Fracture toughness in random-chopped fiber-reinforced composites and their strain rate dependence

George C. Jacob, James Michael Starbuck, John F. Fellers, Srdan Simunovic, Raymond G. Boeman

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

While many scientists have investigated the fracture toughness properties in various continuous fiberreinforced composite materials and their dependence on strain rate, there is absolutely no literature available on the fracture toughness properties of random-chopped fiber-reinforced composite materials and their strain rate dependence, which can find extensive use in a wide range of load-bearing engineering and industrial process applications primarily due to the low costs involved in their manufacture in addition to the ease of manufacture. Therefore, the primary goal of this manuscript is to determine the fracture toughness of various random-chopped carbon fiber composite material systems. The four different random-chopped carbon-reinforced epoxy composite material systems studied were P4, HexMC, CCS150, and CCS100. In addition, an attempt is made to investigate and characterize the strain rate effects on the fracture toughness of a random-chopped carbon fiber P4 composite.

Original languageEnglish
Pages (from-to)695-701
Number of pages7
JournalJournal of Applied Polymer Science
Volume100
Issue number1
DOIs
StatePublished - Apr 5 2006

Keywords

  • Composites
  • Fibers
  • Mechanical properties
  • Resins

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