion of many analgesic drugs will be altered in the presence of renal or hepatic impairment. Some analgesic drugs can cause renal or hepatic damage. Protein binding of drugs may be altered by hepatic reduction in production or uraemic displacement from binding sites. In renal disease, paracetamol is the simple analgesic of choice. Morphine can be used with care in mild to moderate renal disease, but fentanyl or oxycodone may be better alternatives. Non-steroidal anti-inflammatory drugs should be avoided in renal disease. In hepatic disease with significant impairment, d

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Blaustein, George. Pictures from an Institution. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190209209.003.0004.

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The founding Americanist institution in postwar Europe took place in a baroque, bomb-damaged castle and had only the tenuous approval of the US military government in Austria. Leopoldskron Castle had been owned by the theater impresario Max Reinhardt before the Nazis expropriated it. The Salzburg Seminar in American Civilization, a transnational collaboration of student organizations and Christian relief agencies, repurposed the castle in 1947 to bring American thought and art to occupied Europe. Scholars, novelists, and poets carried the American word abroad and, in turn, were shaped by their

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Lawry-White, Merryl. Victims of Environmental Harm During Conflict. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198784630.003.0016.

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This chapter considers the interaction of some of the applicable norms related to liability and reparation for environmental damage in a post-conflict setting, including human rights and humanitarian law norms (including precedents) and their interaction with each other, with a focus on the potential consequences for victims. Using displacement as a specific case study, the discussion regarding potential consequences is supported by the learning that may be drawn from precedent reparations schemes, including those implemented in a ‘transitional justice’ framework as part of an attempt to affor

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Thornton, Fanny. Climate Change and People on the Move. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198824817.001.0001.

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The book applies a justice framework to analysis of the actual and potential role of international law with respect to people on the move in the context of anthropogenic climate change. That people are affected by the impacts of climate change is no longer doubted, including with implications for the movement of people (migration, displacement, relocation, etc.). The book tackles unique questions concerning international responsibility for people movement arising from the inequities inherent to climate change. Corrective and distributive justice provide the analytical backbone. They are explor

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O' Dochartaigh, Killian. Uppland. University of Edinburgh, 2024. http://dx.doi.org/10.2218/ed.9781836450290.

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Uppland is a 30-minute research film tracing the complex relationship between landscape, displacement and the global extractive industries within, and beyond, sub-Saharan Africa. The film documents a new-town called Yekepa, designed and built by and for a mining company prospecting for iron-ore in the late 1950s, that exploited and transformed the indigenous landscapes of Yeke’pa. The film represents an original collaboration between an architect and a filmmaker. This research took them to the remote highlands of Liberia, once a thriving mining community, now a concrete ruin in the West Africa

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Chapitres de livres sur le sujet "Displacement damages"

Izarova, Iryna, Oksana Uhrynovska, and Yuliia Hartman. "Procedural Issues in Compensation Cases: Insights from Court Practice in Ukraine." In Contributions to Security and Defence Studies. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-66434-2_9.

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AbstractThis chapter delves into the procedural issues encountered in compensation cases arising from the armed aggression of the Russian Federation against Ukraine. It highlights the necessity of restoring violated rights through effective legal mechanisms, particularly focusing on compensation for damages via judicial proceedings. The study examines Ukrainian court practices since 2014, aiming to understand social demands and propose efficient dispute resolution methods. Financial constraints initially hindered justice, with victims reluctant to pay court fees. Legislative changes in 2018 ex

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Song, Zhiyu, Yafei Zhai, and Guangkun Liu. "Analysis of Dynamic Response Characteristics of Towering Intake Towers Under the Action of Main-Aftershock Sequences." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-9184-2_22.

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AbstractAfter a strong earthquake occurs, it can cause a certain degree of damage to the structure, and the strong aftershock effect can cause secondary damage to the already damaged structure. In this study, taking a actual project of intake tower in the district of western strong earthquake as an example, the acoustic unit is used to simulate the dynamic effect of reservoir water on the tower body, and the overall nonlinear model of the water-intake tower-foundation is established. Combined with the site and seismic motion characteristics of the engineering area, the seismic motion sequence

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Ougouag, A. M., M. B. Danjaji, J. G. Williams, and J. F. Stubbins. "Neutron Displacement Damage Functions For Iron." In Proceedings of the Seventh ASTM-Euratom Symposium on Reactor Dosimetry. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2781-3_83.

