4LM50 - Rheology (R)

title=4LM50-Rheology
4LM50-Rheology Picture

Content

The course will start with demonstrating the rich variety of flow phenomena that rheologically complex materials can exhibit. Subsequently, these phenomena will gradually be translated into the appropriate rheological concepts and experimental and numerical tools will be presented to characterize, describe and predict these behaviors. In particular, non-linear viscous behaviour as well as linear and non-linear viscoelasticity will be described and corresponding constitutive relations will be presented. The use of rheometry to determine rheological parameters in shear and extensional flow as well as the rheology of interfaces will be explained. The course will convey the required theoretical and technical background of different experimental techniques to give the user the opportunity, depending on his/her goals, to make a motivated choice on which type of measurement is best suited for his/her application. In addition, insight will be provided regarding the analysis and interpretation of rheological data, specifically with respect to the relations between microstructure and rheology. This aspect will be further illustrated by exploring the typical rheological behaviors of a number of main material classes such as polymers, suspensions and emulsions.
Recent results from the Processing and Performance of Materials group will be an integral part of the course and will serve to illustrate both the theoretical and experimental aspects of rheology.

Objectives

  • The student can describe the variety of flow phenomena that can occur in rheologically complex materials and he/she can link these phenomena to the corresponding rheological concepts.
  • The student understands the concepts of linear and non-linear viscoelasticity and knows the meaning of the different rheological parameters.
  • The student can give an overview of the different rheological constitutive equations and select the appropriate constitutive equation depending on the material and application.
  • The student can calculate material functions from a given constitutive equation and use this information to model rheological behavior.
  • The student can describe the typical rheological behaviour of specific material classes and can use this information to extract structure information from rheological data.
  • The student has technical and theoretical knowledge about experimental rheometry techniques and can apply this knowledge to select and design the appropriate techniques and measurement protocols depending on the material and application.

Contact

R - Responsible lecturer