Academic literature on the topic 'Rheologie {Physik'

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 'Rheologie {Physik.'

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.

Journal articles on the topic "Rheologie {Physik"

1

Oldag, Frank. "Rheologie im Emsland / Rheology in Emsland." Applied Rheology 2, no. 2 (June 1, 1992): 91–94. http://dx.doi.org/10.2478/arh-1992-020207.

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

Makhloufi, R., and M. Kröger. "Rheologie und Struktur / Rheology and Structure." Applied Rheology 6, no. 6 (December 1, 1996): 278–80. http://dx.doi.org/10.2478/arh-1996-060611.

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

Dewald, Erlwine. "Die Rheologin / The female rheologist." Applied Rheology 2, no. 2 (June 1, 1992): 138–39. http://dx.doi.org/10.2478/arh-1992-020217.

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

Dewald, Erlwine. "Rochester 91: Reine Rheologie / Rochester 91: Rheology revisited." Applied Rheology 1, no. 4 (December 1, 1991): 248–53. http://dx.doi.org/10.2478/arh-1991-010413.

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

Oldag, Frank. "Rheologie klingt wie Theologie / Rheology sounds like theology." Applied Rheology 1, no. 4 (December 1, 1991): 266–67. http://dx.doi.org/10.2478/arh-1991-010417.

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

Lüben, Heinz E. "Rheologie auf dem Vormarsch / Rheology on the move." Applied Rheology 2, no. 1 (March 1, 1992): 56–59. http://dx.doi.org/10.2478/arh-1992-020112.

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

Dewald, Erlwine. "Mehr Rheologie indie Tribologie / More Rheology in Tribology." Applied Rheology 5, no. 4 (October 1, 1995): 210–11. http://dx.doi.org/10.2478/arh-1995-050413.

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

Kroger, Martin. "Rheologie von Tensidsystemen / The Rheology of Tenside Systems." Applied Rheology 6, no. 2 (April 1, 1996): 83–85. http://dx.doi.org/10.2478/arh-1996-060210.

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

Dongre, R., J. Youtcheff, and D. Anderson. "Mit Rheologie zu besseren Strassen / Better Roads Through Rheology." Applied Rheology 6, no. 2 (April 1, 1996): 75–82. http://dx.doi.org/10.2478/arh-1996-060209.

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

Versmold, H. "Scattering from Shear-Ordered Dispersions." Applied Rheology 17, no. 1 (February 1, 2007): 11412–1. http://dx.doi.org/10.1515/arh-2007-0002.

Full text
Abstract:
Abstract Rheology is commonly used as a tool for analytics and quality control in latex technology. As soon as flow becomes essential for the structure measured in a scattering experiment we call it scattering from shear-ordered dispersions or rheologic scattering. In this paper it is shown that the structure of concentrated dispersions can with advantage be studied by scattering experiments. Theoretical and experimental aspects as well as examples of small-angle synchrotron x-ray and neutron scattering from colloidal dispersions, presented in the paper, are closely related to rheology.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Rheologie {Physik"

1

Mahle, Stefan [Verfasser], and Mario [Akademischer Betreuer] Liu. "Rheologie von granularer Materie und Ferrofluiden / Stefan Mahle ; Betreuer: Mario Liu." Tübingen : Universitätsbibliothek Tübingen, 2012. http://d-nb.info/1162699744/34.

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

Ar, Gönül [Verfasser], Claudia [Akademischer Betreuer] Schmidt, and Heinz-Siegfried [Akademischer Betreuer] Kitzerow. "Lyotrope Flüssigkristalle unter Scherung : Untersuchungen mit Hilfe von Rheologie und NMR-Spektroskopie / Gönül Ar. Betreuer: Claudia Schmidt ; Heinz-Siegfried Kitzerow." Paderborn : Universitätsbibliothek, 2011. http://d-nb.info/1033765090/34.

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

Klatt, Dieter. "Entwicklung und Anwendung der Mehrfrequenz-Magnetresonanzelastographie." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2010. http://dx.doi.org/10.18452/16112.