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Olivero, Massimo, Guido Perrone, Alberto Vallan, and Silvio Abrate. "Plastic Optical Fiber Displacement Sensor for Cracks Monitoring." In Damage Assessment of Structures VII. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-444-8.487.

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Liu, Shihong, Qing Lei, Bo Jiang, and Yao Zeng. "Evaluation of Treatment Effect of Highway Subgrade Reconstruction Damaged by Large Landslide." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4355-1_18.

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AbstractHighway in mountainous area is easily threatened by landslide and other disasters, so it is necessary to comprehensively evaluate the prevention and control effect of the treatment when the subgrade is restored and rebuilt after landslide. In order to deeply study the landslide treatment effect of subgrade reconstruction, taking the landslide damage reconstruction of G326 highway in Guizhou Province as the object, the deformation and failure process of landslide induced by heavy rainfall is simulated, and the prevention effect of different treatment plans such as “cutting + anti-slide

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Claeys, Cor, and Eddy Simoen. "Displacement Damage in Group IV Semiconductor Materials." In Radiation Effects in Advanced Semiconductor Materials and Devices. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-04974-7_3.

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Fang, Miaomiao, Yuqi Wang, Jiaxin Liu, and Fan Sun. "Research on Support Damage of Highway Bridge Based on Midas." In Lecture Notes in Civil Engineering. Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1260-3_30.

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AbstractDuring the operation of highway bridges, the bearing stiffness will decrease with the service life, and the mechanical properties will also change. In order to study the influence of stiffness damage on bearing. In this paper, a continuous beam bridge is selected for finite element model analysis, and the effects of stiffness damage on bearing force and bearing offset under the conditions of concrete shrinkage and creep and 30 °C temperature difference are comprehensively considered. The results show that the bearing stiffness damage has little influence on the vertical displacement, h

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Jia, Yueqiao, and Jeffrey Chiang Choong Luin. "Finite Element Analysis of Reinforced Concrete Slab-Rectangular Column Connections Using ABAQUS." In Advances in Frontier Research on Engineering Structures. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8657-4_4.

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AbstractRectangular columns used in flat-slab structures run the risk of punching shear damage due to stress concentrations, especially when bending moments and vertical forces act together at the connections. Using the finite element analysis method, the existing experiments are numerically simulated using the 3D modeling software ABAQUS, and describe the cracking behavior of concrete using the concrete damaged plasticity model. The accuracy of the numerical simulation was calibrated by load–displacement curves and crack patterns using the experimental results. The study of the model was set

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Hamada, Masanori. "Liquefaction-Induced Ground Displacements: Damage and Countermeasures." In Springer Series in Geomechanics and Geoengineering. Springer Japan, 2014. http://dx.doi.org/10.1007/978-4-431-54892-8_4.

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Arai, Tatsuya, and Kenichi Sakaue. "Measurement of Crack Tip Displacement Field in Desiccating Paste." In Fracture, Fatigue, Failure, and Damage Evolution, Volume 5. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-06977-7_9.

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Actes de conférences sur le sujet "Displacement damages"

Abud Filho, Sérgio E., Zehbour Panossian, and Neusvaldo Lira de Almeida. "A New Copper/copper Sulfate Reference Electrode for External Corrosion Monitoring of Buried Pipelines." In CORROSION 2013. NACE International, 2013. https://doi.org/10.5006/c2013-02229.

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Abstract The external corrosion of cathodically protected buried pipelines can be monitored by using carbon steel corrosion coupons. These coupons are installed near buried pipelines and they are electrically connected to the pipelines through test points. Coupon weight loss, coupon visual and microscopic inspection, AC and DC pipeline/soil potential and electrical current measurements are very important to predict the pipeline external corrosion processes. To measure AC and DC pipeline/soil potential, copper/copper sulfate reference electrodes are installed near corrosion coupons to minimize

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Romero-Maestre, Amor, José de-Martín-Hernández, Pedro Martín-Holgado, et al. "Optocouplers Behavior Analysis on Neutron Displacement Damage." In 2024 RADECS Data Workshop. IEEE, 2024. https://doi.org/10.1109/radecs61975.2024.11017546.

