Relevant bibliographies by topics / Volumetric deformation

Academic literature on the topic 'Volumetric deformation'

Author: Grafiati
Published: 19 August 2021
Last updated: 11 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Volumetric deformation.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Journal articles on the topic "Volumetric deformation":

1

Bakushev, S. V. "DIFFERENTIAL EQUATIONS OF EQUILIBRIUM OF ELASTIC PERFECTLY PLASTIC CONTINUOUS MEDIUM FOR PLANE DEFORMATION IN CYLINDRICAL COORDINATES AT BILINEAR APPROXIMATION OF THE CLOSING EQUATIONS." STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS, no. 1 (February 25, 2021): 18–33. http://dx.doi.org/10.37538/0039-2383.2021.1.18.33.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Abstract. The article considers the construction of differential equations of equilibrium in displacements for plane deformation of elastic perfectly plastic regarding shear deformations continuous medium and nonlinearly elastic continuous medium with respect to volumetric deformations with bilinear approximation of the closing equations, both regarding and regardless geometrical nonlinearity in a cylindrical coordinate system. Nonlinear diagrams of volumetric and shear deformation are approximated by bilinear functions. Proceeding from the assumption of independence, generally speaking, of volume and shear deformation from each other, five main cases of physical dependencies are considered, depending on the relative position of the break points of bilinear diagrams of volume and shear deformation. The construction of bilinear physical dependencies is based on the calculation of the secant moduli of volumetric and shear deformation. In this case, in the first section of the diagrams, the secant modulus of both volumetric and shear deformation is constant, while in the second section of the diagrams, the secant modulus of volumetric deformation is a function of volumetric deformation, and the secant shear modulus is a function of the intensity of shear deformations. Substituting the corresponding bilinear physical relations into the differential equations of equilibrium of a continuous medium, written both regardless and regarding geometrical nonlinearity, the resolving differential equations of equilibrium in displacements for plane deformation in a cylindrical coordinate system are received. The received differential equations of equilibrium in displacements in cylindrical coordinates can be applied in determining the stress-strain state of elastic perfectly plastic with respect to shear deformations continuous medium and nonlinearly elastic with respect to volumetric deformations continuous medium under conditions of plane deformation, both regarding and regardless geometrical nonlinearity, physical relations for which are approximated by bilinear functions.
2

Bakushev, Sergey V. "Differential equations of equilibrium of continuous medium for plane one-dimensional deformation at closing equations approximation by biquadratic functions." Structural Mechanics of Engineering Constructions and Buildings 16, no. 6 (December 15, 2020): 481–92. http://dx.doi.org/10.22363/1815-5235-2020-16-6-481-492.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Problems of differential equations construction of equilibrium of a geometrically and physically nonlinear continuous medium under conditions of one-dimensional plane deformation are considered, when the diagrams of volumetric and shear deformation are approximated by quadratic functions. The construction of physical dependencies is based on calculating the secant moduli of volumetric and shear deformation. When approximating the graphs of the volumetric and shear deformation diagrams using two segments of parabolas, the secant shear modulus in the first segment is a linear function of the intensity of shear deformations, the secant modulus of volumetric expansion - contraction is a linear function of the first invariant of the strain tensor. In the second section of the diagrams of both volumetric and shear deformation, the secant shear modulus is a fractional (rational) function of the shear strain intensity, the secant modulus of volumetric expansion - compression is a fractional (rational) function of the first invariant of the strain tensor. Based on the assumption of independence, generally speaking, from each other of the volumetric and shear deformation diagrams, six main cases of physical dependences are considered, depending on the relative position of the break points of the graphs of the diagrams volumetric and shear deformation, each approximated by two parabolas. The differential equations of equilibrium in displacements constructed in the article can be applied in determining the stressed and deformed state of a continuous medium under conditions of one-dimensional plane deformation, the closing equations of physical relations for which, constructed on the basis of experimental data, are approximated by biquadratic functions.
3

Gavini, Vikram. "Role of the defect core in energetics of vacancies." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 465, no. 2110 (August 5, 2009): 3239–66. http://dx.doi.org/10.1098/rspa.2009.0136.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Electronic structure calculations at macroscopic scales are employed to investigate the crucial role of a defect core in the energetics of vacancies in aluminium. We find that vacancy core energy is significantly influenced by the state of deformation at the vacancy core, especially volumetric strains. Insights from the core electronic structure and computed displacement fields show that this dependence on volumetric strains is closely related to the changing nature of the core structure under volumetric deformations. These results are in sharp contrast to mechanics descriptions based on elastic interactions that often consider defect core energies as an inconsequential constant. Calculations suggest that the variation in core energies with changing macroscopic deformations is quantitatively more significant than the corresponding variation in relaxation energies associated with elastic fields. Upon studying the influence of various macroscopic deformations, which include volumetric, uniaxial, biaxial and shear deformations, on the formation energies of vacancies, we show that volumetric deformations play a dominant role in governing the energetics of these defects. Further, by plotting formation energies of vacancies and di-vacancies against the volumetric strain corresponding to any macroscopic deformation, we find that all variations in the formation energies collapse on to a universal curve. This suggests a universal role of volumetric strains in the energetics of vacancies. Implications of these results in the context of dynamic failure in metals through shock-induced spalling are analysed.
4

