Temperature-dependent changes in thermoplastic sandwich core properties and failure mechanisms using four-point tests with short specimens

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Abstract

Because of the emerging need for sustainable materials in the aircraft industry a promising composite material group is remeltable thermoplastic sandwich composites. To secure the useability of these sustainable thermoplastic composite materials, it is irrevocable to gain sufficient insight into the performance of these materials under versatile environmental conditions. In this investigation, the core properties, such as the ultimate core shear strength, the shear stiffness, and the associated failure mechanisms, at different temperatures are investigated by a four-point bending test series.
This series of tests can be seen as a step towards precise material characterization to ensure the development of a sustainable material alternative for structural aircraft parts, without compromising safety and reliability. Furthermore, critical aspects could be identified for prospective investigations.
Original languageEnglish
Title of host publicationProceedings of ECCM21 – 21st European Conference on Composite Materials : Material and Structural Behavior - Simulation & Testing
Volume3
Place of PublicationNantes, France
PublisherEuropean Society for Composite Materials
Publication date2024
Pages1318-1322
ISBN (Electronic)978-2-912985-01-9
Publication statusPublished - 2024
Event21st European Conference on Composite Materials - Nantes, France
Duration: 2 Jul 20245 Jul 2024

Conference

Conference21st European Conference on Composite Materials
Country/TerritoryFrance
CityNantes
Period02/07/202405/07/2024

Keywords

  • Thermoplastic
  • Sandwich
  • Honeycomb
  • Four-point bending
  • Core shear failure
  • Low temperature
  • Aircraft applications

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