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Piątek, Bartosz, Maciej Kulpa, Tomasz Siwowski, and Tomasz Howiacki. "Damage detection in post-tensioned concrete bridges using distributed fiber optic sensors." In IABSE Symposium, Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches. International Association for Bridge and Structural Engineering (IABSE), 2025. https://doi.org/10.2749/tokyo.2025.2505.

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<p>The paper presents research conducted on two pairs of post-tensioned concrete beams, where one beam served as a reference and the other was intentionally damaged in specified locations. The damages included cracks, chemically accelerated corrosion of strands and voids in the ducts. The main aim of the research was to evaluate the ability of distributed fiber optic sensors (DFOS) to identify local damages. DFOS were embedded inside the concrete cross-section, in pre-made near-surface grooves on the side surfaces of the beams, inside the ducts, and within the prestressing strands. These

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Martín-Holgado, Pedro, Amor Romero-Maestre, José de-Martín-Hernández, et al. "Effects of Proton Energy on Optocoupler Displacement Damage Tests." In 2024 RADECS Data Workshop. IEEE, 2024. https://doi.org/10.1109/radecs61975.2024.11017540.

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Martín-Holgado, Pedro, Amor Romero-Maestre, José de-Martín-Hernández, et al. "Low-Energy Proton Displacement Damage on Optocouplers at CNA." In 2024 RADECS Data Workshop. IEEE, 2024. https://doi.org/10.1109/radecs61975.2024.11017529.

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YAJIMA, YOSHIYUKI, MURTUZA PETLADWALA, TAKAHIRO KUMURA, and CHUL-WOO KIM. "NATURAL FREQUENCY AND DISPLACEMENT RATIO BASED PROBABILISTIC DAMAGE IDENTIFICATION FOR BRIDGES USING FE MODEL UPDATE." In Structural Health Monitoring 2023. Destech Publications, Inc., 2023. http://dx.doi.org/10.12783/shm2023/37012.

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This paper proposes a natural frequency and displacement ratio-based probabilistic damage identification method for bridges using the finite element (FE) model update. When the damage location is known, it can be detected from an appropriate damagesensitive feature (DSF). However, damaged components are seldom known before inspections. This makes it difficult to find an appropriate DSF and damage identification is sometimes challenging. This paper aims to propose a method to solve this issue by integrating multiple DSFs, natural frequencies and displacement ratio, as a decisionlevel data fusio

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"Improving the Drive-by Bridge Inspection Performance by Vehicle Parameter Optimization." In Structural Health Monitoring. Materials Research Forum LLC, 2021. http://dx.doi.org/10.21741/9781644901311-23.

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Abstract. Recently, there has been an increasing emphasis in the Indirect bridge health monitoring method employing passing vehicles, which is regarded as one of the most effective approaches in bridge damage screening. However, few researches have been conducted on the Drive-by bridge inspection method using vehicle displacement profile as damage indicator due to the challenges in displacement measurement and result accuracy. This paper proposes an optimization approach of designing the optimum vehicle parameters to improve the performance of vehicle displacement-based Drive-by bridge damage

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Yan, Renjun, Yao Qi, Bailu Luo, Jiajing Lei, and Peng Li. "Computing Methods and Application Development of Longitudinal Strength of Damaged Ships." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-21027.

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In this paper, it starts by providing a description of the scenarios of damages that can be found in the various accidental events. Based on a traditional standardized approach for calculating longitudinal strength of ships, an improved method for longitudinal strength of damaged ships, which can be applied to any traditional type of ships, is presented in next section. The variation of loads in damaged ships is related to the effects of the ingress of water with the consequences of changing the ship displacement, a non-symmetric floating body, and the load case of compartments before damage,

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Arumugam, Udayasankar, Shree Krishna, Ryan Milligan, and Ravi Krishnamurthy. "Assessment of Pipeline Damages Caused by Ship Anchor-Chain Drag Incidents." In 2024 15th International Pipeline Conference. American Society of Mechanical Engineers, 2024. https://doi.org/10.1115/ipc2024-134100.

