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Rozprawy doktorskie na temat „Displacement damages”

Autor: Grafiati

Data publikacji: 16 listopada 2024

Data aktualizacji: 31 lipca 2025

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1

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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Walldén, Johan. "Radiation Induced Effects in Electronic Devices and Radiation Hardening By Design Techniques." Thesis, Linköpings universitet, Elektroniska komponenter, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-109343.

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The aim with this thesis has been to make a survey of radiation hardened electronics, explaining why and how radiation affects electronics and what can be done to harden it. The effects radiation have on electronics in general and in specific commonly used devices are explained qualitatively. The effects are divided into Displacement Damage (DD), Total Ionizing Dose (TID) and Single Event Effects (SEEs). The devices explained are MOSFETs, Silicon On Insulator (SOI) transistors, 3D-transistors, Power transistors, Optocouplers, Field Programmable Gate Arrays (FPGAs), three dimensional circuits (

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12

Singh-Levett, Ishan. "Real-time integral based structural health monitoring." Thesis, University of Canterbury. Mechanical Engineering, 2006. http://hdl.handle.net/10092/1171.

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Structural Health Monitoring (SHM) is a means of identifying damage from the structural response to environmental loads. Real-time SHM offers rapid assessment of structural safety by owners and civil defense authorities enabling more optimal response to major events. This research presents an real-time, convex, integral-based SHM methods for seismic events that use only acceleration measurements and infrequently measured displacements, and a non-linear baseline model including hysteretic dynamics and permanent deformation. The method thus identifies time-varying pre-yield and post-yield

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Yilmaz, Taner. "Seismic Response Of Multi-span Highway Bridges With Two-column Reinforced Concrete Bents Including Foundation And Column Flexibility." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12610191/index.pdf.

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Seismic design of highway bridges has improved as a result of the experience gained from large earthquakes of the last thirty years. Ductility demand and reserved capacity are extremely important response measures used in new bridge designs to assess target damage levels. However, the application of practical design approaches specified in bridge design codes is not well-defined for bridges over flexible foundations. Within the scope of this research, thirty two bridge models having varying column aspect ratio, amount of column longitudinal reinforcement and foundation flexibility parameters a

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Palmer, Logan Matthew. "Development of a Simplified Analysis Approach for Predicting Pile Deflections of Piers Subjected to Lateral Spread Displacements and Application to a Pier Damaged During the 2010 Maule, Chile, M8.8 Earthquake." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/7045.

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The 2010, moment magnitude 8.8 earthquake that occurred near Maule, Chile caused major damages to several piers in the Port of Coronel located approximately 160 kilometers (100 miles) to the South of the earthquake epicenter. One of the piers, the North Pier, experienced significant lateral spreading that was caused from liquefaction of the soils at the approach zone of the pier. Damages from lateral spreading and liquefaction effects consisted of sheet pile welding ruptures of the cross-support beams, stiffener buckling, pile displacements, pile rotations, and pier deck displacement. Research

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15

Kulisek, Jonathan Andrew. "The Effects of Nuclear Radiation on Schottky Power Diodes and Power MOSFETs." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1267502877.

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Ursule, Marie-Cécile. "Compréhension des mécanismes physiques à l'origine des dégradations électriques extrêmes des pixels dans les capteurs d'images irradiés." Thesis, Toulouse, ISAE, 2017. http://www.theses.fr/2017ESAE0014/document.

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Les capteurs d'images sont utilisés dans diverses applications spatiales : observation spatiale, calcul d'attitude etc. Ces capteurs évoluent dans l’environnement spatial dont les rayonnements entraînent une dégradation de leurs performances. Parmi les paramètres impactés, nous nous intéressons au courant d'obscurité des pixels. Ce courant parasite correspond à la génération de porteurs de charges sans lumière par simple excitation thermique, induisant l'augmentation du bruit de fond des images. Les pixels fortement dégradés sont particulièrement pénalisants pour les missions spatiales. Cet ef

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17

Virmontois, Cédric. "Analyse des effets des déplacements atomiques induits par l’environnement radiatif spatial sur la conception des imageurs CMOS." Thesis, Toulouse, ISAE, 2012. http://www.theses.fr/2012ESAE0009/document.

