Applied Rheology: Publications

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Lukas U Arenson, Sarah M Springman, David C Sego
The Rheology of Frozen Soils

Appl. Rheol. 17:1 (2007) 12147 (14 pages)

The rheological behaviour of frozen soils depends on a number of factors and is complex. Stress and temperature histories as well as the actual composition of the frozen soil are only some aspects that have to be considered when analysing the mechanical response. Recent improvements in measuring methods for laboratory investigations as well as new theoretical models have assisted in developing an improved understanding of the thermo-mechanical processes at play within frozen soils and representation of their response to a range of perturbations. This review summarises earlier work and the current state of knowledge in the field of frozen soil research. Further, it presents basic concepts as well as current research gaps. Suggestions for future research in the field of frozen soil mechanics are also made. The goal of the review is to heighten awareness of the complexity of processes interacting within frozen soils and the need to understand this complexity when developing models for representing this behaviour.

Cite this publication as follows:
Arenson LU, Springman SM, Sego DC: The Rheology of Frozen Soils, Appl. Rheol. 17 (2007) 12147.

Heinrich Versmold
Scattering from shear-ordered dispersions

Appl. Rheol. 17:1 (2007) 11412 (7 pages)

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.

Cite this publication as follows:
Versmold H: Scattering from shear-ordered dispersions, Appl. Rheol. 17 (2007) 11412.

Daniel Therriault, Scott White, Jennifer Lewis
Rheological Behavior of Fugitive Organic Inks for Direct-Write Assembly

Appl. Rheol. 17:1 (2007) 10112 (8 pages)

The rheological behavior of a fugitive organic ink tailored for direct-write assembly of 3D microfluidic devices is investigated. Rheological experiments are carried out to probe the shear storage and loss moduli as well as the complex viscosity as a function of varying temperature, frequency and stress amplitude. Master curves of these functions are assembled using time-temperature superposition. The fugitive ink, comprised of two organic phases, possesses an equilibrium shear elastic modulus nearly two orders of magnitude higher than that of a commercial reference ink at room temperature and a peak in the relaxation spectrum nearly six orders of magnitude longer in time scale. The self-supporting nature of extruded ink filaments is characterized by direct video imaging. Comparison of the experimentally observed behavior to numerical predictions based on Euler-Bernoulli viscoelastic beam analysis yield excellent agreement for slender filaments.

Cite this publication as follows:
Therriault D, White S, Lewis J: Rheological Behavior of Fugitive Organic Inks for Direct-Write Assembly, Appl. Rheol. 17 (2007) 10112.

Delegates of the national rheological societies
Society's Site Mar 2007 - Aug 2007

Appl. Rheol. 17:1 (2007) 52-61

Cite this publication as follows:
Rheological Societies: Society's Site Mar 2007 - Aug 2007, Appl. Rheol. 17 (2007) 52.

Jun-ichi Takimoto
The 22nd annual meeting of the polymer processing society

Appl. Rheol. 17:1 (2007) 44-45

Cite this publication as follows:
Takimoto J: The 22nd annual meeting of the polymer processing society, Appl. Rheol. 17 (2007) 44.

Raj Chhabra, Paul Slatter
First Conference of the Southern African Society of Rheology (SASOR)

Appl. Rheol. 17:1 (2007) 41-41

Cite this publication as follows:
Chhabra R, Slatter P: First Conference of the Southern African Society of Rheology (SASOR), Appl. Rheol. 17 (2007) 41.

Christian Wagner
Microrheology and Rheological Phenomena in Microfluidics 2006 Workshop of the German Rheological Society (DRG)

Appl. Rheol. 17:1 (2007) 42-43

Cite this publication as follows:
Wagner C: Microrheology and Rheological Phenomena in Microfluidics 2006 Workshop of the German Rheological Society (DRG) , Appl. Rheol. 17 (2007) 42.

David Cheneler
Introduction to Polymer Viscoelasticity (M.T. Shaw, W.J. MacKnight)

Appl. Rheol. 17:1 (2007) 10-11

Cite this publication as follows:
Cheneler D: Introduction to Polymer Viscoelasticity (M.T. Shaw, W.J. MacKnight), Appl. Rheol. 17 (2007) 10.


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