Publication detail

Fracture response of SiOC-based composites on dynamic loading

HALASOVÁ, M. ČERNÝ, M. CHLUP, Z. STRACHOTA, A. DLOUHÝ, I.

Czech title

Lomová odezva na dynamické namáhání u kompozitů na bázi SiOC

English title

Fracture response of SiOC-based composites on dynamic loading

Type

journal article in Web of Science

Language

en

Original abstract

The fracture resistance to the dynamic loading of composites based on partially pyrolysed SiOC glass reinforced with basalt fibres was investigated using an instrumented impact test. The three-point bend loading configuration of the specimen bars prepared from the composite plate was used. Evolution of the matrix during the pyrolysis plays a key role in creation of bonding between the matrix and fibres, which was in the form of woven fabrics. Different temperatures of pyrolysis were applied in order to determine their influence on the fracture behaviour during impact tests. The high speed camera was employed to observe fracture response to impact loading during the fracture process. The temperature range for pyrolysis was chosen from 600 to 800C with the step of 50C. The partial melting of basalt fibres occurred at temperatures above 800C. Observation of fractographic features on the fracture surfaces was performed using scanning electron microscopy.

Czech abstract

Lomová odolnost vůči dynamickému zatěžování kompozitů založených na částečně pyrolyzovaných SiOC sklech vyztužených čedičovými vlákny byla zkoumána pomocí instrumentované zkoušky rázem v ohybu. Zkušební vzorky kompozitů byly zatěžovány v tříbodovém ohybu. Vývoj matrice během pyrolýzy hraje klíčovou roli při vytváření vazby mezi matricí a vlákny, jež byly v podobě tkaniny. Rozdílné pyrolýzní teploty byly použity za účelem určit jejich vliv na lomové chování při porušování. Rozsah teplot byl zvolen od 600 do 800C s krokem 50C. Částečné tání čedičových vláken nastalo za teplot nad 800C. Pozorování fraktografických prvků na lomových plochách bylo provedeno pomocí skenovací elektronové mikroskopie.

English abstract

The fracture resistance to the dynamic loading of composites based on partially pyrolysed SiOC glass reinforced with basalt fibres was investigated using an instrumented impact test. The three-point bend loading configuration of the specimen bars prepared from the composite plate was used. Evolution of the matrix during the pyrolysis plays a key role in creation of bonding between the matrix and fibres, which was in the form of woven fabrics. Different temperatures of pyrolysis were applied in order to determine their influence on the fracture behaviour during impact tests. The high speed camera was employed to observe fracture response to impact loading during the fracture process. The temperature range for pyrolysis was chosen from 600 to 800C with the step of 50C. The partial melting of basalt fibres occurred at temperatures above 800C. Observation of fractographic features on the fracture surfaces was performed using scanning electron microscopy.

Keywords in English

SiOC glass, basalt reinforcement, woven fabric, impact strength, energy consumption, fracture surface

Released

11.04.2016

Publisher

Sage Publications

Location

UK

ISSN

0021-9983

Volume

50

Number

11

Pages from–to

1547–1554

Pages count

8

BIBTEX


@article{BUT115807,
  author="Martina {Halasová} and Martin {Černý} and Zdeněk {Chlup} and Adam {Strachota} and Ivo {Dlouhý},
  title="Fracture response of SiOC-based composites on dynamic loading",
  year="2016",
  volume="50",
  number="11",
  month="April",
  pages="1547--1554",
  publisher="Sage Publications",
  address="UK",
  issn="0021-9983"
}