full page for printing
back to Rheo-Hub


IRIS Rheo-Hub (release: April 2016) is compatible with MSWindows10 and earlier

Teaching rheology with IRIS-Rheohub

In the 2019 Fall Semester, the University of Stuttgart, Germany, will begin to support their regular rheology course with the IRIS Rheo-Hub program. Each student is given access to the software so that the teacher, jointly will the entire class, can quantitatively analyze data from rheological experiments. This includes plotting, overlay of material functions, extraction of material parameters, modelling with theory, data storage and retrieval and more.

ARC19 in Sovenia:

Amherst Rheology Course 2019 (ARC19): “Synergy of Experiment with Theory in Rheology”. Time and Location: April 07/08, 2019, in Portoroz, Slovenia; taught in connection with Annual European Rheology Conference. Experimentalists and theoreticians taught the course jointly: Manfred H. Wagner, Berlin, Germany; Ole Hassager, Lyngby, Denmark; H. Henning Winter, Amherst MA, USA Objective of Course: A quantitative approach to rheology is presented and taught in tutorials: handling of data from rheological experiments, plotting, overlay, extraction of material parameters, modelling with theory, data storage and retrieval and more. On two parallel screens, short lectures on rheology fundamentals will be combined with hands-on tutorials. This will generate an interdisciplinary group experience of discussing rheological experiments and theory and application. On the first day, participants will master rheology on a quantitative level and also will learn the underlying concepts that lead to the quantitative results. Most of first day’s focus is on linear viscoelasticity. The second day has a strong focus on non-linear viscoelasticity and the underlying theory. Continued tutorials at the end of the second day will allow participants to see the rheology of their own materials in new ways, discover, and draw quantitative results. Experiment and theory are well integrated in the new teaching tools of the course.

ARC18 in Luxembourg:

Amherst Rheology Course (ARC18): “Synergy of Experiment with Theory in Rheology”. Time and Location: March 21/22, 2018 in Luxembourg ; taught in connection with the 2018 “Joint Symposium of Belgian Group of Rheology and German Rheological Society”. Experimentalists and theoreticians taught the course jointly: Manfred Wagner, Berlin, Germany; Jörg Baller, Luxembourg; H. Henning Winter, Amherst MA, USA

ARC15 in Berlin:
"Synergy of Experiment with Theory in Rheology"

Two-Day Rheology Course co-directed by: H. H. Winter, Amherst Massachusetts/USA and M. H. Wagner, Berlin/ Germany
Location: Berlin/Germany. Time: March 23-24, 2015; Language: English
Acceptance is limited to 35 participants

IRIS Rheo-Hub (release: April 2014) is compatible with Windows7 and Windows8 of Microsoft

Many more features have been added over the years according to suggestions of IRIS users.

Added features in IRIS 9 (release: June 2005)

Calculation of molecular weight distribution
* Creation of GEX from Mn, Mw, Mz
* MWD from G', G" using the model by Cocchini and Nobile

A first simulation module was introduced
* NAPLES of Masubuchi, Ianniruberto, and Marrucci (visualizaion only) for linear chains, stars, pom-pom, tree, blends of two components, and block copolymers
* Preparation of NAPLES data input with IRIS dialog

* MSF now takes up to 10 shear/elongation rates
* Wagner damping function model dialog is now the same as MSF
* Doi-Edwards Independent Alignment model implemented
* Kroger-Hess model implemented
* Tube dilation

o also for elongational flow (uniaxial, equibiaxial, planar elongation)
o plotting unrelaxed fraction as a function of relaxation time or inverse relaxation time

Data and file handling
* Preview of ASCII data files included
* Multiple templates for ASCII file input
* Multiple ASCII file input
* Double click on IRIS data file (*.iwd) opens it in IRIS (not in Notepad anymore).
*.iwd files can also be dragged onto IRIS now
* Drawing order of curves (Sequence of data sets in Project Explorer) can be modified
* Values of viscosity fit data points can be shown in a spreadsheet

Material functions
* Glass temperature can be edited
* Plot of shift factors vs Tg/T and (T-Tg)/T
* aT: Implementation of Vogel-Fulcher parameters
* bT: Only 2nd order polynomial now
* b2: Special equations for damping function added
* Deviation between dynamic experimental data and spectrum fit can be displayed
* Difference between material functions can be calculated (from one or two different data sets).

* Tick marks can be adjusted
* Tick on opposite axis possible
* Axes can be freely adjusted with the mouse
* Autoscaling can now be disabled
* Log scaling begin and end at intermediate values (not full decades), e.g. at 5 ·102 instead of 102
* Linear scaling: first major tick can be different from axis start point, e.g. axis starts at -0.5 and first tick is at 0
* Additional margins can be automatically added.
* Rescaling can now also be done for each entire axis. In this case, the rescaling factor is added to the unit label.

General user friendliness
* New context (right-click) menus for

o Viscosity fit lines
o Labels
o Scaling

Send your questions and suggestions to H. H. Winter at IRISrheo@.yahoo.com