Full text
Abstract:
Magnetresonanzelastographie (MRE) bietet die Möglichkeit, über die Aufnahme mechanischer Scherwellen im Körper auf die mechanischen Eigenschaften lebender Gewebe zu schließen. Dabei werden in der klassischen MRE Wellen mittels Einkopplung externer Vibrationen einer einzelnen Frequenz angeregt. Wegen der starken Absorption der Vibrationsenergie in biologischen Geweben und der damit verbundenen Dispersion der Phasengeschwindigkeit sowie der Dämpfung der Wellen können mit dieser Methode nur frequenzabhängige Größen, jedoch keine Materialkonstanten bestimmt werden. Die in dieser Arbeit entwickelte Methode erlaubt die synchrone Einkopplung und Aufnahme multipler Gewebeschwingungen, wodurch viskoelastische Gewebekenngrößen in einer zeitlich-zyklisierten MRE-Untersuchung erfasst werden können. Diese Technik wird in Phantomstudien, an Gewebeproben sowie am Menschen evaluiert. Mittels verschiedener rheologischer Modelle werden erstmalig die viskoelastischen Eigenschaften der Leber und des Gehirns in ihrem intakten, lebenden Umfeld bestimmt. Dabei zeigt sich die Überlegenheit eines zweiparametrischen Modells, mit dessen Hilfe die gewonnene, spektrale Information des komplexen Moduls des Gewebes in eine einzige diagnostisch-relevante Kenngröße zusammengefasst werden kann.
Magnetic resonance elastography (MRE) is capable of measuring the mechanical properties of living tissue by using externally introduced vibrations and phase contrast magnetic resonance imaging techniques. Until now, monofrequency shear wave excitation techniques have been used in conventional MRE. However, since biological tissue is highly dispersive due to its strong damping characteristics, the study of tissue rheology requires knowledge of wave propagation at multiple frequencies. The multifrequency-MRE method, which was engineered in this thesis, applies a superposition of multiple harmonics as the shear wave excitation signal. All vibrations are acquired simultaneously, which enables the determination of viscoelastic tissue parameters in one time-resolved MRE experiment. This technique is evaluated in studies on gel phantoms and excised tissue samples, as well as in human in-vivo studies. The viscoelastic properties of human brain and liver are determined in their in-vivo environment using several rheological models. A two-parameter fractional model demonstrates excellent stability and allows for combining the spectral information of the complex modulus acquired by multifrequency-MRE, which then results in a single viscoelastic parameter that is diagnostically relevant.
APA, Harvard, Vancouver, ISO, and other styles
4

Auth, Christian. "Plate tectonics in computational simulations of terrestrial mantle convection with grain-size-dependent rheology." [S.l.] : [s.n.], 2001. http://webdoc.sub.gwdg.de/diss/2002/auth/auth.pdf.

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

BORREGA, REGIS. "Suspensions de microgels polyelectrolytes : proprietes physico-chimiques, rheologie, ecoulement." Paris 6, 2000. http://www.theses.fr/2000PA066060.

Full text
Abstract:
Ce travail est consacre a l'etude des suspensions de microgels polyelectrolytes. Les microgels sont des particules colloidales constituees d'un reseau polymere gonfle par un solvant, l'eau dans cette etude. Les proprietes de gonflement des microgels et les proprietes potentiometriques de leurs suspensions ont ete etudiees par diffusion de lumiere, par ph-metrie et par conductimetrie. Les resultats peuvent etre interpretes en prenant en compte l'existence de la reparation non-homogene des ions entre l'interieur et l'exterieur des microgels. Les proprietes rheologiques lineaires et non-lineaires de ces suspensions ont fait l'objet d'une etude approfondie en fonction de la concentration. Dans le regime dilue, les variations de la viscosite a gradient nul en fonction de la fraction volumique des particules suivent une courbe unique proche de celle attendue pour les suspensions de spheres dures, quelles que soient les conditions physico-chimiques des suspensions. Les suspensions concentrees presentent des proprietes elastiques et de seuil d'ecoulement, dont l'origine est l'existence de zones de contact entre les microgels. Les courbes d'ecoulement ont pu etre interpretees a partir d'un modele simple d'ecoulement faisant intervenir un temps de relaxation microscopique qui traduit la competition entre la friction locale et les forces de rappel d'origine elastique des microgels. De facon remarquable, les proprietes rheologiques des suspensions concentrees dependent de leur histoire mecanique. Nous avons decrit et rationalise ces effets en terme de vieillissement rheologique par analogie avec le vieillissement des verres. A ces proprietes rheologiques sont associees des modes d'ecoulement tres particuliers qui ont ete etudies grace a deux experiences specifiques de videomicroscopie et de diffusion multiple de la lumiere.
APA, Harvard, Vancouver, ISO, and other styles
6