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Abstract Offshore pipelines are at increased risk of damage from dropped objects such as anchors, chains, and dumped rock debris from fishing or other activities. Depending on the complexity of vessel movements and the duration, it can lead to varying magnitudes of global and local damage to the pipeline. Pipeline global damage includes buckling and pipeline bending, which leads to a high tensile stress/strain state that could cause girth weld failure. The local damage is often formed by contact between the anchor/chain and pipe, causing pipe crushing, dents, buckle/wrinkles, gouges, cracks, o

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Yang, Yang, and Xianglin Gu. "Collapse Simulation of Damaged Reinforced Concrete Frame Structures in Earthquakes." In IABSE Congress, New York, New York 2019: The Evolving Metropolis. International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.1011.

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<p>A simulation system based on the discrete element method (DEM) was developed to simulate the collapse behavior of damaged reinforced concrete (RC) frame structures in earthquakes. A frame structure was discretized into beam-column-joint discrete system according to its failure mode. The elements were assumed to be cuboid, and a group of concrete springs and steel bar springs were set between two adjacent elements to represent their interactions. The failure of material was initiated by fracture of springs, and the impact actions among separated components were considered. Using the si

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Rapports d'organisations sur le sujet "Displacement damages"

Auden, Elizabeth Catherine. Basic Mechanisms: Displacement Damage. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1524360.

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Auden, Elizabeth Catherine. Test Standards: Displacement Damage. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1524361.

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Mueller, G. P. The Inadequacies of Damage Energy as a Measure of Displacement Damage. Defense Technical Information Center, 1989. http://dx.doi.org/10.21236/ada207376.

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Griffin, Patrick. Relationship between Metrics Used to Represent Displacement Damage in Materials. Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1617630.

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Stoller, R. E., and L. R. Greenwood. Influence of subcascade formation on displacement damage at high PKA energies. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/543219.

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Esparza and Westine. L51482 Well Casing Response to Buried Explosive Detonations. Pipeline Research Council International, Inc. (PRCI), 1985. http://dx.doi.org/10.55274/r0010272.

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Occasionally, buried explosives are used within proximity of producing oil and gas wells which increases the stresses in the casing near the explosion which may result in failure of the well. A procedure was needed for predicting the maximum stresses in producing oil and gas wells, specifically the well casing, induced by nearby, buried, explosive detonations. An extensive experimental and analytical program were funded and performed over a six (6) year period 1975-1981. The program was divided into two (2) parts: In the first part, similitude theory, empirical analyses and test data were used

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Doyle, Barney Lee. Displacement damage caused by gamma-rays and neutrons on Au and Se. Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1177090.

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Stephens, Olson, and Rosenfeld. L51620 Pipeline Monitoring--Limit State Criteria. Pipeline Research Council International, Inc. (PRCI), 1991. http://dx.doi.org/10.55274/r0010607.

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With the growing emphasis on extending the useful operation of existing pipelines and reducing the operating costs, the pipeline industry is sensitive to keeping pipelines in service and having a rational basis for doing so. When pipelines undergo fault displacement, mining subsidence, thaw settlement, or landslide induced soil loading, monitoring of pipeline strains and/or displacements must protect their integrity. Currently, there is little information available to indicate when remedial action is necessary for such a pipeline. This report focuses on assisting pipe-monitoring programs by pr

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Doyle, Barney Lee, Daniel L. Buller, Harold Paul Hjalmarson, Robert M. Fleming, Edward Salvador Bielejec, and Gyorgy Vizkelethy. Simulation of neutron displacement damage in bipolar junction transistors using high-energy heavy ion beams. Office of Scientific and Technical Information (OSTI), 2006. http://dx.doi.org/10.2172/913228.

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Terzic, Vesna, and William Pasco. Novel Method for Probabilistic Evaluation of the Post-Earthquake Functionality of a Bridge. Mineta Transportation Institute, 2021. http://dx.doi.org/10.31979/mti.2021.1916.

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While modern overpass bridges are safe against collapse, their functionality will likely be compromised in case of design-level or beyond design-level earthquake, which may generate excessive residual displacements of the bridge deck. Presently, there is no validated, quantitative approach for estimating the operational level of the bridge after an earthquake due to the difficulty of accurately simulating residual displacements. This research develops a novel method for probabilistic evaluation of the post-earthquake functionality state of the bridge; the approach is founded on an explicit eva

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