Liu, M. D., and J. P. Carter. "Volumetric Deformation of Natural Clays." International Journal of Geomechanics 3, no. 2 (December 2003): 236–52. http://dx.doi.org/10.1061/(asce)1532-3641(2003)3:2(236).

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Chu, Bin-Lin, Yeun-Wen Jou, and Meng-Chia Weng. "A constitutive model for gravelly soils considering shear-induced volumetric deformation." Canadian Geotechnical Journal 47, no. 6 (June 2010): 662–73. http://dx.doi.org/10.1139/t09-135.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
This study elucidates the deformational behavior of gravelly soils by analyzing how hydrostatic pressure and pure shearing affect deformational behavior. A series of drained, triaxial compression tests have been performed using large specimens made of gravelly soils, where the grain-size distribution curve was based on the field condition. The volumetric and shear deformations of gravelly soils have been determined by performing experiments with controlled stress paths — hydrostatic pressure was applied first followed by pure shearing. A simple and innovative constitutive model is also proposed. The proposed model is characterized by the following features of gravelly soils: (i) significant shear-induced volumetric deformation prior to failure, (ii) modulus stiffening under hydrostatic loading and degradation under shearing, and (iii) stress-induced anisotropy. In the proposed model, deformational moduli K and G vary according to the stress state. The stiffening and degradation of these moduli result in diverse deformational behavior of gravelly soils. In addition, an anisotropic factor, β, is introduced to represent stress-induced anisotropy. Moreover, the proposed model only requires eight material parameters; each of which can be obtained easily from experiments.
6

Rojas, Eduardo, Jaime Horta, and María de la Luz Pérez-Rea. "Modeling the soil-water retention curves for highly deforming soils." MATEC Web of Conferences 337 (2021): 02003. http://dx.doi.org/10.1051/matecconf/202133702003.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
A porous-solid model based on the grain and pore size distributions of the soil is coupled with a mechanical model to simulate the soil-water retention curves while the material is deforming. During the determination of the main drying curve, the soil is subjected to high suctions which induce important volumetric deformations. These volumetric deformations modify the pore size distribution of the sample affecting both the drying and the wetting retention curves. Although, most deformation occurs at drying, the drying curve is only slightly affected by soil deformation. In contrast, the wetting curve shows important shifting when volume change is considered.
7

Liao, Wentao, Renjie Chen, Yuchen Hua, Ligang Liu, and Ofir Weber. "Real-time locally injective volumetric deformation." ACM Transactions on Graphics 40, no. 4 (August 2021): 1–16. http://dx.doi.org/10.1145/3476576.3476628.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Liao, Wentao, Renjie Chen, Yuchen Hua, Ligang Liu, and Ofir Weber. "Real-time locally injective volumetric deformation." ACM Transactions on Graphics 40, no. 4 (August 2021): 1–16. http://dx.doi.org/10.1145/3450626.3459794.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Shikula, E. "NONLENEAR DEFORMATION OF GRANULAR COMPOSITES." Collection of scientific works of the State University of Infrastructure and Technologies series "Transport Systems and Technologies", no. 36 (December 30, 2020): 121–31. http://dx.doi.org/10.32703/2617-9040-2020-36-13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The model of nonlinear deformation of a layered material with physically nonlinear layers is proposed. The laminate is considered a two-component material with random layers. The basis is the stochastic differential equations of the physically nonlinear theory of elasticity L.P. Khoroshun. The solution to the problem of the stress-strain state and effective properties of the composite material is constructed by the averaging method. An algorithm for determining the effective deformable properties of a layered material with physically nonlinear layers has been developed. The solution of nonlinear equations taking into account their physical nonlinearity is constructed by an iterative method. The law of the relationship between macrostresses and macrostrains in a layered material and the dependence of average strains and stresses in its layers on macrostrains has been established. Curves of material deformation are plotted for different values of the volumetric content of its filler. The dependence of the effective deformative properties of the laminated material on the volumetric content of the filler has been studied. The effect of nonlinearity of layers on the deformation of a layered composite material is investigated. It was found that the nonlinearity of the layers significantly affects the effective deformative properties and the stress-strain state of laminated materials.
10

