Relevant bibliographies by topics / Finite element modal updating / Dissertations / Theses
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Dissertations / Theses on the topic 'Finite element modal updating'

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Published: 14 March 2023

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1

Li, Yi Yuan. "Direct finite element model updating using incomplete modal data inspired from system control." Thesis, University of Macau, 2017. http://umaclib3.umac.mo/record=b3691080.

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2

Gotin, Nathalie. "Finite Element Model Updating for Rotary Machinery." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/864.

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The main approach of this thesis was to develop a mathematical model that represents a rotary machine. Experimental data was used to define a finite element model (FEM). In order to obtain the experimental data, the rotary machine had to be balanced. An impact hammer test made it possible to obtain frequency response functions (FRF). The frequency response functions were curvefitted in order to obtain the mode shapes and natural frequencies. Mathematical models have been created with ABAQUS and Matlab. For the Matlab Model the assumption has been made that the rotor machine consists of a speci
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3

Hanson, David Mechanical &amp Manufacturing Engineering Faculty of Engineering UNSW. "Operational modal analysis and model updating with a cyclostationary input." Awarded by:University of New South Wales. School of Mechanical and Manufacturing Engineering, 2006. http://handle.unsw.edu.au/1959.4/31199.

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This thesis addresses the problem of identifying the modal properties of a system based only on measurements of the system responses. This situation is frequently encountered in structural dynamics and is particularly relevant for systems where the in-service excitation is not artificially reproducible. The inherent non-linearities in these systems mean that the modal properties estimated using traditional input/output techniques will be different to those exhibited in operation. A common example from the literature is an aircraft in flight where the modal properties are heavily influenced by
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4

Ozturk, Murat. "Finite Element Structural Model Updating By Using Experimental Frequency Response Functions." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/2/12610608/index.pdf.

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Initial forms of analytical models created to simulate real engineering structures may generally yield dynamic response predictions different than those obtained from experimental tests. Since testing a real structure under every possible excitation is not practical, it is essential to transform the initial mathematical model to a model which reflects the characteristics of the actual structure in a better way. By using structural model updating techniques, the initial mathematical model is adjusted so that it simulates the experimental measurements more closely. In this study, a sensitivity-b
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5

Levin, Robert Ian. "Dynamic Finite Element model updating using neural networks." Thesis, University of Bristol, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264075.

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6

Waters, Timothy Paul. "Finite element model updating using frequency response functions." Thesis, University of Bristol, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294617.

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7

Terrell, Michael John. "Constrained generic substructures in finite element model updating." Thesis, University of Bristol, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430175.

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8

Greening, Paul David. "Dynamic finite element modelling and updating of loaded structures." Thesis, University of Bristol, 1999. http://hdl.handle.net/1983/5f23c082-ba8b-4860-a81d-ca5e507fd632.

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9

Pilkey, Deborah F. "Computation of a Damping Matrix for Finite Element Model Updating." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/30453.

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The characterization of damping is important in making accurate predictions of both the true response and the frequency response of any device or structure dominated by energy dissipation. The process of modeling damping matrices and experimental verification of those is challenging because damping can not be determined via static tests as can mass and stiffness. Furthermore, damping is more difficult to determine from dynamic measurements than natural frequency. However, damping is extremely important in formulating predictive models of structures. In addition, damping matrix identificati
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10

Khodaparast, Hamed Haddad. "Stochastic finite element model updating and its application in aeroelasticity." Thesis, University of Liverpool, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.548785.

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11

Than, Soe Muang. "Vibration-based finite element model updating and structural damage identification." Thesis, University of Greenwich, 2013. http://gala.gre.ac.uk/11451/.

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Damage and material deterioration could lead to structural failure with unknown consequences. Structural health monitoring strategy based on vibration measurements for existing aging structures offers a promising technique for effectively managing the deteriorating structures. The main objectives of this research are to develop a procedure for finite element model updating by using incomplete modal data identified from vibration measurements, to develop real time structural damage detecting method by directly using vibration measurements and then identify the damage at detailed location and ex
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12

Lee, Youngho. "Finite element model updating of loaded and geometrically modified structures." Thesis, University of Bristol, 2006. http://hdl.handle.net/1983/f7493e73-ad88-438c-8b8e-a3e801ec9947.

