Upholstery materials behavior evaluation method

Monday, December 18, 2017 - 10:00
Dissertation Defence Hall (K. Donelaičio St. 73- 403 room)

Author, Institution: Donata Zubauskienė, Kaunas University of Technology

Science Area, Field of Science: Technological Sciences, Materials Engineering - 08T

Summary of the Doctoral Thesis: Summary

The doctoral dissertation is available on the internet and at the library of Kaunas University of Technology (K. Donelaičio g. 20,Kaunas)

Scientific Supervisor: Prof. dr. Eugenija STRAZDIENĖ (Kaunas University of Technology, Technological Sciences, Materials Engineering, 08T).

Scientific Advisor: Assoc. prof. dr. Virginijus URBELIS (Kaunas University of Technology, Technological Sciences, Materials Engineering, 08T).

Dissertation Defence Board of Materials Engineering Science Field:

Prof. Dr. Rimvydas Milašius (Kaunas University of Technology, Technological Sciences, Materials Engineering, 08T) – chairman, 
Prof. Dr. Iwona Frydrych (The Textile Research Institute in Lodz, Technological Sciences, Materials Engineering, 08T),
Prof. Dr. Saulius Grigalevičius (Kaunas University of Technology, Technological Sciences, Materials Engineering, 08T),
Prof. Dr. Malgorzata Matusiak (The Textile Research Institute in Lodz, Technological Sciences, Materials Engineering, 08T),
Assoc. Prof. Dr. Daiva Mikučionienė (Kaunas University of Technology, Technological Sciences, Materials Engineering, 08T).
 

Annotation:
Better wear and strength properties are required for upholstery textiles, this being the main distinction in opposition to the clothing textiles. It is crucial that the fabrics carry not only the best tensile properties, but are also investigated for the deformation properties, both inside and outside, by considering friction and loads appearing in the process of upholstery. Upholstery fabrics must be chosen considering the tensile properties and the deformational behaviour at low-stress loading, therefore the aim of this work was to investigate and evaluate the upholstery materials performance properties under uniaxial and biaxial deformations in respect to low-stress and breaking loading. Experimental analysis of upholstery materials uniaxial low-stress properties defined by the KES-F testing system was performed and the effect of the properties of upholstery materials determined by the KES-F testing system upon creep deformation processes was defined in this dissertation. Creep and relaxation processes of upholstery materials in respect to the anisotropy level under uniaxial loadings were analyzed. The effect of fused upholstery system structure upon the variations of its spatial shape under biaxial punching was defined as well as the effect of uniaxial pre-tension level upon biaxial punching deformation of fused upholstery systems was evaluated. Finally, the effect of friction in the contact zone between the punch and upholstery material surface during biaxial deformation process was determined.