Liu, M. D., and J. P. Carter. "On the volumetric deformation of reconstituted soils." International Journal for Numerical and Analytical Methods in Geomechanics 24, no. 2 (February 2000): 101–33. http://dx.doi.org/10.1002/(sici)1096-9853(200002)24:2<101::aid-nag55>3.0.co;2-o.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources
You might also be interested in the extended bibliographies on the topic 'Volumetric deformation' for particular source types:
Journal articles Dissertations / Theses

Dissertations / Theses on the topic "Volumetric deformation":

1

Willcocks, Christopher George. "Sparse volumetric deformation." Thesis, Durham University, 2013. http://etheses.dur.ac.uk/8471/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Volume rendering is becoming increasingly popular as applications require realistic solid shape representations with seamless texture mapping and accurate filtering. However rendering sparse volumetric data is difficult because of the limited memory and processing capabilities of current hardware. To address these limitations, the volumetric information can be stored at progressive resolutions in the hierarchical branches of a tree structure, and sampled according to the region of interest. This means that only a partial region of the full dataset is processed, and therefore massive volumetric scenes can be rendered efficiently. The problem with this approach is that it currently only supports static scenes. This is because it is difficult to accurately deform massive amounts of volume elements and reconstruct the scene hierarchy in real-time. Another problem is that deformation operations distort the shape where more than one volume element tries to occupy the same location, and similarly gaps occur where deformation stretches the elements further than one discrete location. It is also challenging to efficiently support sophisticated deformations at hierarchical resolutions, such as character skinning or physically based animation. These types of deformation are expensive and require a control structure (for example a cage or skeleton) that maps to a set of features to accelerate the deformation process. The problems with this technique are that the varying volume hierarchy reflects different feature sizes, and manipulating the features at the original resolution is too expensive; therefore the control structure must also hierarchically capture features according to the varying volumetric resolution. This thesis investigates the area of deforming and rendering massive amounts of dynamic volumetric content. The proposed approach efficiently deforms hierarchical volume elements without introducing artifacts and supports both ray casting and rasterization renderers. This enables light transport to be modeled both accurately and efficiently with applications in the fields of real-time rendering and computer animation. Sophisticated volumetric deformation, including character animation, is also supported in real-time. This is achieved by automatically generating a control skeleton which is mapped to the varying feature resolution of the volume hierarchy. The output deformations are demonstrated in massive dynamic volumetric scenes.
2

Chen, Pei. "Volumetric reconstruction and real-time deformation modeling of biomedical images." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 6.09 Mb., p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3220796.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Thesis (Ph.D.)--University of Delaware, 2006.
Principal faculty advisors: Kenneth E. Barner, Dept. of Electrical and Computer Engineering; and Karl V. Steiner, Delaware Biotechnology Institute. Includes bibliographical references.
3