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L' imagerie spatiale est aujourd'hui un outil indispensable au développement durable, à la recherche et aux innovations scientifiques ainsi qu’à la sécurité et la défense. Fort de ses excellentes performances électro-optiques, de son fort taux d’intégration et de la faible puissance nécessaire à son fonctionnement, le capteur d’images CMOS apparait comme un candidat sérieux pour ce type d’application. Cependant, cette technologie d’imageur doit être capable de résister à l’environnement radiatif spatial hostile pouvant dégrader les performances des composants électroniques. Un nombre important

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Nayyerloo, Mostafa. "Real-time Structural Health Monitoring of Nonlinear Hysteretic Structures." Thesis, University of Canterbury. Department of Mechanical Engineering, 2011. http://hdl.handle.net/10092/6581.

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The great social and economic impact of earthquakes has made necessary the development of novel structural health monitoring (SHM) solutions for increasing the level of structural safety and assessment. SHM is the process of comparing the current state of a structure’s condition relative to a healthy baseline state to detect the existence, location, and degree of likely damage during or after a damaging input, such as an earthquake. Many SHM algorithms have been proposed in the literature. However, a large majority of these algorithms cannot be implemented in real time. Therefore, their result

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Hardie, Christopher David. "Micro-mechanics of irradiated Fe-Cr alloys for fusion reactors." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:a3ac36ba-ca6f-4129-8f37-f1278ef8a559.

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In the absence of a fusion neutron source, research on the structural integrity of materials in the fusion environment relies on current fission data and simulation methods. Through investigation of the Fe-Cr system, this detailed study explores the challenges and limitations in the use of currently available radiation sources for fusion materials research. An investigation of ion-irradiated Fe12%Cr using nanoindentation with a cube corner, Berkovich and spherical tip, and micro-cantilever testing with two different geometries, highlighted that the measurement of irradiation hardening was larg

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Cai, Yinfei. "Simulation des affaissements miniers et de leurs conséquences sur le bâti." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0010/document.

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L’objectif de cette thèse est, d’une part, de proposer une amélioration des méthodes d’estimation des cuvettes d’affaissement et des méthodes d’évaluation des dommages susceptibles de se produire sous leurs effets et de l’autre, de développer des outils basés sur ces méthodes pour étudier les affaissements et les dommages sur des cas pratiques. L’étude de l'influence de la topographie sur les cuvettes d'affaissement dans des conditions d’exploitation simplifiées grâce à des modèles numériques avec des profondeurs d'exploitation et des pentes du sol variables a permis de proposer une nouvelle f

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Ferraro, Rudy. "Development of Test Methods for the Qualification of Electronic Components and Systems Adapted to High-Energy Accelerator Radiation Environments." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS118.

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Le Grand collisionneur de hadrons (LHC), le plus grand et le plus puissant au monde, a démarré en 2008 et constitue la dernière étape du complexe des accélérateurs du CERN. Le LHC consiste en un anneau de 27 kilomètres d'aimants supraconducteurs permettant d'accélérer deux faisceaux jusqu'à 7 TeV avant de les faire entrer en collision à 14 TeV dans l'une des cinq expériences de contrôle du résultat de la collision. Le LHC a notamment permis la découverte du boson de Higgs et d'autres particules baryoniques prédites par le modèle standard. L'environnement de rayonnement du LHC et de ses lignes

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Sutton, Akil Khamisi. "Hardness assurance testing and radiation hardening by design techniques for silicon-germanium heterojunction bipolar transistors and digital logic circuits." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29778.

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Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Cressler, John; Committee Member: Deo, Chaitanya; Committee Member: Doolittle, Alan; Committee Member: Keezer, David; Committee Member: May, Gary; Committee Member: Papapolymerou, John. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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Цих, В. С. "Розроблення методу та засобу контролю дефектів ізоляції підземних трубопроводів". Thesis, Івано-Франківський національний технічний університет нафти і газу, 2014. http://elar.nung.edu.ua/handle/123456789/4703.

