The effect of the strain rate on the strength of FRP-sandwich face and core materials: A literature study

Martin Hildebrand

Research output: Book/ReportReport

Abstract

This literature study contains high strain-rate strength data of materials used in FRP-sandwich construction. Face laminate data includes glass, carbon or aramid fibres laminates with polyester, epoxy or phenolic matrices. The core material data includes crosslinked and linear PVC foams, end-grain balsa, aluminium and aramid paper honeycomb. The study indicates that the strain rate has an effect on the strength of FRP laminates and various core materials. In most cases, the strength increases with increasing strain rate. The increase in strength is typically between 10 and 80% at impact strain rates which are four decades higher than those used in quasistatic tests.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages27
Publication statusPublished - 1997
MoE publication typeD4 Published development or research report or study

Publication series

SeriesVALB
Number179

Keywords

  • strain rate
  • strength
  • sandwich
  • face
  • core
  • fibre reinforced plastic

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