Wang, Shuang. "A volumetric mesh-free deformation method for surgical simulation in virtual environments." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 78 p, 2009. http://proquest.umi.com/pqdweb?did=1885755951&sid=3&Fmt=2&clientId=8331&RQT=309&VName=PQD.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Tei, Alida 1978. "Multi-modality image fusion by real-time tracking of volumetric brain deformation during Image Guided Neurosurgery." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/87820.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Mokni, Nadia. "Deformation and flow driven by osmotic processes in porous materials." Doctoral thesis, Universitat Politècnica de Catalunya, 2011. http://hdl.handle.net/10803/6279.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
En el caso del almacenamiento de los residuos radioactivos los flujos osmóticos pueden ser relevantes y requieren un análisis en detalle. El residuo nuclear bituminizado (BW) será almacenado mediante contenedores en cavidades excavadas en la Boom Clay, que es una arcilla marina que presenta propiedades favorables para limitar y retrasar la migración de los contaminantes radioactivos. La interacción entre los dos materiales es un proceso acoplado químico-hidro-mecánico y depende de la respuesta hidromecánica de la Boom Clay y del BW. En condiciones de almacenamiento, el contacto del BW, que contienen cantidades importantes de NaNO3, con el agua subterránea induce la hidratación por gradientes osmóticos y el consiguiente hinchamiento, además de la difusión de la sal disuelta hacia la Boom Clay. Se pueden distinguir dos tipos de afecciones: la perturbación geomecánica causada por el hinchamiento del BW y el aumento de presión en el BW y cambio de las distribución de tensiones en la roca, y la perturbación físico química por la migración de grandes cantidades de sales. El objetivo de esta tesis es: (i) Mejorar la comprensión de los procesos que controlan la absorción de agua y el consecuente hinchamiento del BW que contengan sales (NaNO3), y (ii) Investigar los posibles efectos de la concentración de fluidos de los poros sobre el hinchamiento, la compresibilidad y comportamiento de corte de la Boom Clay. En primer lugar, se ha desarrollado una formulación para el análisis de la deformación inducida por la disolución de sales en medio poroso con contacto con agua. Las ecuaciones planteadas incluyen los flujos acoplados de agua y soluto. Se presenta también un trabajo teórico que ayuda a la comprensión del comportamiento mecánico del BW. Se considera este material como una mezcla de bitumen y cristales de NaNO3. Se ha desarrollado un modelo elasto-viscoplástico que describe el comportamiento de fluencia del BW considerando el comportamiento de fluencia de sus constituyentes. El modelo constitutivo elasto-viscoplástico ha sido implementado en el programa CODE_BRIGHT. Los resultados se han comparado con observaciones experimentales. Se ha estudiado el comportamiento a largo plazo del BW en contacto con agua al simular ensayos de hinchamiento por absorción de agua bajo condiciones confinadas. El análisis numérico ha demostrado ser capaz de proporcionar una representación satisfactoria de los principales patrones observados en su comportamiento. En lo que respecta al segundo objetivo de la tesis, se ha propuesto una formulación para el análisis de las deformaciones inducidas por procesos osmóticos en un medio poroso de doble estructura. Esta formulación distingue dentro del material un nivel micro-estructural y otro macro-estructural con cambios químicos que tienen un efecto significativo en la micro-estructura. Se han obtenido las ecuaciones básicas que describen los flujos acoplados de agua y solutos y el transporte de sus componentes a través de los macroporos así como las ecuaciones de balance de masa para agua y soluto en los macroporos y microporos. La formulación propuesta ha sido aplicada particularmente para analizar cualitativamente el efecto de la succión osmótica sobre el hinchamiento de los suelos arcillosos. Se han analizado los efectos a corto y largo plazo. Se ha investigado también la influencia del aumento de la concentración del fluido en los poros sobre las propiedades geotécnicas y el comportamiento de la Boom Clay no saturada. Se ha llevado a cabo un programa sistemático de investigación experimental, con control de succión osmótica y matricial, con el fin de investigar el efecto del incremento de la concentración del fluido de poros sobre la resistencia de corte y el cambio volumétrico bajo condiciones edométricas. Se ha observado, que bajo condiciones parcialmente saturadas, un cambio en la salinidad provoca una disminución en la compresibilidad y en la resistencia de corte del material.
For deep storage of high-level nuclear waste osmotic flows can be significant and so require a careful analysis. In Belgium, The bituminized nuclear waste (BW) named Eurobitum contained in metallic drums will be placed inside a tunnel or a shaft excavated in the Boom Clay, which is 100 m thick marine clay presenting favourable properties to limit and delay the migration of the leached radionuclides over extended periods of time. In Geological disposal conditions, contact of the bituminized radioactive waste which contains high amounts of highly soluble salt (NaNO3) with groundwater will result in water uptake and swelling of the waste and in subsequent diffusion of the dissolved salt through the host clay formation. Basically, two types of disturbance can be distinguished: A geo-mechanical perturbation, caused by the swelling of the waste and the increase of the pressure in and around the waste and a physico-chemical perturbation by the release of large amounts of NaNO3 and other soluble salts. In this context the aim of this thesis is: (i) to improve the understanding of the processes controlling the water uptake and the subsequent swelling of bituminized waste containing soluble salts (NaNO3), and (ii) to investigate of the possible effects of the increase of pore fluid concentration on swelling, compressibility and shear behaviour of Boom Clay. A formulation has been proposed for the analysis of deformation induced by dissolution of salts in porous media in contact with water. The equations include the effect of coupled transport phenomena and the formulation has been included as an extension in the coupled THM program CODE_BRIGHT. A theoretical and experimental work aiming at understanding the mechanical behaviour of the Bituminized Waste has been presented.This material is considered for this purpose as a mixture of bitumen and crystals of NaNO3. An elasto-viscoplastic model has been developed that describes the creep behaviour of BW considering the constituents' creep behaviour. The elasto-viscoplastic constitutive model has been implemented into CODE_BRIGHT. The modelling results have been compared with the experimental data. The impact of osmotic forces on the swelling of the material has been investigated by simulating water uptake swelling tests under confined conditions and comparing the predictions with experimental results. The numerical analysis has proven to be able to furnish a satisfactory representation of the main observed patterns of the behaviour. In regard to the second objective of this thesis, a formulation has been proposed for the analysis of deformations induced by osmotic processes in double structure porous media. The formulation is based on the distinction within the material of a microstructural and a macrostructural levels with chemical changes having a significant effect on the microstructure. A macroscopic description of the system is provided. Then the basic equations describing coupled flows of water and solutes and the transport of its components through macropores and mass balance equations for water and solute in macro and micro pores have been obtained. The proposed formulation has been particularly applied to analyze qualitatively the effect of osmotic suction on swelling of clayey soils. Transient and long term effects have been analyzed. The influence of pore fluid concentration on the geotechnical properties and behavior of Boom Clay under partially saturated conditions has been investigated. A systematic experimental research program involving osmotic suction and matric suction controlled experiments has been carried to investigate the effect of the increase of pore fluid concentration on shear strength and on the volume change behaviour under odometer stress state conditions. It has been observed that under partially saturated conditions a change in salinity causes a decrease in compressibility and shear strength.
6