Weyßer, Fabian [Verfasser]. "Rheology of Brownian Discs / Fabian Weyßer." Konstanz : Bibliothek der Universität Konstanz, 2011. http://d-nb.info/1017326479/34.

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

Heinen, Marco [Verfasser]. "Charged colloids and proteins: Structure, diffusion, and rheology. / Marco Heinen." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2011. http://d-nb.info/101759306X/34.

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

Kuzhir, Pavel. "SUSPENSIONS MAGNETIQUES : LA RHEOLOGIE ET LA SEPARATION." Habilitation à diriger des recherches, Université Nice Sophia Antipolis, 2014. http://tel.archives-ouvertes.fr/tel-01073537.

Full text
Abstract:
Dans ce manuscrit, j'ai brièvement décrit mes activités scientifiques depuis la soutenance de ma thèse de doctorat en physique en fin 2003. J'ai prêté une attention particulière aux recherches axées sur la rhéologie et la capture de particules des suspensions magnétiques. Une grande partie de mes recherches a été focalisée sur l'effet de la forme des particules magnétiques et de l'orientation du champ magnétique sur la contrainte seuil apparaissant dans les suspensions magnétiques suite à l'agrégation de ces particules induite par le champ appliqué. En comparant les microfibres magnétiques aux microsphères magnétiques, il a été montré que la contrainte seuil des suspensions de fibres était d'environ trois fois supérieure à celle des suspensions de sphères soumises aux mêmes conditions. Un tel effet de forme a été expliqué par (1) une perméabilité magnétique plus élevée des agrégats composés de fibres ; (2) une friction solide plus forte entre les fibres. En ce qui concerne l'effet d'orientation du champ, nous avons confirmé expérimentalement un comportement à seuil important dans le cas où le champ magnétique est orienté le long de l'écoulement ou de la vorticité. Un tel effet magnétorhéologique " longitudinal " a été expliqué par des fluctuations stochastiques des agrégats autour de leur orientation d'équilibre; ces fluctuations étant causées par des interactions magnétiques entre agrégats. Une autre partie des études a été focalisée sur la séparation magnétique des nanoparticules en vue de leur application dans la séparation de biomolécules ou l'extraction de micropolluants. On a notamment étudié l'effet de la séparation de phase sur la capture de nanoparticules par des collecteurs magnétiques (microsphères aimantées par un champ magnétique externe). Il a été montré que la séparation de phase augmente considérablement l'efficacité de capture et que ce processus est régi par trois nombres sans dimensions : la concentration en nanoparticules, le paramètre d'interaction dipolaire et le nombre de Mason qui représente le rapport des forces hydrodynamiques sur les forces magnétiques exercées sur les nanoparticules.
APA, Harvard, Vancouver, ISO, and other styles
9

Partridge, Susan Jill. "Rheology of cohesive sediments." Thesis, University of Bristol, 1985. http://hdl.handle.net/1983/f3294ccc-c8af-42f9-858b-4ab7e0c89042.