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13

Hermsdorf, Nathanael. "Optimierung eines FE-Modells auf Grundlage einer experimentellen Modalanalyse." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-264923.

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Knowledge about the dynamic behaviour is a basic condition for a secure operation of modern machine tools. Hence numerical methods predicting the dynamic properties are gaining in importance. Usually for complex and coupled structures, the results of dynamic property calculation are yet insufficient. Therefore Finite Element model updating is a tool to improve the hypothetical factor of the analysis. Within the present thesis Finite Element modelling is performed using the example of the “Scherenkinematik”, a machine tool based on hybrid-kinematics. Initially the results of an Experimental Mod
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14

DeGregory, Christopher P. "Finite element model updating and damage detection using artificial boundary conditions." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1999. http://handle.dtic.mil/100.2/ADA361817.

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Thesis (M.S. in Mechanical Engineering) Naval Postgraduate School, March 1999.<br>"March 1999". Thesis advisor(s): Joshua H. Gordis. Includes bibliographical references (p. 77). Also available online.
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15

Nizamiev, Kamil. "Stochastic Galerkin Model Updating of Randomly Distributed Parameters." University of Akron / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1302884328.

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16

Ng, G. H. T. "Finite element model updating by using natural frequency and mode shape sensitivities." Thesis, Swansea University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638321.

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Three finite element model updating approaches are considered in this thesis. In the first updating approach, a line search method is used in conjunction with the existing two level Gauss-Newton approach. This two level updating approach was used to tackle the problem of shape function discretization and enabled a coarse finite element model to be updated without discretization bias. The purpose of the line search method is to place the updated estimates, which are obtained at each iteration step of the Newton method, in a superior position for the next Newton iteration. Accordingly, convergen
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17

Calvi, Adriano. "Finite element model updating in structural dynamics using design sensitivity and optimisation." Thesis, Cranfield University, 1998. http://dspace.lib.cranfield.ac.uk/handle/1826/10507.

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Model updating is an important issue in engineering. In fact a well-correlated model provides for accurate evaluation of the structure loads and responses. The main objectives of the study were to exploit available optimisation programs to create an error localisation and updating procedure of nite element models that minimises the "error" between experimental and analytical modal data, addressing in particular the updating of large scale nite element models with severe requirements on the mode shapes correlation. A new methodology and procedure that allows the semi-automatic adjustment of a l
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18

Lee, Soon Gie. "Hybrid Damage Identification Based on Wavelet Transform and Finite Element Model Updating." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1333676433.

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19

Garcia, André Mendes. "Ajuste de modelos estruturais aplicado em problema de contato /." Ilha Solteira : [s.n.], 2006. http://hdl.handle.net/11449/94547.

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Orientador: João Antônio Pereira<br>Banca: Amarildo Tabone Paschoalini<br>Banca: Heraldo Nélio Cambraia<br>Resumo: O presente trabalho propõe uma metodologia de ajuste de modelos de elementos finitos aplicado a problemas de contato. O ajuste do modelo é realizado através da atualização dos parâmetros físicos e/ou geométricos do modelo bem como dos parâmetros dos elementos de contato. O método utilizado é baseado nas FRF(s) e é formulado a partir de um resíduo de entrada, dado pelo balanço de força do sistema. Um software é implementado para fazer a comparação e correlação dos modelos analítico
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20

Marrè, Badalló Roser. "Implementation and Testing of Two Bee-Based Algorithms in Finite Element Model Updating." Thesis, KTH, Bro- och stålbyggnad, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-140846.