Augustine, Daniel. "Cardiovascular magnetic resonance deformation imaging by feature tracking for assessment of left and right ventricular structure and function." Thesis, Queen Mary, University of London, 2014. http://qmro.qmul.ac.uk/xmlui/handle/123456789/7872.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Cardiac magnetic resonance (CMR) imaging is the gold standard imaging technique for assessment of ventricular dimensions and function. CMR also allows assessment of ventricular deformation but this requires additional imaging sequences and time consuming post processing which has limited its widespread use. A novel CMR analysis software package, ‘feature tracking’ (Tom Tec, Germany) can measure ventricular deformation directly from cine CMR images. This thesis seeks to further our understanding of the feasibility of feature tracking to assess myocardial deformation and volumetric measures. Chapter 3 validates normal ranges for deformation parameters and compares values against traditional tagging measures. The work identifies global circumferential strain measures as being the most reproducible. In chapters 4 and 5, feature tracking values for left and right ventricular strain are compared with echocardiography derived speckle tracking indices of deformation. For left ventricular (LV) parameters, circumferential and longitudinal strain are most consistent and for the right ventricular (RV) measures, assessment of free wall strain using feature tracking shows promise and with modifications in algorithms is likely to further improve in the future. Chapter 6 assesses the ability of feature tracking to measure diastolic function. The results show that radial diastolic velocities and longitudinal diastolic strain rates can predict diastolic dysfunction (as diagnosed by echocardiography) with acceptable levels of sensitivity and specificity, particularly when used in combination. 11 The use of feature tracking to provide automated measures of ventricular volumes, mass and ejection fraction is assessed in chapter 7. Feature tracking in this context shows acceptable correlation but poor absolute agreement with manual contouring and further adjustments to algorithms is necessary to improve its accuracy. This work offers insights into the use of feature tracking for the assessment of ventricular deformation parameters. It is a technique with advantages over CMR tagging methods and given the speed of post processing has the potential to become the CMR preferred assessment for strain quantification in the future.
7

Viso, Chachayma Jordy Frank, and Alvarez Jhian Franco Torres. "Estudio experimental de la aplicación del cemento con el propósito de mejorar el comportamiento geotécnico de suelos volcánicos del distrito de Omate-Moquegua." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2021. http://hdl.handle.net/10757/657018.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
El propósito de esta investigación es mejorar los parámetros geotécnicos del suelo volcánico granular con la adición de cemento Portland tipo I. Primero, se realiza el ensayo de Granulometría y se clasifico mediante SUCS como una arena con grava pobremente gradada y según AASHTO como A-1-b. Por otro lado, se realizó el ensayo de Proctor y se obtuvo una Densidad Seca Máxima de 1.21 kg/cm2 con un Contenido de Humedad Optimo de 17.8%. Además, los resultados del ensayo de Corte Directo indico un ángulo de fricción 33.5°, una cohesión de 0.0 kg/cm2. El segundo paso fue realizar el ensayo de Proctor a muestras con adiciones de 3%, 5%, 7% y 9% de cemento, los resultados óptimos fueron al 5% de adición. El tercer paso, se realizó el ensayo de Corte Directo las mezclas de 3%, 5% y 7% a 7 y 14 días de curado, los resultados indicaron un incremento de 14.6% a 79.1% en el ángulo de fricción en comparación del suelo natural y un incremento de 25.8% a 161.5 % en la resistencia al corte. También, se muestra el comportamiento de la deformación volumétrica, presentando una mayor contracción cuando se aplica un esfuerzo normal de 1 kg/cm2 y una mayor expansión cuando se aplica un esfuerzo normal de 4 kg/cm2. Finalmente, los parámetros del ensayo de Proctor indican a la mezcla con 5% la más óptima y los parámetros del ensayo de Corte Directo indican mejores resultados a mayor contenido de cemento y mayores días de curado.
The purpose of this research is to improve the geotechnical parameters of the granular volcanic soil with the addition of Portland cement type I. First, the Granulometry test is carried out and classified by SUCS as a poorly graded sand with gravel and according to AASHTO as A-1-b. On the other hand, the Proctor test was carried out and a Maximum Dry Density of 1.21 kg/cm2 was obtained with an Optimal Moisture Content of 17.8%. In addition, the results of the Direct Shear test indicated a 33.5° friction angle, a cohesion of 0.0 kg/cm2. The second step was the Proctor test on samples with additions of 3%, 5%, 7% and 9% of cement, the optimal results were at a 5% addition. The third step, the Direct Shear test was carried out, the mixtures of 3%, 5% and 7% at 7 and 14 days of curing, the results indicated an increase of 14.6% to 79.1% in the friction angle compared to the soil natural and an increase from 25.8% to 161.5% in cut resistance. Also, the behavior of the volumetric deformation is shown, presenting a greater contraction when a normal stress of 1 kg/cm2 is applied and a greater expansion when a normal stress of 4 kg/cm2 is applied. Finally, the parameters of the Proctor test indicate the most optimal mixture with 5% and the parameters of the Direct Shear test indicate better results at higher cement content and longer curing days.
Tesis
8