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Дисертація присвячена питанню контролю ізоляційного покриття підземних трубопроводів на території технологічних об’єктів нафтогазового комплексу. Проведено аналіз основних методів і засобів контролю технічного стану ізоляційного покриття підземних трубопроводів. Поділено всі існуючі дефекти ізоляції на два види: наскрізні пошкодження та відшарування. Проаналізовано особливості дефекту ізоляційного покриття типу відшарування ізоляції та його вплив на зміну електричних характеристик підземного ізольованого трубопроводу. Доведено доцільність застосування електромагнітного фазового методу контролю

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Min-HsiangHu and 胡閔翔. "Damage Assessment of Nonlinear Structures Based on theNormalized Relative Displacement Vibration Shape." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/10575742260036696853.

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碩士<br>國立成功大學<br>土木工程學系碩博士班<br>100<br>This study presents a damage assessment scheme for seismically-excited torsion-coupled nonlinear buildings based on the normalized relative displacement vibration shape (NRDVS). In order to investigate the applicability of proposed NRDVS, the relative displacements are obtained from a real-time structural response integrator (RTSRI) by integrating the relative accelerations simulated from multiple-degree-of -freedom nonlinear models and torsion-coupled models. As a result, the normalized inter-story drift ratio (NIDR) calculated by differencing the normaliz

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Wu, Yi-Ying, and 吳怡瑩. "A damage indicator for building-soil systems using dynamic displacement frequency response functions." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/33073809822771770129.

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碩士<br>國立臺灣科技大學<br>營建工程系<br>104<br>This study develops a damage detection method for building-soil systems. A normalized damage indicator (NDI) utilizing frequency response functions is proposed to localize damaged stories in building structures. To evaluate the proposed damage indicator, a numerical example of a five-story RC building subjected to harmonic waves is investigated in this study. The influence of the random noise and the structural damage extent as well as soil shear velocity are examined. In addition, the new approach is further applied in the earthquake analysis. The ROC curve a

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Ruei-LinWu and 吳瑞琳. "A Rapid Structural Damage Assessment Scheme Based on the Normalized Relative Displacement Vibration Shape." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/35828273812642250050.

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Wen-JenHuang and 黃文仁. "Study on the Correlation of Normalized Relative Displacement Vibration Shape to Building Damage Level." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/9pdt3r.

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碩士<br>國立成功大學<br>土木工程學系碩士在職專班<br>107<br>The purpose of this paper is to try to use the existing seismic monitoring data of the building, apply the system identification method to obtain the Normalized Relative Displacement Vibration Shape (NRDVS) of the structure, and calculate the Normalized Inter-story Driift Ratior (NIDR) calculated by NRDVS. The change situation, as the basis for determining the seismic damage classification of buildings, provides another selection method for quicker and more accurate judgment by providing structural damage classification. this paper is to use the Norma

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Li, Chi-Hang, and 李其航. "Application of Spatial Displacement Measurement on Damage Assessment from both Local and Global Structural System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/08694090033252055998.

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碩士<br>國立臺灣大學<br>土木工程學研究所<br>100<br>In this research, the capability of advance spatial displacement measurement for structural health monitoring (SHM) is studied. The method for obtaining this kind of data is different from regular measuring system. It utilizes the optical processing technique to calculate the specific particles’ locations (called targets) within an image. While taking image and compute the locations over time, the dynamic motion can be estimated. This research employed the three dimensional displacement from optical sensors to identify system and perform damage assessment. Th

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Diederichs, Anna K. "Geodetic methods of mapping earthquake-induced ground deformation and building damage." Thesis, 2020. http://hdl.handle.net/1828/12031.

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I use temporal lidar and radar to reveal fault rupture kinematics and to test a method of mapping earthquake-induced structural damage. Using pre- and post-event data, these applications of remote technology offer unique perspectives of earthquake effects. Lidar point clouds can produce high resolution, three-dimensional terrain maps, so subtle landscape shifts can be discerned through temporal analysis, providing detailed imagery of co-seismic ground displacement and faulting. All-weather radar systems record back-scattered signal amplitude and phase. Pre- and post-event comparisons of phase

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Ayyildiz, Muhammed. "Scales Depencence of Fracture Density and Fabric in the Damage Zone of a Large Displacement Continental Transform Fault." Thesis, 2012. http://hdl.handle.net/1969.1/148095.