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Finite Element Model Updating has recently arisen as an issue of vast importance on the design, construction and maintenance of structures in civil engineering. Many algorithms have been proposed, developed and enhanced in order to accomplish the demands of the updating process, mainly to achieve computationally efficient programs and greater results.The present Master Thesis proposes two new algorithms to be used in Finite Element Model Updating: the Bees Algorithms (BA) and the Artificial Bee Colony algorithm (ABC). Both were first proposed in 2005, are based on the foraging behaviour of bee
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21

XHIXHA, ELONA. "PASSIVE METHOD FOR DYNAMIC CHARACTERIZATION OF SOIL AND BUILDINGS." Doctoral thesis, Università di Siena, 2017. http://hdl.handle.net/11365/1013203.

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The research followed consist mainly on the use of passive methods for dynamic characterization of soil and building. Local Seismic Response of the construction site and Calibration of FE model of a reinforced concrete building have been performed. Passive seismic measurements have been acquired by two portable seismographs synchronized by each other with GPS antenna. Subsequently, structural verifications (global structural response) have been realized using once the response spectrum estimated from Local Seismic Response and once from technical standards. Finally, confronts between results h
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22

Lindholm, Brian Eric. "A Bayesian statistics approach to updating finite element models with frequency response data." Diss., This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-06062008-152108/.

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23

Garcia, André Mendes [UNESP]. "Ajuste de modelos estruturais aplicado em problema de contato." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/94547.

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Made available in DSpace on 2014-06-11T19:27:14Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-10-31Bitstream added on 2014-06-13T19:55:35Z : No. of bitstreams: 1 garcia_am_me_ilha.pdf: 659750 bytes, checksum: 7318de4cdef56cfcd2a84f0bc10c3fbb (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>O presente trabalho propõe uma metodologia de ajuste de modelos de elementos finitos aplicado a problemas de contato. O ajuste do modelo é realizado através da atualização dos parâmetros físicos e/ou geométricos do modelo bem como dos parâmetros dos elementos de cont
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24

Renken, Jay A. "Optimal solution selection for sensitivity-based finite element model updating and structural damage detection." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1995. http://handle.dtic.mil/100.2/ADA306053.

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Thesis (M.S. in Mechanical Engineering and Mechanical Engineer) Naval Postgraduate School, December 1995.<br>Thesis advisor(s): Joshua H. Gordis. "December 1995." Includes bibliographical references. Also available online.
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25

Pampalone, Michael R. "Development, correlation and updating of a finite element model of the OH-6A helicopter." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1996. http://handle.dtic.mil/100.2/ADA333338.

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26

Fernandez, Constance R. S. "Artificial boundary conditions in sensitivity based finite element model updating and structural damage detection." Thesis, Monterey California. Naval Postgraduate School, 2005. http://hdl.handle.net/10945/1786.

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A finite element (FE) model is a computational representation of a given structure. In order for the FE model to accurately predict structure response, the model is "updated" or improved. This thesis investigates the use of artificial boundary conditions in sensitivity-based model updating and damage detection. A comparative analysis was conducted on the accuracy of error identification and location with respect to the artificial boundary conditions imposed and the number of modes retained. Results are demonstrated with actual test data from a simple structure.
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27

ZHU, SHICHAO. "RECURSIVE MULTI-MODEL UPDATING OF BUILDING STRUCTURE: A NEW SENSITIVITY BASED FINITE ELEMENT APPROACH." Doctoral thesis, Politecnico di Torino, 2016. http://hdl.handle.net/11583/2643111.

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An invaluable tool for structural health monitoring and damage detection, parametric system identification through model-updating is an inverse problem, affected by several kinds of modelling assumptions and measurement errors. By minimizing the discrepancy between the measured data and the simulated response, traditional model-updating techniques identify one single optimal model that behaves similarly to the real structure. Due to several sources of errors, this mathematical optimum may be far from the true solution and lead to misleading conclusions about the structural state. Instead of th
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28

Conradie, Johan. "Finite Element Modelling of Off-Road Tyres." Diss., University of Pretoria, 2014. http://hdl.handle.net/2263/45957.