Doll, Stefan [Verfasser]. "Zur numerischen Behandlung großer elasto-viskoplastischer Deformationen bei isochor- volumetrisch entkoppeltem Stoffverhalten / Stefan Doll." Karlsruhe : KIT-Bibliothek, 1998. http://d-nb.info/1014058309/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Gajári, György. "Modellierung bleibender Verformungen des Asphalts mit einem hypoplastischen Stoffgesetz der Bodenmechanik." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-103930.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Die Arbeit dient der numerischen Simulation der Spurbildung in Asphaltstraßen und der Herstellung widerstandsfähiger Asphaltmischungen. Zur Modellbildung musste die physikalisch-mechanische Ursache der bleibenden Verformungen bei hohen Temperaturen geklärt werden. Im Gegensatz zu bisher existierenden Stoffmodellen ist in dieser Arbeit das Verhalten teilgesättigter granulerer Stoffe unter zyklischer Belastung als die Grundlage der Untersuchung gewählt worden. Diese zeigen bei entsprechend hoher Sättigung der Hohlräume des mineralischen Korngerüsts unter zyklischer Scherbeanspruchung und bei gleichzeitigem Druck das Phänomen der „zyklischen Mobilität”. Die Erklärung dafür ist die Verdichtungsneigung des Korngerüstes und die Inkompressibilität des Porenfluids, wodurch Porenüberdrücke entstehen. Zyklische Mobilität bedeutet den Abfall der Steifigkeit. Durch die Zunahme der Dehnungsamplituden infolge zyklischer Scherbelastung und der Irreversibilität des granularen Materials verursacht dieses Verhalten die erhöhte Spurbildungsneigung. Die richtige Modellwahl konnte durch systematische experimentelle Ergebnisse belegt werden. Die monotonen triaxialen Kompressionsversuche beweisen die Barotropie und Pyknotropie der Steifigkeit, der Festigkeit und der Dilatanz des mineralischen Korngerüstes. Durch Kompression unter zyklischem Scheren wird die Existenz eines optimalen Bitumengehalts bewiesen, bei welchem die höchste Dichte des Kornegerüstes erreicht werden kann. Bei Mischungen über dem optimalen Bindemittelgehalt wird der Porenfluidüberdruck durch Druckmessungen im Mörtel nachgewiesen. Für den Strassenbauasphalt ist erstmalig zur numerischen Simulation das aus Karlsruhe stammende, mit der „intergranularen Dehnung” erweiterte hypoplastische Stoffgesetz herangezogen worden. Den Schwerpunkt der Arbeit bildet die Bestimmung der hypoplastischen Stoffparameter und die Überprüfung des gewählten Stoffgesetzes durch Nachrechnung von zyklischen Einfachscherversuchen und Triaxialversuchen. In einer selbstentwickelten Torsionszelle wird durch unmittelbare Messung gezeigt, dass der Bitumengehalt über dem Optimum die Schubsteifigkeit verringert. Die Triaxialversuche beweisen die Möglichkeit des Eintretens der zyklischen Mobilität und dadurch die extreme Neigung zur Spurbildung. Diese Messungen beweisen die praktische Bedeutung des optimalen Bitumengehaltes. Das positive Ergebnis der Überprüfung des genanntes Stoffgesetzes liefert die theoretische Unterstützung der experimentellen Ergebnisse. Diese können als Grundlage einer neuen Perspektive in der rechnerischen Prognose sowie beim Entwurf und bei der Herstellung von Asphaltmischungen dienen.
10

Laubrock, Kerstin [Verfasser]. "Bildqualität und Funktionsanalyse von Real-Time-Herz-MRT-Untersuchungen bei 3,0 T: Volumetrie mit Vergleich zweier Softwareprototypen und Analyse der myokardialen Deformation im Sinusrhythmus und bei Vorhofflimmern / Kerstin Laubrock." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://d-nb.info/1222265095/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Volumetric deformation":

