Course code: wb1433-04

Course name: Thermomechanical modelling and characterisation of polymers

This concerns a Course

ECTS credit points: 3

Faculty of Mechanical Engineering and Marine Technology

Section of Engineering Mechanics

Lecturer(s): Jansen, dr. ir. K.M.B.

Tel.:  015 - 27 86905 /      

Catalog data:

polymers, viscoelasticity, dynamic mechanical measurements, data analysis, interconversion relations, DSC

Course year:

MSc 1^st year

Course language:

English

In case of Dutch: Please contact the lecturer about an English alternative, whenever needed.

Semester:

2A

Hours per week:

3

Other hours:

Assessment:

Oral exam

Assessment period:

 /  /

(see academic calendar)

Prerequisites (course codes):

Follow up (course codes):

Detailed description of topics:

Linear viscoelasticity, creep, stress relaxation and dynamic behaviour, glass transition. Boltzman superposition principle. Time-temperature superposition. Free-volume interpretation. Crosslinking effects. Deformation modes, shear, tensile and bulk compression. Interconversion relations, Kramers-Kronig relations. Laplace transformation. Non-linear viscoelastic models. Experimental methods: shear rheometers, dynamic mechanical devices, resonance devices, bulk modulus measurements. Thermal Expansion measurements. Differential Scanning Calorimetry.

Course material:

• Hand-outs and sections from various books

References from literature:

Remarks assessment, entry requirements, etc.:

Learning goals:

The student must be able to:

1. understand the derivation of the basic linear viscoelastic constitutive equations

2. describe the differences between relaxation, creep, creep-recovery, constant strain rate and dynamic tests

3. identify the glassy and rubbery parts in a viscoelastic function

4. describe the basic shape of the creep, relaxation and dynamic viscoelastic functions as a function of either time or frequency

5. select the appropriate equations for transforming data from creep tests to that of relaxation and dynamic experiments (and vice versa)

6. use the elastic-viscoelastic correspondence principle to solve simple viscoelastic problems

7. explain the basics of the Time-Temperature Superposition principle

8. use the Time-Temperature Superposition principle to construct mastercurves of experimental data

9. understand the basics of the rubber elasticity and free volume theories

Computer use:

MatLab

Laboratory project(s):

The course includes practical work on a Dynamic Mechanical Analyser and on a Differential Scanning Calorimeter.

Design content:

Percentage of design:  0%