Full text
Abstract:
Polystyrene latices of particle diameter 0.97 ~, 1.41 ~ and 1.92 ~, at an electrolyte concentration of 0.5 mol dm- 3 sodium chloride, were' sterically stabilised by the adsorption of a monolayer of a monodisperse nonionic surface active agent, C12E6• Optical microscopy showed that the resultant systems were weakly flocculated, with only slight agitation required to destroy the flocs. Calculations showed that the van der Waals attractive potential dominated the highly screened electrostatic repulsive potential; the particles were prevented from coagulating into the primary minimum through the presence of the steric barrier. Potential energy well depths of 7 - 15 kT were obtained. Rapid sedimentation of the systems occurred by consolidation of r..he aggregated structure after an induction period which increased with increasing volume fraction to give a final sediment volume fraction of approximately 0.4 - 0.45. Constant stress viscometry demonstrated that the suspensions were shear thinning with a limiting Newtonian viscosity at low stresses. At high stresses the viscosity was similar to that expected for a dispp.rsion of hard spheres as calculated from Krieger's equation~2 Shear wave propagation experiments were performed to measure the high frequency limit of the shear modulus as a function of volume fraction. The values obtained were compared with a theoretical model due to Zwanzig and Mountain79 and based on a statistical mechanical description of the microstructure combined with the pair interaction potential of the particles. Parameters required for the model were the suspension volume fraction, the Stern potential, the Hamaker constant and the extent of the adsorbed layer, all of which were determined independently of the rheological measurements. Good agreement was obtained between theoretical and experimental data when using a Barker Henderson perturbed hard sphere potential model to calculate the pair distributionfunction. The model thus provided a strong test of the use of liquid state theory for the prediction of the transport properties of colloidal suspensions. Predictions of the zero shear viscosity were made using a similar model.
APA, Harvard, Vancouver, ISO, and other styles
10

Chatté, Guillaume. "Propriétés d'écoulement de suspensions concentrées de particules de PVC et leur lien avec la physico-chimie du système." Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLET005.

Full text
Abstract:
Nous étudions des suspensions concentrées de particules non-colloïdales de PVC. Ces suspensions, appelées plastisols, sont utilisées principalement pour la fabrication de revêtements de sols.Elles présentent notamment un phénomène de rhéoépaississement (hausse de la viscosité en cisaillant). Nous montrons que cela provient des forces de frottement entre particules. En effet, à l’aide d’un microscope à force atomique, nous sommes pour la 1ère fois capable de relier directement la contrainte macroscopique d’apparition du rhéo-épaississement à la contrainte microscopique d’apparition de la friction solide entre particules.Nous caractérisons la viscosité de la suspension jusqu’à 100 000 s-1 et nous observons qu’une plus grande polydispersité limite le rhéoépaississement. Les différences de contraintes normales N1 et N2 sont aussi mesurées. Par ailleurs, des mesures à l’aide de rayons X ou d’ultrasons ne montrent aucune migration de particules sous cisaillement.Nous montrons également que la géométrie a un fort impact sur l’écoulement de la suspension concentrée. Un entrefer plus petit provoque une baisse de la viscosité et retarde le rhéoépaississement. Une approche non-locale permet de rationaliser les résultats.La substitution de particules de PVC par des particules de CaCO3 modifie profondément la viscosité et la densité d’empilement maximum. Nous développons alors des modèles simples pour modéliser ces effets. En outre, nous mesurons l’impact sur la rhéologie d’un éventuel surfactant à la surface des particules.Nous avons pu finalement étudier des instabilités observées en étalant ces suspensions à haute vitesse. Une instabilité de surface est d’abord observée. A plus haute vitesse, un dépôt se forme en aval sur le couteau. Nous corrélons ces instabilités avec l’apparition de différences de contraintes normales
Highly concentrated and non-colloidal suspensions consisting of micrometric PVC particles dispersed in a liquid phase, were studied. These suspensions, called plastisol, are mostly used in vinyl flooring manufacture.A key feature of these suspensions is shear-thickening, since viscosity greatly increases as a function of the applied shear rate. This phenomenon is explained as being related to frictional forces between particles. Indeed, using an Atomic Force Microscope, we were able, for the first time, to link the macroscopic stress, at which shear-thickening appears, with the microscopic stress needed to enter a frictional regime.We then characterize the suspension viscosity up to 100 000 s-1. We observed that shear thickening is lowered with a more polydisperse powder. Large normal stress differences N1 and N2 were also measured, along with shear thickening. In addition, using both X-ray radiography and ultrasound, no particle migration in the sheared suspension could be detected.We also found that geometry plays a major role in the features of the flow of concentrated suspensions. For a smaller gap, the viscosity is lower and shear-thickening is pushed to higher shear rates. A non-local approach accounts for our experimental results.Replacing a number of PVC particles with CaCO3 particles changes both the viscosity and the maximum packing fraction quite dramatically. For both of these, we developed simple models that matched quite well with the experimental data. Moreover, we elucidate the rheological changes resulting from adding surfactant at the surface of each particle type.Finally, we investigated some instabilities observed while coating at high speed. At a moderate speed, a ribbing phenomenon appears. At a higher speed, a deposit is formed on the knife (downstream). The appearance of these instabilities correlates with normal stress differences
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Rheologie {Physik"