1

Aguilar-Torres, Río. Assessment of left atrial function. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199599639.003.0010.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The left atrium (LA) plays an important role in cardiovascular performance, not only as a mechanical contributor, elastic reservoir, and a primer for left ventricular filling, but also as a participant in the regulation of intravascular volume through the production of atrial natriuretic peptide.Although LA diameter in the parasternal long-axis view has been routinely employed, LA volume is a more robust marker for predicting events than LA areas or diameters. The assessment of LA performance based on two-dimensional volumetrics, Doppler evaluation of mitral, pulmonary vein flow, and annular tissue Doppler, as well as deformation imaging techniques, may provide incremental information for prognostic purposes and for the evaluation of severity and duration of conditions associated with LA overload.The aims of this chapter are to explain the basics of LA function, and to describe the role of Doppler echocardiography techniques, and how to implement them, for the non-invasive evaluation of LA in clinical practice.

Book chapters on the topic "Volumetric deformation":

1

Michael A., Michael A., Jean-José Orteu, and Hubert W. Schreier. "Volumetric Digital Image Correlation (VDIC)." In Image Correlation for Shape, Motion and Deformation Measurements, 1–16. Boston, MA: Springer US, 2009. http://dx.doi.org/10.1007/978-0-387-78747-3_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Berlinger, Kajetan, Michael Roth, Jens Fisseler, Otto Sauer, Achim Schweikard, and Lucia Vences. "Volumetric Deformation Model for Motion Compensation in Radiotherapy." In Medical Image Computing and Computer-Assisted Intervention – MICCAI 2004, 925–32. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-30136-3_112.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Saupin, Guillaume, Christian Duriez, and Laurent Grisoni. "Embedded Multigrid Approach for Real-Time Volumetric Deformation." In Advances in Visual Computing, 149–59. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-76858-6_15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Mori, Kensaku, Hiroki Oka, Takayuki Kitasaka, Yasuhito Suenaga, and Jun-ichiro Toriwaki. "Virtual Unfolding of the Stomach Based on Volumetric Image Deformation." In Medical Image Computing and Computer-Assisted Intervention – MICCAI 2004, 389–96. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-30136-3_48.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kitasaka, Takayuki, Kensaku Mori, Yuichiro Hayashi, Yasuhito Suenaga, Makoto Hashizume, and Jun-ichiro Toriwaki. "Virtual Pneumoperitoneum for Generating Virtual Laparoscopic Views Based on Volumetric Deformation." In Medical Image Computing and Computer-Assisted Intervention – MICCAI 2004, 559–67. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-30136-3_69.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Cho, Jaehwan, and Jinah Park. "Hybrid Elastic Model for Volumetric Deformation in Multi-modal Virtual Reality Simulation." In IFMBE Proceedings, 1528–31. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03882-2_405.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Paloc, Celine, Fernando Bello, Richard I. Kitney, and Ara Darzi. "Online Multiresolution Volumetric Mass Spring Model for Real Time Soft Tissue Deformation." In Medical Image Computing and Computer-Assisted Intervention — MICCAI 2002, 219–26. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-45787-9_28.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Ventini, Roberta, Alessandro Flora, Stefania Lirer, and Claudio Mancuso. "On the Effect of Grading and Degree of Saturation on Rockfill Volumetric Deformation." In Lecture Notes in Civil Engineering, 462–71. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-21359-6_49.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Hata, Nobuhiko, Arya Nabavi, Simon Warfield, William Wells, Ron Kikinis, and Ferenc A. Jolesz. "A Volumetric Optical Flow Method for Measurement of Brain Deformation from Intraoperative Magnetic Resonance Images." In Medical Image Computing and Computer-Assisted Intervention – MICCAI’99, 928–35. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/10704282_101.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Baharom, B., and S. E. Stallebrass. "A Constitutive Model Combining the Microscopic and Macroscopic Behaviour of Sands in Shear and Volumetric Deformation." In Application of Numerical Methods to Geotechnical Problems, 263–72. Vienna: Springer Vienna, 1998. http://dx.doi.org/10.1007/978-3-7091-2512-0_25.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Volumetric deformation":