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Characterization of fractures in an arkosic sandstone from the western damage zone of the San Andreas Fault (SAF) at San Andreas Fault Observatory at Depth (SAFOD) was used to better understand the origin of damage and to determine the scale dependence of fracture fabric and fracture density. Samples for this study were acquired from core taken at approximately 2.6 km depth during Phase 1 drilling at SAFOD. Petrographic sections of samples were studied using an optical petrographic microscope equipped with a universal stage and digital imaging system, and a scanning electron microscope with ca

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林一鳴. "The damage ratio assessment of water pipelines based on 921 seismic displacements measured at triangular points." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/28354574559686310541.

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碩士<br>國立臺北科技大學<br>環境規劃與管理研究所<br>91<br>The common way to study the scenario of lifeline damages caused by earthquake is to establish the relationship of repair rate and earthquake parameters. This study focuses on the parameter of Permanent Ground Deformation (PGD) to construct water pipeline damage model. During the analysis for each town, the range of repair rate and PGD data are limited, which causes pronounced impacts with respect to regression due to a little variation. In addition, the grid-based analysis also introduces the uncertainty from the discreteness of spatial elements. Lengths o

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Wildy, Stuart James. "Scanning laser doppler vibrometry for strain measurement and damage detection." Thesis, 2012. http://hdl.handle.net/2440/93519.

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Numerous strain measurement and damage detection techniques have been developed over the last century. These techniques include strain gauges, digital image correlation, radiography and ultrasonic inspections. All have various advantages, as well as disadvantages, which make each suited to specific applications. With the development of laser Doppler vibrometry, a number of techniques have been established for non-destructive evaluation, such as the measurement of bending strain, as well as damage detection using kinematic parameters, including displacement and curvature. With recent advancemen

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Lee, Tai-Kuang, and 李泰廣. "Application of Endochronic Viscoplasticity with Cyclic Damage to Sn/3.5Ag/0.75Cu Solder Joint Specimens under Cyclic Proportional Displacement Path." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/62006065891178527327.

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碩士<br>國立成功大學<br>工程科學系碩博士班<br>95<br>In order to find stress-strain-damage behavior of solder ball by using solder joint specimen, this thesis defined, at first, the stiffness of material testing system, whose value could be determined from the slope of linear range of loading or unloading of the load-displacement hysteresis loop. Within this range, the solder joints behaved linear elastic with Young’s modulus and shear modulus of bulk material. As a result, the (elastic) stiffness of solder joint specimen under proportional displacement path (Φ) could be determined. Employing the series combina

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Chang, Jun-Wei, and 張峻偉. "Prediction Fatigue Initiation Life of 63Sn/37Pb Solder Joint Specimens under Cyclic Proportional Displacement Path Via The Endochronic Viscoplasticity with Cyclic Damage." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/69684114299140282725.

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碩士<br>國立成功大學<br>工程科學系碩博士班<br>96<br>In 2007, for the solder joint Sn/3.5Ag/0.75Cu cyclic proportional displacement path, Lee and Lee proposed the modification of solder joint specimen with stiffness of material testing system, and figured out the grip stiffiness by using series connetion concept. In 2002, Park used the same way to make the experiment with 63Sn/37Pb solder joint. In this paper, the material parameters , and were determined with Lee and Chen research on a 63Sn/37Pb bar whose area is , and the length is . Combining the material parameters and specimen parameter which were get

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Lin, Tai-tin, and 林泰廷. "Prediction of Fatigue Initiation Life of BGA (Sn/3.5Ag/0.75Cu) Solder Joint Specimens under Cyclic Proportional Displacement Path via Damage Coupled Endochronic Viscoplasticity." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/05206097374183755900.

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碩士<br>國立成功大學<br>工程科學系碩博士班<br>97<br>The purpose of this paper is to investigate the fatigue initiation life prediction of BGA (Sn/3.5Ag/0.75Cu) solder joint specimens under mixed mode cyclic proportional displacement path( ) .First, by using the BGA solder joint standoff 0.52mm to adjust the displacement-loading data of the master's thesis of Lee, T. K. in 2007. And continue with using the material parameters and kernel function of Endochronic cyclic viscoplasticity to simulate cyclic stress-strain curve under proportional displacement path. Then using the effective inelastic strain and effect

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