1

Phan-Thien, Nhan. Understanding Viscoelasticity: Basics of Rheology. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Shenoy, Aroon V. Rheology of Filled Polymer Systems. Dordrecht: Springer Netherlands, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

I͡Anovskiĭ, I͡U G. Polymer Rheology: Theory and Practice. Dordrecht: Springer Netherlands, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Jacques, Denis. Physico-chimie des lubrifiants: Analyses et essais. Paris: Ed. Technip, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Gutzow, Ivan S. The Vitreous State: Thermodynamics, Structure, Rheology, and Crystallization. 2nd ed. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Dealy, John M. Melt Rheology and Its Role in Plastics Processing: Theory and Applications. Dordrecht: Springer Netherlands, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Luo, Liaofu. Collected works on theoretical biophysics. Hohhot, Inner Mongolia: Inner Mongolia University Press, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Phan-Thien, Nhan. Understanding Viscoelasticity: An Introduction to Rheology. 2nd ed. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Covas, J. A. Rheological Fundamentals of Polymer Processing. Dordrecht: Springer Netherlands, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Giesekus, Hanswalter. Progress and Trends in Rheology II: Proceedings of the Second Conference of European Rheologists, Prague, June 17-20, 1986. Heidelberg: Steinkopff, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Rheologie {Physik"

1

West, Bruce J., Mauro Bologna, and Paolo Grigolini. "Fractional Rheology." In Physics of Fractal Operators, 235–70. New York, NY: Springer New York, 2003. http://dx.doi.org/10.1007/978-0-387-21746-8_7.

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

Prentice, J. H., K. R. Langley, and R. J. Marshall. "Cheese Rheology." In Cheese: Chemistry, Physics and Microbiology, 303–40. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2650-6_8.

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

Utracki, Leszek A., Maryam M. Sepehr, and Pierre J. Carreau. "Rheology of Polymers with Nanofillers." In Polymer Physics, 639–708. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2010. http://dx.doi.org/10.1002/9780470600160.ch16.

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

Ilg, P., and S. Odenbach. "Ferrofluid Structure and Rheology." In Lecture Notes in Physics, 1–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-85387-9_4.

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

Windhab, E. J. "Rheology in food processing." In Physico-Chemical Aspects of Food Processing, 80–116. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4613-1227-7_5.

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

Kléman, M. "Lamellar Lyotropic Phases: Rheology, Defects." In Springer Proceedings in Physics, 164–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-83202-4_23.

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

Kohlstedt, David L., Quan Bai, Zi-Chao Wang, and Shenghua Mei. "Rheology of Partially Molten Rocks." In Physics and Chemistry of Partially Molten Rocks, 3–28. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4016-4_1.

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

Wyss, Hans M. "Rheology of Soft Materials." In Fluids, Colloids and Soft Materials: An Introduction to Soft Matter Physics, 149–64. Hoboken, NJ, USA: John Wiley & Sons, Inc, 2016. http://dx.doi.org/10.1002/9781119220510.ch9.