1

Doba, Kentaro, Kenta Ogawa, Kenji Murakami, and Hiroshi Masuda. "Interactive deformation using volumetric constraints." In ACM SIGGRAPH 2008 posters. New York, New York, USA: ACM Press, 2008. http://dx.doi.org/10.1145/1400885.1401000.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Budd, C., and A. Hilton. "Skeleton Driven Laplacian Volumetric Deformation." In 2009 Conference for Visual Media Production (CVMP). IEEE, 2009. http://dx.doi.org/10.1109/cvmp.2009.27.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Rezk-Salama, C., M. Scheuering, G. Soza, and G. Greiner. "Fast volumetric deformation on general purpose hardware." In the ACM SIGGRAPH/EUROGRAPHICS workshop. New York, New York, USA: ACM Press, 2001. http://dx.doi.org/10.1145/383507.383517.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Holloway, Michelle, Tao Ju, and Cindy Grimm. "Contour guided surface deformation for volumetric segmentation." In SIGGRAPH '15: Special Interest Group on Computer Graphics and Interactive Techniques Conference. New York, NY, USA: ACM, 2015. http://dx.doi.org/10.1145/2787626.2792638.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Li, Jinshun, and Yanyu Hu. "Nose Surgery Simulation Based on Volumetric Laplacian Deformation." In 2011 IEEE 10th International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom). IEEE, 2011. http://dx.doi.org/10.1109/trustcom.2011.204.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Zhou, Kun, Jin Huang, John Snyder, Xinguo Liu, Hujun Bao, Baining Guo, and Heung-Yeung Shum. "Large mesh deformation using the volumetric graph Laplacian." In ACM SIGGRAPH 2005 Papers. New York, New York, USA: ACM Press, 2005. http://dx.doi.org/10.1145/1186822.1073219.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Loch, Ben, Per Karefelt, Rob Richardson, Alex Rothwell, and Andy Hayes. "Volumetric dense mesh deformation in the Tengu Monk fight." In ACM SIGGRAPH 2014 Talks. New York, New York, USA: ACM Press, 2014. http://dx.doi.org/10.1145/2614106.2614185.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Berranen, Y., M. Hayashibe, B. Gilles, and D. Guiraud. "3D volumetric muscle modeling for real-time deformation analysis with FEM." In 2012 34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2012. http://dx.doi.org/10.1109/embc.2012.6347083.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Weinlich, Andreas, Michel Batz, Peter Amon, Andreas Hutter, and Andre Kaup. "Volumetric deformation compensation in CUDA for coding of dynamic cardiac images." In 2013 Picture Coding Symposium (PCS). IEEE, 2013. http://dx.doi.org/10.1109/pcs.2013.6737715.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Truong, TrungDung, Takayuki Kitasaka, Kensaku Mori, and Yasuhito Suenaga. "Fast and accurate tract unfolding based on stable volumetric image deformation." In Medical Imaging, edited by Armando Manduca and Amir A. Amini. SPIE, 2006. http://dx.doi.org/10.1117/12.652927.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Volumetric deformation":

1

Yan, Yujie, and Jerome F. Hajjar. Automated Damage Assessment and Structural Modeling of Bridges with Visual Sensing Technology. Northeastern University, May 2021. http://dx.doi.org/10.17760/d20410114.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Recent advances in visual sensing technology have gained much attention in the field of bridge inspection and management. Coupled with advanced robotic systems, state-of-the-art visual sensors can be used to obtain accurate documentation of bridges without the need for any special equipment or traffic closure. The captured visual sensor data can be post-processed to gather meaningful information for the bridge structures and hence to support bridge inspection and management. However, state-of-the-practice data postprocessing approaches require substantial manual operations, which can be time-consuming and expensive. The main objective of this study is to develop methods and algorithms to automate the post-processing of the visual sensor data towards the extraction of three main categories of information: 1) object information such as object identity, shapes, and spatial relationships - a novel heuristic-based method is proposed to automate the detection and recognition of main structural elements of steel girder bridges in both terrestrial and unmanned aerial vehicle (UAV)-based laser scanning data. Domain knowledge on the geometric and topological constraints of the structural elements is modeled and utilized as heuristics to guide the search as well as to reject erroneous detection results. 2) structural damage information, such as damage locations and quantities - to support the assessment of damage associated with small deformations, an advanced crack assessment method is proposed to enable automated detection and quantification of concrete cracks in critical structural elements based on UAV-based visual sensor data. In terms of damage associated with large deformations, based on the surface normal-based method proposed in Guldur et al. (2014), a new algorithm is developed to enhance the robustness of damage assessment for structural elements with curved surfaces. 3) three-dimensional volumetric models - the object information extracted from the laser scanning data is exploited to create a complete geometric representation for each structural element. In addition, mesh generation algorithms are developed to automatically convert the geometric representations into conformal all-hexahedron finite element meshes, which can be finally assembled to create a finite element model of the entire bridge. To validate the effectiveness of the developed methods and algorithms, several field data collections have been conducted to collect both the visual sensor data and the physical measurements from experimental specimens and in-service bridges. The data were collected using both terrestrial laser scanners combined with images, and laser scanners and cameras mounted to unmanned aerial vehicles.

To the bibliography