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Most tyre models developed to date require a fair amount of data before an accurate representation of the tyre can be obtained. This study entails the development of a simplified, yet accurate, non-linear Finite Element (FE) model of an “off-road” tyre to study the behaviour of the tyre due to radial loading conditions. The study aims to develop a FE tyre model that can solve fast and be accurate enough to be used in multibody dynamic vehicle simulations. A model that is less complex than conventional detailed FE models is developed. The work explores the use of superimposed finite elements t
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29

Kodikara, Kodikara Arachchige Tharindu Lakshitha. "Structural health monitoring through advanced model updating incorporating uncertainties." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/110811/1/Kodikara%20Arachchige%20Tharindu%20Lakshitha_Kodikara_Thesis.pdf.

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This research developed comprehensive model updating systems for real structures including a hybrid approach which enhanced existing deterministic model updating techniques by providing measures to incorporate uncertainties in a computationally efficient way compared to probabilistic model updating approaches. Further, utilizing the developed hybrid approach a methodology was developed to assess the deterioration of reinforced concrete buildings under serviceability loading conditions. The developed methodologies in the research were successfully validated utilizing two real benchmark structur
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30

Karaagacli, Taylan. "Determination Of Dynamically Equivalent Fe Models Of Aircraft Structures By Using Modal Test Data." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612522/index.pdf.

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Reliable flutter analysis of aircraft structures is a major requirement to determine safe flight envelops. Dynamically equivalent finite element model of an aircraft structure correlating well with experimental modal is a major requirement for a reliable flutter analysis. Currently available model updating techniques require enormous time and engineering work to achieve appropriate finite element models of aircraft structures. The method developed within the scope of this thesis work aims to remove important disadvantages of common model updating procedures. In doing this, the method starts wi
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31

Graziano, Maria. "Updating of Finite Element Models using static and dynamic optical strains with application to damage assessment." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

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In the recent years, vibration-based structural damage identification has been subject of significant research in structural engineering. The basic idea of vibration-based methods is that damage induces mechanical properties changes that cause anomalies in the dynamic response of the structure, which measures allow to localize damage and its extension. Vibration measured data, such as frequencies and mode shapes, can be used in the Finite Element Model Updating in order to adjust structural parameters sensible at damage (e.g. Young’s Modulus). The novel aspect of this thesis is the introductio
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32

Hanselowski, Andreas [Verfasser]. "A Fuzzy Arithmetical Approach to Finite Element Model Updating Applied to an Automotive Brake System / Andreas Hanselowski." Aachen : Shaker, 2017. http://d-nb.info/1139583344/34.

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33

Choi, Jiduck. "Investigation of the dynamic behavior of a cable-harnessed structure." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/49114.

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To obtain predictive modeling of a spacecraft, the author investigates the effects of adding cables to a simple structure with the goal of developing an understanding of how cables interacting with a structure. In this research, the author presents predictive and accurate modeling of a cable-harnessed structure by means of the Spectral Element Method (SEM). A double beam model is used to emulate a cable-harnessed structure. SEM modeling can define the location and the number of connections between the two beams in a convenient fashion. The proposed modeling is applied and compared with the con
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34

Nichols, Jonathan Tyler. "Application of Load Updating to a Complex Three Dimensional Frame Structure." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/78274.

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This thesis presents a novel method for the correlation of FEM results to experimental test results known as the "Load updating method." Specifically, the load updating method uses the math model from the FEM and the strains measured from experimental or flight test data as inputs and then predicts the loads in the FEM which would result in strains that would correlate best to the measured strains in the least squared sense. In this research, the load updating method is applied to the analysis of a complex frame structure whose validation is challenging due to the complex nature of its structu
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35

Jayakumar, Vignesh. "Finite Element Model Correlation with Experiment Focusing on Descriptions of Clamped Boundary Condition and Damping." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1592171762884289.

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36

Orlando, Lorenzo. "Finite Element model calibration of a historical railway steel truss bridge by using dynamic monitoring data." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.