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

Curtiss, C. F., R. Byron Bird, and Ole Hassager. "Kinetic Theory and Rheology of Macromolecular Solutions." In Advances in Chemical Physics, 31–117. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470142547.ch2.

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

Lionberger, Robert A., and W. B. Russel. "Microscopic Theories of the Rheology of Stable Colloidal Dispersions." In Advances in Chemical Physics, 399–474. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470141700.ch3.

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

Conference papers on the topic "Rheologie {Physik"

1

Renouf, Mathieu. "Physico-Chemical Modeling of Third Body Rheology." In STLE/ASME 2010 International Joint Tribology Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ijtc2010-41036.

Full text
Abstract:
The well-known concept of third body was introduced by Godet in the seventies to characterise the discontinuous and heterogeneous interface that separates two bodies in contact. This thin layer (from some nanometers to some micrometers high) appears to possess its own rheology depending of contact conditions, material properties and often, extra unknown parameters. If its main common role concerns essentially mechanical aspects such as velocity accommodation, load carrying capacity and solid lubricant, it plays an important role in other physical aspects. For example, it ensures the thermal continuity between two bodies in contact and explains the jump of temperature observed experimentally. Moreover, it is able to capture the maximal temperature through its thickness. Due to the difficulty to instrument a real contact without disturbing the local rheology, observations of the third body rheology occur only on simplified experimental set-up. To reproduce and try to understand “real contact in presence of third body”, numerical tools have been developed and adapt to face new challenge raised by the third-body concept. The discontinuity and heterogeneity of such interface led researchers to use discrete element methods (DEM) to describe its evolution. Several improvments of the method allow to deal with the mechanical and the thermal behaviour of such media but without interactions. The integration of physicochemical aspects is presented in the paper to link thermal and mechanical behaviour and proposed a model able to represent the multi-physical feature of a contact interface.
APA, Harvard, Vancouver, ISO, and other styles
2

García-Rojas, B. "Complex Fluids: Rheology and Thermodynamics." In MATERIALS SCIENCE AND APPLIED PHYSICS: 2nd Mexican Meeting on Mathematical and Experimental Physics. AIP, 2005. http://dx.doi.org/10.1063/1.1928165.

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

Barbosa, Flávia V., Pedro E. A. Ribeiro, Maria F. Cerqueira, Delfim F. Soares, José C. F. Teixeira, Senhorinha F. C. F. Teixeira, Rui A. M. M. Lima, and Diana M. D. Pinho. "Rheology Characterization of Solder Paste." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71413.

Full text
Abstract:
Reflow soldering process is widely implemented in the electronics industry. This method allows the attachment of electronic components to a printed circuit board (PCB) through the melting of solder paste, which makes the interconnection between them. The reflow soldering process must ensures the correctly melting of the solder paste and heating of the adjoining surfaces, without the electronic components suffer overheating or any other type of damage. Solder paste is the most widespread material in the SMT (Surface Mount Technology) process using reflow soldering. An ideal solder paste will increase production efficiency, decreasing the amount of defects associated with the reflow soldering process. However, several factors affects the performance of the solder paste, from rheology, printability, and reliability to the adhesion strength of components and the ability to avoid defects related to reflow. Therefore, all these factors need to be considered during the selection of a solder paste for a specific application. The rheological properties were determined using both a double cylinder (PHYSICA-RHEOLAB MC1) and a double plate (Malvern) rheometers. The later enable the determination of viscoelastic properties. The present paper analyses the rheological behavior of a SAC405 solder paste, a mixture containing a metal alloy powder (25–45 μm) and a flux which at its base is a resin. The tests were carried out at conditions (temperature and shear rate) of relevance to the printing process. The results obtained show that the paste viscosity closely follows the Herschel-Bulkley model and shows a thixotropic behavior without fully recovery between applications. In addition, the viscosity decreases with the increase of shear rate confirming that the solder paste is a non-Newtonian fluid, shear thinning in behavior. The oscillatory tests have shown that the transition from elastic to viscous behavior occurs at a shear stress above 35 Pa. On the other hand, the creep/recovery test confirms that the level of solicitation influences the capacity of recovery of the solder paste.
APA, Harvard, Vancouver, ISO, and other styles
4

Yamamoto, R. "Dynamics and rheology of a supercooled polymer melt." In Third tohwa university international conference on statistical physics. AIP, 2000. http://dx.doi.org/10.1063/1.1291531.

