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In-situ Structure Characterization of Elastomers during Deformation and Fracture

Karsten Brüning
This thesis offers novel insights into the time-dependent structural evolution of polymers under deformation. In-situ tensile experiments at high-brilliance synchrotron sources allowed to characterize the material with unrivaled resolution in time and space. The strain-induced crystallization in natural rubber was studied by wide-angle X-ray diffraction. Special emphasis was put on the establishment of new structure-property relationships to give a more in-depth understanding of the mechanical performance of rubber parts, e.g. in tear fatigue loading. To this end, the kinetics of strain-induced crystallization were investigated, subjecting the material to high strain rates. The local structure around a crack tip was observed by scanning wide-angle X-ray diffraction. Ultra-small angle X-ray scattering served to study filled elastomers under deformation, from specially prepared model filler systems to industrially relevant carbon black filled rubbers. Other methods include electron microscopy coupled with in-situ tensile testing and optical dilatometry to examine cavitation in rubbers.The underlying theory as well as a literature review are covered by an extensive introductory chapter, followed by a description of the experimental techniques. The results are presented in more detail than in the original journal publications.
Autor: Brüning, Karsten
EAN: 9783319069067
Auflage: 2014
Sprache: Englisch
Seitenzahl: 140
Produktart: Gebunden
Verlag: Springer International Publishing Springer International Publishing AG
Veröffentlichungsdatum: 08.07.2014
Schlagworte: Polymere - Polymerisation Komposit Verbund (technisch) - Verbundstoff Arbeitsstoff Material Werkstoff
Größe: 14 × 160 × 241
Gewicht: 383 g

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