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This paper proposes a multidisciplinary approach, combining the terrestrial laser scanner and ambient vibration tests to characterize a historical steel truss bridge in Spain: the Vilagarcia Celosia Bridge. All methods are complemented by advanced numerical simulations and a coarse to fine calibration strategy, based on the Cotter and the non-linear least squares approaches. Results obtained corroborate the robustness of the proposed approach, with a max error in frequencies of 3.6% and an average modal assurance criterion of 0.93.
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37

Miguel, Escudero López José. "Traffic-induced vibrations on a two span composite railway bridge : Comparison of theory and measurements." Thesis, KTH, Bro- och stålbyggnad, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-36360.

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The economic and technologic development experienced by the society in the last decades has caused the demand of a new type of faster and more comfortable transport. This type of demand has been covered by the air transport, the road transport and the railway transport. This situation where the society demands an improvement in her quality of life is the best situation for the birth of the high speed trains. Different studies carried out in the transport field have demonstrated that for distances between four hundred and one thousand of kilometres, the high speed trains provide a lower travell
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38

Moravej, Hans. "Vibration-based probabilistic model updating of civil structures using structural health monitoring techniques." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/203653/1/Hans%20Moravej%20Thesis.pdf.

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Information extracted from monitored data is susceptible to uncertainties and not reliable to be used for structural investigations. Finite element model updating (FEMU) is an accredited framework which aims to improve the accuracy of FEMs of real structures. However, FEMU faces barriers to achieving efficiency and addressing uncertainties. This study aims to develop a probabilistic approach based on Modular Bayesian approach (MBA) to address challenges in the application of FEMU. Moreover, this research proposes an integration between MBA and structural reliability analysis to assess the perf
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39

Wang, Liang. "Innovative damage assessment of steel truss bridges using modal strain energy correlation." Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/53177/1/Liang_Wang_Thesis.pdf.

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As a part of vital infrastructure and transportation network, bridge structures must function safely at all times. Bridges are designed to have a long life span. At any point in time, however, some bridges are aged. The ageing of bridge structures, given the rapidly growing demand of heavy and fast inter-city passages and continuous increase of freight transportation, would require diligence on bridge owners to ensure that the infrastructure is healthy at reasonable cost. In recent decades, a new technique, structural health monitoring (SHM), has emerged to meet this challenge. In this new eng
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Monballiu, Franck, and Wouter Schils. "The effect of increasing train lengths on the fatigue lifespan of a bridge." Thesis, KTH, Bro- och stålbyggnad, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-187868.

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More and more pressure is exerted on railway infrastructure due to an increasing transportation demand and population density. Instead of expanding the net, a possible solution could lie in the enlargement of the capacity by operating longer trains rather than more short ones. However, close attention has to be paid to the behaviour and the lifetime of the infrastructure under these changed loads. In special bridges are delicate aspects in this matter. In the current thesis the simply supported Banafjäl bridge located on the Bothnia Line in the North of Sweden is studied more in detail with re
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41

Phillips, Peter Louis. "Integrated Multiaxial Experimentation and Constitutive Modeling." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1492598070791388.

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42

Smith, Chandler B. "Sparsity Constrained Inverse Problems - Application to Vibration-based Structural Health Monitoring." ScholarWorks @ UVM, 2019. https://scholarworks.uvm.edu/graddis/1143.

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Vibration-based structural health monitoring (SHM) seeks to detect, quantify, locate, and prognosticate damage by processing vibration signals measured while the structure is operational. The basic premise of vibration-based SHM is that damage will affect the stiffness, mass or energy dissipation properties of the structure and in turn alter its measured dynamic characteristics. In order to make SHM a practical technology it is necessary to perform damage assessment using only a minimum number of permanently installed sensors. Deducing damage at unmeasured regions of the structural domain requ
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43

Fodor, Ján. "Určování mechanických charakteristik materiálů vícevrstvých struktur s využitím metody zvukové rezonance a modální MKP analýzy." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318138.

