COMPLEX VISCO-ELASTIC AND VISCO-PLASTIC MATERIALS: FROM MICROSCOPIC STRUCTURE AND DYNAMICS TO MACROSCOPIC FLOW

Abstract: 

The aim of the proposal is to investigate the flow of complex visco-elastic and visco-plastic materials with emphasis in the elucidation of the relation of microscopic structure and dynamics with mechanical properties. A wide variety of products consist of such materials with complex rheological response intermediate between solids and liquids. Polymers, colloids and granular systems - all studied here - are main representatives with applications in consumer products often involving complex flows during their processing.

Here we aim to tackle some of the fundamental open problems related with the flow of such visco-elastic and visco-plastic systems using a synergy of state of the art experimental techniques combing rheology, light scattering and microscopy as well as computational methods and computer simulations.

Our research plan will focus in three directions:

  1. Dynamics and rheology of colloidal glasses and gels emphasizing in understanding their yielding behavior and the related particle rearrangements under shear,
  2. experimental and computational shear and extensional rheology of polymer melts and solutions with particular aim in elucidating the effects of branching and entanglements, and explaining their intriguing behaviour, and
  3. study of granular flows and dynamics with applications in seismic dampers, clustering in production lines, also related with vehicle traffic control.

The core of the project will be the training of nine young scientists towards a PhD thesis.

The research plan will be achieved with the cooperation of three Greek groups (FORTH, University of Patras and National Technical University) and the participation of several experienced researchers with complimentary expertise in experiments, theory and simulations.

The project will also benefit from the involvement of two invited researchers (G. Georgiou and S. Hatzikiriakos) and of world known scientists (J.F. Brady, W. Briels and R. Besseling, A. Alexandrou).

Project info

Acronym:
COVISCO
Scientific Coordinator:
Petekidis Georgios
Research Team 2 Leader:
Tsamopoulos Ioannis
Research Team 3 Leader:
Mitsoulis Evangelos

Stats

I.D.:
648
Mis:
380238
Duration (months):
45
Budget:
600 000.00
Diavgeia:
ΑΔΑ: Β41Ω9-ΩΥΚ

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