Debond fracture characterization in sandwich composites under arctic low temperature conditions

Arash Farshidi, Christian Berggreen

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Abstract

Mixed-mode I/II fracture characterization and measurements of low temperature fracture properties for typical naval type sandwich material configurations has been carried out using the mixed mode bending (MMB) test fixture inside a state-of-the-art climatic chamber facility. The developed test methodology is utilized to measure mixed mode fracture toughnesses as well as crack propagation speeds (da/dN) vs. cyclic energy release rate data, investigating and comparing ambient and low temperature face/core fracture behaviour at different mode-mixities in Navy type sandwich composites. Sandwich specimens were manufactured using H100 PVC foam cores and E-glass/Epoxy face sheets. All specimens were pre-cracked in order to define a sharp crack front.
Original languageEnglish
Publication date2017
Number of pages5
Publication statusPublished - 2017
Event21st International Conference on Composite Materials (ICCM-21) - Xi'an, China
Duration: 20 Aug 201725 Aug 2017

Conference

Conference21st International Conference on Composite Materials (ICCM-21)
Country/TerritoryChina
CityXi'an
Period20/08/201725/08/2017

Keywords

  • Ceramics and Composites
  • Foam core
  • Low temperature
  • Mixed-mode fracture
  • MMB
  • Sandwich composites

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