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Thesis deals with determination of layerwise mechanical properties of composite ceramics by indirect method, namely Youngs modulus. Based on literature review, it was found that a method to determine elastic properties of one or more components of multi layered composites based on experimental modal analysis and finite element modal analysis, or analytical approach exists. Method based on FE modal analysis was applied to ceramic laminate, where it was attempt to determine youngs modulus of one component. Beyond that, it was attempt to determine Youngs moduli of both components using first two
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44

Salami, Pargoo Navid. "Modeling and calibration of a High Speed Train Railway Bridge based on in-field vibration data." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Today, high-speed trains railway bridges are monitored and analyzed more stringently and detailed to guarantee the reliability and safety of structure. The increase in speed and loads of trains can impose excessive acceleration and displacement or cause resonance in bridge superstructure, which endangers both the integrity of bridge structure and the safety of passengers using the bridge. The thesis presents a calibration procedure for a high-fidelity finite element model of a railway bridge to identify the unknown physical parameters using operational modal data. The detailed 3D modelling c
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45

Zolghadri, Navid. "Short and Long-Term Structural Health Monitoring of Highway Bridges." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/5626.

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Structural Health Monitoring (SHM) is a promising tool for condition assessment of bridge structures. SHM of bridges can be performed for different purposes in long or short-term. A few aspects of short- and long-term monitoring of highway bridges are addressed in this research. Without quantifying environmental effects, applying vibration-based damage detection techniques may result in false damage identification. As part of a long-term monitoring project, the effect of temperature on vibrational characteristics of two continuously monitored bridges are studied. Natural frequencies of the str
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46

Karavelić, Emir. "Stochastic Galerkin finite element method in application to identification problems for failure models parameters in heterogeneous materials." Thesis, Compiègne, 2019. http://www.theses.fr/2019COMP2501.

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Cette thèse traite de rupture localisée de structures construites en matériau composite hétérogène, comme le béton, à deux échelles différentes. Ces deux échelles sont connectées par le biais de la mise à l'échelle stochastique, où toute information obtenue à l'échelle méso est utilisée comme connaissance préalable à l'échelle macro. À l'échelle méso, le modèle de réseau est utilisé pour représenter la structure multiphasique du béton, à savoir le ciment et les granulats. L'élément de poutre représenté par une poutre Timoshenko 3D intégrée avec de fortes discontinuités assure un maillage compl
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47

Lindemann, Sylvester. "Model updating an einem biegeelastischen Rotor." Kassel : Kassel Univ. Press, 2009. http://d-nb.info/994839081/34.

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48

Lindemann, Sylvester. "Model updating an einem biegeelastischen Rotor." Kassel Kassel Univ. Press, 2008. http://d-nb.info/994322720/04.

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49

Friswell, Michael I. "Updating finite element models using measured vibration data." Thesis, Aston University, 1990. http://publications.aston.ac.uk/11893/.

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The modelling of mechanical structures using finite element analysis has become an indispensable stage in the design of new components and products. Once the theoretical design has been optimised a prototype may be constructed and tested. What can the engineer do if the measured and theoretically predicted vibration characteristics of the structure are significantly different? This thesis considers the problems of changing the parameters of the finite element model to improve the correlation between a physical structure and its mathematical model. Two new methods are introduced to perform the
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David, Christoph. "Identification de paramètres mécaniques de matériaux composites à partir de corrélation d’images numériques multi-échelles." Thesis, Ecole nationale des Mines d'Albi-Carmaux, 2014. http://www.theses.fr/2014EMAC0012/document.

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Abstract:
L’amélioration du caractère prédictif des simulations numériques requiert une meilleure maîtrise des modèles constitutifs. Des procédures d’identification exploitant des mesures de champs ont été développées afin de valider les modèles et d’identifier un jeu de paramètres constitutifs à partir d’un nombre réduit d’essais hétérogènes. Bien évidemment, les résultats de telles procédures dépendent grandement des incertitudes des mesures. Dans cette thèse, une stratégie d’identification de paramètres constitutifs à partir de mesures de champs par corrélation d’images numériques éléments finis (CIN
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