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

Bandyopadhyay, Ranjini. "Dynamical behavior in the nonlinear rheology of surfactant solutions." In Third tohwa university international conference on statistical physics. AIP, 2000. http://dx.doi.org/10.1063/1.1291520.

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

Bošák, Ondrej, Ján Hronkovič, Jozef Preťo, Vladimír Labaš, Stanislav Minárik, Pavol Koštial, and Marian Kubliha. "Study of rheology of rubber blends containing zeolite filler with different binding agents." In TIM 19 PHYSICS CONFERENCE. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0001029.

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

Zakaria, Rosnah, and Azizah Hanom Ahmad. "Rheology behaviour of modified silicone-dammar as a natural resin coating." In ADVANCED MATERIALS AND RADIATION PHYSICS (AMRP-2015): 4th National Conference on Advanced Materials and Radiation Physics. AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4928839.

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

K., Mithra, Santripti Khandai, Banani Mishra, and Sidhartha S. Jena. "Effect of polymer concentration on structure and rheology of poly (sodium acrylate) hydrogels." In DAE SOLID STATE PHYSICS SYMPOSIUM 2017. Author(s), 2018. http://dx.doi.org/10.1063/1.5028618.

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

Reasor, Daniel A., Jonathan R. Clausen, and Cyrus K. Aidun. "Direct Numerical Simulation of Cellular Blood Flow Through a Model Arteriole Bifurcation." In ASME 2010 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2010. http://dx.doi.org/10.1115/sbc2010-19061.

Full text
Abstract:
Blood is composed of a suspension of red blood cells (RBCs) suspended in plasma, and the presence of the RBCs substantially changes the flow characteristics and rheology of these suspensions. The viscosity of blood varies with the hematocrit (volume fraction of RBCs), which is a result not seen in Newtonian fluids. Additionally, RBCs are deformable, which can alter suspension dynamics. Understanding the physics in these flows requires accurately simulating the suspended phase to recover the microscale, and a subsequent analysis of the rheology to ascertain the continuum-level effects caused by the changes at the particle level. The direct numerical simulation of blood flow including RBC migration effects has the capability to resolve the Fåhraeus effect of observing low hematocrit values near walls, the subsequent cell-depleted layer, and the presence of velocity profile blunting due to the distribution of RBCs.
APA, Harvard, Vancouver, ISO, and other styles
10

Chilamkurti, Yesaswi N., and Richard D. Gould. "Discrete Element Studies of Gravity-Driven Dense Granular Flows in Vertical Cylindrical Tubes." In ASME 2016 Power Conference collocated with the ASME 2016 10th International Conference on Energy Sustainability and the ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/power2016-59159.

Full text
Abstract:
The current paper focusses on the characterization of gravity-driven dry granular flows in cylindrical tubes. With a motive of using dense particulate media as heat transfer fluids (HTF), the main focus was to address the characteristics of flow regimes with a packing fraction of ∼60%. In a previous work [1], experimental and computational studies were conducted to understand the effects of different geometrical parameters on the flow physics. The current paper is an extension of that work to gain more insights into the granular flow physics. The three-dimensional computer simulations were conducted by implementing the Discrete Element Method (DEM) for the Lagrangian modelling of particles. Hertz-Mindilin models were used for the soft-particle formulations of inter-particulate contacts. Simulations were conducted to examine the particulate velocities and flow rates to understand the rheology in the dense flow regime. Past studies suggested the existence of a Gaussian mean velocity profile for dense gravity-driven granular flows. These observations were further analyzed by studying the influence of geometrical parameters on the same. The current work thus focusses on studying the rheology of dense granular flows and obtaining a better understanding of the velocity profiles, the wall friction characteristics, and the particle-wall contact behavior.
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography